Which inspections and tests can be provided?

Inspection scope depends on order and standard. Typical tests include ECT (Eddy Current Test), hydrostatic test, PMI, and other NDT options by request.

Seamless Heat Exchanger & Boiler Tubes Manufacturer in Korea

Q: Do you provide MTC (EN 10204 3.1 / 3.2)?

Yes. We can provide MTC documentation (EN 10204 3.1 / 3.2) by request, along with product traceability information.

Q: What standards do you support for heat exchanger tubes?

We support major international standards such as ASTM, ASME and JIS. Typical items include A/SA179, A/SA192, A/SA213, A/SA269 and more depending on project requirements.

Q: What materials are available?

Stainless steel (304/304L, 316/316L etc.), duplex (S31803, S32205, S32750), alloy (904L, N10276, N06625, Alloy 825) and carbon/alloy steel grades are available.

Q: What size range and lengths can you supply?

Typical heat exchanger tube range is OD 3.0–20.0 mm and WT 0.5–2.0 mm. Length can be supplied up to around 32 m depending on grade and mill practice. Share your required OD/WT/length in the RFQ.

HOME > PRODUCTS > H.X. Tube & Pipe

H.X. Tube & Pipe

H.X. Tube	U Bending Tube	Finned Tube	Instrument Tube
Pre-insulated Tubing Bundle	Precise Tube	SMLS Coil Tube	Pipe

Heat Exchanger Tube

Seamless Heat Exchanger Tubes for boiler and condenser service — from a seamless tube Korea factory supporting export supply. Typical standards include ASTM A213 / A269 with materials from stainless and duplex to high alloys, plus inspection options and MTC documentation for export projects. Common applications include condenser tube, boiler water wall tube, and air cooler tube service. For material-focused RFQs, we often quote ASTM A213 TP316L tube, duplex S32205 seamless tube, and Incoloy 825 heat exchanger tube. If you are searching for an ASTM A213 supplier or checking heat exchanger tube price, share your OD/WT/length and delivery terms so we can respond quickly.

Standards	ASTM / ASME / JIS (typical: A/SA179, A/SA192, A/SA213, A/SA269)
Materials	304/304L, 316/316L, duplex (S31803/S32205/S32750), alloys (904L, N10276, N06625, Alloy 825)
Size range	Tube: OD 3.0–20.0 mm, WT 0.5–2.0 mm (max length 32 m)
Inspection	ECT / Hydro / PMI / NDT options by request
Documents	MTC (EN 10204 3.1 / 3.2) and traceability support

Grades & equivalents

Use this section to quickly confirm whether your target material is available. If you have an equivalent code (EN/JIS/ASTM), include it in your RFQ.

Stainless	304/304L 316/316L 904/904L 321 317 410 310 347
Duplex	S31803 / S32205 S32750 EN 1.4462 EN 1.4410
Nickel alloys	Alloy 825 (N08825) 625 (N06625) C276 (N10276)
Equivalents	EN / JIS / ASTM equivalents can be reviewed upon request (share your project spec and environment).

Note: Availability depends on OD/WT/length and mill sourcing. Tell us service (steam/cooling, chloride, H2S) if applicable.

Quality & inspection

Dimensional / visual inspection (OD/WT/length)
ECT / Hydro / PMI and NDT scope by project spec
Traceability with heat number marking and MTC support

Packaging & delivery

Export packing: bundle / wooden case (by request)
Length options: fixed length or project cut length (as specified)
Share destination port, Incoterms and target date in your RFQ

Request a quotation (RFQ)

Please include OD, WT, length, material/grade, standard, quantity and delivery destination. We will respond with lead time and inspection scope.

Contact / RFQ

Do you provide MTC (EN 10204 3.1 / 3.2)?

Yes. MTC documentation (EN 10204 3.1 / 3.2) is available by request, with traceability information.

Which standards do you support for heat exchanger tubes?

We support major standards such as ASTM, ASME and JIS. Typical items include A/SA179, A/SA192, A/SA213, and A/SA269 depending on requirements.

What inspections can be provided?

Inspection scope depends on order and standard. Typical tests include ECT, hydrostatic test, PMI and other NDT options.

What materials are available?

Stainless (304/304L, 316/316L), duplex (S31803/S32205/S32750), nickel alloys (825/625/C276) and other grades can be reviewed by request.

What size range and lengths can you supply?

Typical range is OD 3.0–20.0 mm and WT 0.5–2.0 mm. Length can be supplied up to around 32 m depending on grade and mill practice. Share your OD/WT/length requirements in the RFQ.

How do you pack and deliver for export projects?

Packing can be arranged as bundles with protective end caps and export packing. Wooden cases/crates and project-specific protection can be supported by request. Include destination port, Incoterms and target date.

Application code

ASTM, ASME, AISI, DIN, JIS, KS

General size for Heat exchanger

Outer diameter	50.80mm, 31.75mm, 25.40mm, 19.05mm, 15.88mm, 12.70mm, 9.53mm, 6.35mm
Wall thickness	3.05mm, 2.77mm, 2.41mm, 2.11mm, 1.65mm, 1.24mm, 0.89mm, 0.70mm, 0.50mm

Purpose

Heat exchanger & Boiler, Condenser, Fin tube, Power plant,
Petrochemical plant(Gas, Oil and other)

Material

Stainless

304/304L, 304N, 304LN, 304H, 316/316L, 316N, 316LN, 316Ti, 310S, 321, 317/317L, 347

Martensite

410S, 420, 431

Duplex

S31803, S32205, S32750 (Super Duplex)

Alloy

B/SB338, 904/904L, N10276, N06625, B163, ALLOY825

Nonferrous metal

C68700, C44300, C26000, C60800, C70600, C71500

Carbon steel

A/SA179, A/SA192, A/SA106 ,A/SA53, T1, T5, T9, T91, T11 , T12, T21, T22, A/SA210, A/SA334, P235GH, A/SA214, A/SA178

Application code

ASTM, ASME, AISI, DIN, JIS, KS

Product
capacity

Tube : OD 3.0mm ~ 120.0mm, WT 0.5mm ~ 7.00mm, Max length 32meter

Pipe : OD 10.3mm ~ 610.0mm, WT 1.24mm ~ 59.54mm,
Max length 12meter

ASEA METAL ECT Video

Click to play (YouTube)

At ASEA METAL, we prioritize the integrity of our heat exchanger tubes. Eddy Current Testing (ECT) is a core part of our non-destructive testing (NDT) process, used to detect surface and sub-surface flaws without damaging the material.

Standard Compliance: Our ECT procedures strictly adhere to ASTM E426 (for Stainless/Nickel alloys) and ASME Section V, Article 8.
Detection Capability: We identify microscopic cracks, pits, and longitudinal defects that could lead to leakage under high-pressure conditions.
100% Inspection: Every single tube for heat exchanger bundles undergoes 100% ECT to ensure 100% reliability for our global clients.
Qualified Inspectors: All tests are performed and verified by certified NDT Level II/III technicians.

Pipe

View Pipe page

Application code

ASTM, ASME, AISI, DIN, JIS, KS

General size for Pipe

Outer diameter	OD 10.3mm ~ 610.0mm
Wall thickness	WT 1.24mm ~ 59.54mm
Max length	12meter

Purpose

Process piping, industrial piping, heat exchanger and boiler piping, Petrochemical plant (Gas, Oil and other), power plant, water/utility lines

Material

Stainless	ASTM A312 TP304/L, TP316/L, TP321, TP347 (typ.)
Duplex	S31803, S32205, S32750
Carbon steel	ASTM A106 Gr.B/C, ASTM A53, ASTM A333, ASTM A335
Nickel alloy	Alloy 625, Alloy 825, Hastelloy (on request)
Nonferrous	Cu-Ni, Copper, Aluminum (on request)

ASEA METAL TECHNICAL DATA : Global Tube Standards & Testing

We manufacture seamless heat exchanger tubing in Korea with a mill workflow built for export projects. For corrosion service, 316L (2.5% Mo) is a common choice, supplied to ASTM A213 TP316L as specified. We also support ASTM A213 TP304L and ASTM A269 TP316L depending on the tube application and project spec. Inspection options such as ECT and PMI can be aligned to your ITP along with MTC (EN 10204 3.1 / 3.2). As a Korean tube mill, we confirm OD/WT, length, and release documents before shipment.

International Specification Scope

Standard	Technical Definition & Application Scope
ASTM A210	Seamless Medium-Carbon Steel Boiler and Superheater Tubes.
ASTM A179	Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes.
ASTM A192	Seamless Carbon Steel Boiler Tubes for High-Pressure Service.
EN 10216-2 (P235GH)	Non-alloy steel tubes for pressure purposes (Elevated Temperature Service).
ASTM A178	Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes.
ASTM A214	Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser Tubes.
ASTM A106/A53	Seamless & Welded Carbon Steel Pipe for High-Temperature Service.
ASTM A213/A269	Seamless Ferritic/Austenitic Alloy-Steel Boiler and Heat-Exchanger Tubes.
ASTM A249	Welded Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes.
ASTM A312/A334	Seamless/Welded Stainless Steel Pipes and Low-Temp Service Tubes.
ASTM A789	Seamless and Welded Duplex Stainless Steel Tubing (General Service).
ASTM A268 / A312	Seamless/Welded Ferritic (410S) & Austenitic Stainless Steel (904L) Tubing.
ASTM B163 / B622	Nickel and Nickel Alloy (Alloy 825, N06625, N10276) Condenser and Heat-Exchanger Tubes.
ASTM B111	Copper and Copper-Alloy (Brass, Cu-Ni, Al-Bronze) Seamless Condenser Tubes.
ASTM B338 / SB338	Seamless and Welded Titanium and Titanium Alloy Tubes for Surface Condensers.

Quality Control & Inspection Standards

Test Item	Applied Code	Description
Flaring Test	ASTM E370	Testing the ductility of the tube by expanding the end over a cone.
Eddy Current Test (ECT)	ASTM E426 / E243	Electromagnetic testing for surface and sub-surface flaws in tubing.
Hydrostatic Test	ASTM A450 / B111	Pressure testing to ensure leak-free integrity under high stress.
Grain Size Test	ASTM E112	Estimating the average grain size of metals to ensure mechanical consistency.
Mercurous Nitrate Test	ASTM B154	Testing for residual stress in copper alloys to prevent stress corrosion cracking (SCC).
Cathodic Oxide Test	ASTM B828 / ISO 7384	Evaluation of oxide layer quality and surface cleanliness for corrosion resistance.

Chemical Composition

Material Group	Grade / UNS No.	C	Mn	Si	P / S (Max)	Cr	Ni	Mo	Other
Carbon Steel	A210 Gr. A-1	≤0.27	≤0.93	≥0.10	0.035 / 0.035	-	-	-	-
Carbon Steel	A210 Gr. C	≤0.35	0.29-1.06	≥0.10	0.035 / 0.035	-	-	-	-
Stainless Steel	TP304 (S30400)	≤0.08	2.00	0.75	0.045 / 0.03	18.0-20.0	8.0-11.0	-	N:0.10
	TP316L (S31603)	≤0.03	2.00	0.75	0.045 / 0.03	16.0-18.0	10.0-14.0	2.0-3.0	N:0.10
	410S (S41008)	≤0.08	1.00	1.00	0.04 / 0.03	11.5-13.5	≤0.60	-	-
	904L (N08904)	≤0.02	2.00	1.00	0.04 / 0.03	19.0-23.0	23.0-28.0	4.0-5.0	Cu:1.2-2.0
	S32205 (Duplex)	≤0.03	2.00	1.00	0.03 / 0.02	22.0-23.0	4.5-6.5	3.0-3.5	N:0.14-0.20
	S32750 (Super)	≤0.03	1.20	0.80	0.03 / 0.01	24.0-26.0	6.0-8.0	3.0-5.0	N:0.24-0.32
Nickel Alloy	N10276 (C-276)	≤0.01	1.00	0.08	0.04 / 0.03	14.5-16.5	Balance	15.0-17.0	W:3.0-4.5
	N06625 (Alloy 625)	≤0.10	0.50	0.50	0.015	20.0-23.0	≥58.0	8.0-10.0	Nb:3.15-4.15
	N08825 (Alloy 825)	≤0.05	1.00	0.50	0.03	19.5-23.5	38.0-46.0	2.5-3.5	Cu:1.5-3.0
Copper Alloy	C44300 (Adm.)	Cu: 70.0-73.0 / Sn: 0.9-1.2				-	-	-	As: 0.02-0.06
	C68700 (Al-Brass)	Cu: 76.0-79.0 / Al: 1.8-2.5				-	-	-	As: 0.02-0.06
	C26000 (Brass)	Cu: 68.5-71.5 / Zn: Rem.				-	-	-	Fe: ≤0.05
	C60800 (Al-Brz)	Cu: Rem / Al: 5.0-6.5				-	-	-	As: 0.02-0.35
	C70600 (90/10)	≤0.05	1.0(Mn)	-	-	-	9.0-11.0	-	Fe: 1.0-1.8
	C71500 (70/30)	≤0.05	1.0(Mn)	-	-	-	29.0-33.0	-	Fe: 0.4-1.0

Mechanical Properties

Material Group	Grade / UNS No.	TS (MPa)	YS (MPa)	EL (%)	Hardness (Max)
Carbon Steel	A210 Gr. A-1	≥ 415	≥ 255	30	143 HB / 79 HRB
Carbon Steel	A210 Gr. C	≥ 485	≥ 275	30	179 HB / 89 HRB
Stainless Steel	TP304 / 316	≥ 515	≥ 205	35	192 HB / 90 HRB
	410S (S41008)	≥ 415	≥ 205	22	89 HRB
	904L (N08904)	≥ 490	≥ 220	35	90 HRB
	S32205 (Duplex)	≥ 655	≥ 450	25	290 HB / 31 HRC
	S32750 (Super)	≥ 795	≥ 550	15	310 HB / 32 HRC
	TP321 / 347	≥ 515	≥ 205	35	192 HB / 90 HRB
Nickel Alloy	N10276 (C-276)	≥ 690	≥ 283	40	100 HRB
	N06625 (Alloy 625)	≥ 827	≥ 414	30	25 HRC
	N08825 (Alloy 825)	≥ 586	≥ 241	30	90 HRB
Copper Alloy	C26000 (Cartridge)	≥ 300	≥ 105	40	-
Copper Alloy	C44300 (Admiralty)	≥ 310	≥ 105	35	-

Dimensional Tolerances (by Material Standard)

Material Group	Applied Code	Outside Diameter (OD)	Wall Thickness (WT)	Length Tolerance
Steel Tubes (Carbon/Stainless)	ASTM A450 / A1016	• ≤ 25.4mm : ± 0.10mm • 25.4~38.1 : ± 0.15mm • 38.1~50.8 : ± 0.20mm	Seamless: +20% / -0% Welded: ± 10%	≤ 5.8M: +3.2 / -0mm > 5.8M: +4.8 / -0mm
Nickel (Hastelloy) & Titanium	ASTM B163 / B338	• OD ≤ 38.1 : ± 0.10mm • OD > 38.1 : ± 0.13mm	± 10% of Average WT (or Min. WT basis)
Copper Alloy (Cu-Ni, Brass)	ASTM B111 / B251	• ≤ 15.9mm : ± 0.05mm • 15.9~25.4 : ± 0.08mm • 25.4~50.8 : ± 0.13mm	± 10% of Specified WT

Carbon Equivalent (CE) & NACE Compliance

Technical Aspect	Applied Code / Requirement	Technical Definition & Application Scope
Carbon Equivalent (CE)	ASTM A106 / A333 CE = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15	Standard Limit: Typically ≤ 0.43% (or per customer spec). Purpose: Evaluates weldability and prevents Heat Affected Zone (HAZ) cracking. Application: Critical for high-pressure carbon steel pipes.
NACE Compliance (Sour Service)	NACE MR0175 / ISO 15156 NACE MR0103	Hardness Control: Maximum 22 HRC for sour service environments. Resistance: Resistant to HIC (Hydrogen-Induced Cracking) and SSC (Sulfide Stress Cracking).

Technical Specifications for Lot Control, Heat Treatment & Marking

Category	Technical Standard / Code	Specific Requirements & Quality Assurance
Lot Formation & Inspection Unit	ASTM A1016 / A213 (Inspection Lot Definition)	Lot Size: For tubes with OD ≤ 2" (50.8mm), one lot consists of max. 125 tubes. For OD > 2", max. 50 tubes. Homogeneity: All tubes in a lot must be of the same size, same Heat (Melt), and processed in the same heat-treatment charge. Sampling: Destructive tests (Flattening, Flaring, Tensile) are performed on a representative sample from each lot unit.
Heat Treatment (Solution Annealing)	Austenitic Stainless Steel (ASTM A213 / ASME SA213)	Temperature: Minimum 1900°F (1040°C) to ensure full dissolution of chromium carbides. Quenching: Rapid cooling to prevent Intergranular Corrosion (IGC) and avoid the 450°C - 850°C sensitization range. Verification: Hardness testing and Grain Size measurement (ASTM E112) required for each heat-treated batch.
Marking & Identification	Full Product Traceability (Continuous Stenciling)	Mandatory Info: Brand Name, ASTM A213, Grade, SMLS, Size (OD x WT), Heat No., Lot No., and NH (Non-Destructive Tested). Layout: Continuous marking at 3ft (1m) intervals for the entire length of the tube as per ASTM A1016. Compliance: Complete consistency between physical marking and Mill Test Certificate (EN 10204 3.1).

Technical Specifications for ASTM A312 / ASME SA312 Pipes

Category	Technical Standard / Code	Buyer's Critical Check-points & Requirements
Manufacturing Process	Seamless (SMLS) vs. Welded (WLD)	Seamless: Hot-finished or Cold-finished without welding. Preferred for critical high-pressure services. Welded: Automatic welding process without filler metal. 100% Weld Seam integrity is mandatory. Condition: All pipes are supplied in the Solution Annealed and Pickled (White acid finish) condition.
Corrosion Testing (Special Request)	IGC Test (ASTM A262) (Practice A, C, or E)	Requirement: Essential for TP304L/316L used in corrosive chemical environments. Standard: Conducted per ASTM A262 Practice E (Strauss Test) to detect intergranular attack. Certification: Test results are explicitly stated in the MTC (Mill Test Certificate) for Buyer's approval.
Non-Destructive Testing (NDT)	Hydrostatic or Eddy Current / UT	Hydrostatic Test: Performed per ASTM A1016 to verify pressure-retaining capability. Eddy Current (ECT): 100% ECT for standard sizes to detect surface and sub-surface defects. Ultrasonic (UT): Available for heavy-wall pipes or specific project requirements (ASME Section V).
Dimensional Tolerances	ASTM A999 / ASME B36.19	Wall Thickness: Minimum wall thickness must not be more than 12.5% below the nominal thickness. Outside Diameter: Strict adherence to B36.19 Schedules (Sch 10S, 40S, 80S, etc.). Surface Quality: Free from scale and injurious defects; visual inspection and roughness control applied.

Pipe Identification Color Code (Fluid Service - ASME A13.1)

Fluid Category	Identification Color	Letter Color	Examples & Remarks
Fire Quenching	Red	White	Fire water, Sprinkler systems
Toxic & Corrosive	Orange	Black	Acids, Alkalis, Chemical lines
Flammable Fluids	Yellow	Black	Natural Gas, Fuel Oil, Steam
Potable / Cooling	Green	White	Cooling water, Fresh water
Compressed Air	Blue	White	Instrument & Plant Air lines

Material Identification & Grade Color Chart (PFI ES-22 Reference)

Material Category	ASTM / ASME Grade	Marking Color	Technical Remarks
Carbon Steel	A106-B / A53-B / A179	White	Standard pressure service.
Low Temp Steel	ASTM A333 Gr. 6	Red	Cryogenic service down to -45°C.
Alloy Steel	ASTM A335 P11 / P12	Blue	High-temp 1.25Cr-0.5Mo steel.
Alloy Steel	ASTM A335 P22 / P5	Blue / Yellow stripe	High-temp 2.25Cr-1Mo steel.
Stainless Steel	TP304 / 304L	Yellow	General corrosion resistance.
	TP316 / 316L	Green	Marine & Chemical service.
	TP321 / 347 / 310S	Pink	High-temp stabilized stainless.
Duplex Steel	S31803 / S32205 / S32750	Purple	Superior strength & Cl- resistance.
Nickel Alloy	Inconel 625 / Monel 400	Grey / Silver	Extreme heat & acid resistance.

* Note: Material color coding is applied to pipe ends (End Face) for traceability. Standards may vary by project specification.

Surface Treatment & Finishing Spec

Process	Technical Standard	Technical Specification & Requirements
Pipe Shot Blasting	ISO 8501-1 Sa 2.5	Surface Prep: Near-White Metal Blast Cleaning to remove rust and scale. Roughness: Surface profile maintained between 40-75 microns for coating. Abrasive: High-quality steel shot/grit used to ensure a clean, oil-free surface.
Surface Painting / Coating	SSPC-PA2 / RAL Std.	Coating: Epoxy, Zinc-rich primer, or Anti-corrosive oil as per client spec. Inspection: 100% DFT (Dry Film Thickness) measurement and adhesion test. Finish: Uniform application by airless spray to prevent runs or sags.
Grinding & Beveling	ASME B16.25	Beveling: Precise end preparation (30°/37.5°) for welding integrity. Surface Finish: Grinding of weld seams and surface defects for a smooth finish. No-Contamination: Dedicated tools used for Stainless/Duplex to prevent carbon pick-up.

Equivalent Material Specifications (ASTM vs DIN / EN / JIS)

I. Carbon Steel Boiler and Heat Exchanger Tubes

ASTM / ASME	DIN	EN	JIS	TS(min) (MPa)	YS(min) (MPa)	EL(min) (%)	HARDNESS (max/HRB)
ASTM A178 Gr.A	DIN St 35.8	EN P235GH	JIS STB 340	325	180	35	75
ASTM A178 Gr.C	DIN St 45.8	EN P265GH	JIS STB 410	415	255	30	85
ASTM A178 Gr.D	DIN St 52.0	EN 19Mn5	JIS STB 510	485	275	25	89
ASTM A179	DIN St 35.8	EN P235GH	JIS STB 340	325	180	35	72
ASTM A192	DIN St 35.8	EN P235GH	JIS STB 340	325	180	35	75
ASTM A210 Gr.A1	DIN St 45.8	EN P265GH	JIS STB 410	415	255	30	85
ASTM A210 Gr.C	DIN St 52.0	EN 19Mn5	JIS STB 510	485	275	30	89

II. Alloy Steel Boiler and Heat Exchanger Tubes

ASTM / ASME	DIN	EN	JIS	TS(min)	YS(min)	EL(min)	HARDNESS (max/HRB)
ASTM A209 T1	DIN 15Mo3	EN 16Mo3	JIS STBA 12	380	205	30	79
ASTM A209 T1a	DIN 15Mo3	EN 16Mo3	JIS STBA 12	415	220	30	81
ASTM A213 T2	10CrMo5-5	11CrMo5-5	JIS STBA 20	415	205	30	85
ASTM A213 T5	12CrMo19-5	X11CrMo5	JIS STBA 25	415	205	30	85
ASTM A213 T9	X12CrMo9-1	X11CrMo9-1	JIS STBA 26	415	205	30	89
ASTM A213 T11	13CrMo4-4	13CrMo4-5	JIS STBA 23	415	205	30	85
ASTM A213 T12	15CrMo5	13CrMo4-4	JIS STBA 22	415	220	30	85
ASTM A213 T22	10CrMo9-10	10CrMo9-10	JIS STBA 24	415	205	30	85
ASTM A213 T91	X10CrMoVNb9-1	X10CrMoVNb9-1	-	585	415	20	98
ASTM A213 T92	-	X10CrWMoVNb9-2	-	620	440	20	99

III. Stainless Steel Tubes and Pipes

ASTM / AISI	DIN	EN	JIS	TS(min)	YS(min)	EL(min)	HARDNESS (max/HRB)
AISI 304	1.4301	1.4301	SUS 304	515	205	40	92
AISI 304L	1.4306	1.4307	SUS 304L	485	170	40	92
AISI 304H	1.4948	1.4948	SUS 304H	515	205	40	92
AISI 316	1.4401	1.4401	SUS 316	515	205	40	92
AISI 316L	1.4404	1.4404	SUS 316L	485	170	40	92
AISI 316Ti	1.4571	1.4571	SUS 316Ti	515	205	40	92
AISI 321	1.4541	1.4541	SUS 321	515	205	40	92
AISI 321H	1.4878	1.4941	SUS 321H	515	205	40	92
AISI 347	1.4550	1.4550	SUS 347	515	205	40	92
AISI 310S	1.4845	1.4845	SUS 310S	515	205	40	95
AISI 904L	1.4539	1.4539	SUS 890L	490	215	35	90

IV. Duplex and Super Duplex Stainless Steel

ASTM / UNS	DIN	EN	JIS	TS(min)	YS(min)	EL(min)	HARDNESS (max)
UNS S31803	1.4462	1.4462	SUS 329J3L	620	450	25	30 (HRC)
UNS S32205	1.4462	1.4462	SUS 329J3L	655	450	25	30 (HRC)
UNS S32750	1.4410	1.4410	SUS 329J4L	795	550	15	32 (HRC)

V. Steel Pipes and Tubes for Low Temperature Service

ASTM / ASME	DIN	EN	JIS	TS(min)	YS(min)	EL(min)	HARDNESS (max/HRB)
ASTM A333 Gr.1	TTSt 35N	P215NL	STPL 380	380	205	35	-
ASTM A333 Gr.6	TTSt 35V	P265NL	STPL 450	415	240	30	-
ASTM A334 Gr.1	TTSt 35N	P215NL	STBL 380	380	205	35	75
ASTM A334 Gr.6	TTSt 35V	P265NL	STBL 450	415	240	30	85

VI. Nickel and Nickel Alloys

Common Name	DIN	EN	UNS No.	TS(min)	YS(min)	EL(min)	HARDNESS (max/HRB)
Alloy 200	2.4066	Ni 99.2	UNS N02200	380	105	40	70
Alloy 400	2.4360	NiCu30Fe	UNS N04400	480	195	35	75
Alloy 600	2.4816	NiCr15Fe	UNS N06600	550	240	30	88
Alloy 625	2.4856	NiCr22Mo9Nb	UNS N06625	827	414	30	25 (HRC)
Alloy 800	1.4876	X10NiCrAlTi32-20	UNS N08800	520	205	30	85
Alloy 825	2.4858	NiCr21Mo	UNS N08825	585	240	30	90
Alloy C-276	2.4819	NiMo16Cr15W	UNS N10276	690	283	40	100

13. Automatic Weight Calculator of Tube and Pipe

Input Specification

Material Type:

Wall Thickness Tolerance:

Outer Diameter (O.D) - mm:

Wall Thickness (W.T) - mm:

Length per Tube - mm:

Quantity (PCS):

CALCULATION RESULT

UNIT WEIGHT (kg/m)

0.000

UNIT WEIGHT (kg/pcs)

0.000

TOTAL GROSS WEIGHT (kg)

0.000

* MW calculation includes
standard 20% weight factor.

Inspection & Quality Control Flow

Stage	Inspection & Quality Control Activities
Raw Material	Verification of Mill Test Certificate (MTC) → Visual Inspection → Dimensional Check → PMI Test (Positive Material Identification)
In-Process	Cold Drawing/Rolling Process Control → Heat Treatment (Bright Annealing / Solution Annealing) → Straightening
Non-Destructive	Eddy Current Test (ET) → Ultrasonic Test (UT) → Hydrostatic Pressure Test (100% testing to ensure no leaks)
Destructive	Tensile Test → Flattening Test → Flaring/Expansion Test → Hardness Test → Microstructure Analysis → Corrosion Test
Final Inspection	Final Dimensional Check (OD, WT, Length) → Visual Surface Inspection → Stenciling/Marking → Packing & Shipping

Technical Comparison: ASTM A213 vs. ASTM A312

Category	ASTM A213 (Boiler/Heat Exchanger Tube)	ASTM A312 (Process Pipe)
Size Standard	Based on Actual Outside Diameter (OD) and Minimum Wall Thickness.	Based on Nominal Pipe Size (NPS) and Schedule (SCH) numbers.
Dimensional Tolerance	Very Strict. High precision required for OD and Wall Thickness to fit into tube sheets.	Standard. More generous tolerances allowed as it is used for general fluid transport.
Mandatory Testing	Flaring, Flattening, Hardness, and Hydrostatic or NDT (ET/UT) are mandatory for every tube.	Flattening, Bending, and Hydrostatic or NDT. Hardness is usually optional unless specified.
Wall Thickness Policy	Usually Minimum Wall Thickness (No negative tolerance allowed).	Usually Nominal Wall Thickness (Allows ±12.5% variation).
Heat Treatment	Mandatory solution annealing for all grades to ensure mechanical properties.	Required, but some specific conditions or "As-Welded" grades may exist in other pipe standards.

Technical Comparison: ASTM A213 vs. ASTM A269 (Comprehensive)

Comparison Point	ASTM A213 (Boiler/Heat Exchanger Tube)	ASTM A269 (General Service Tubing)
Full Title	Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.	Seamless and Welded Austenitic Stainless Steel Tubing for General Service.
Manufacturing	Seamless only. Welded types are strictly prohibited in A213.	Seamless or Welded. Both types are covered under this standard.
Mechanical Test (Tension)	Mandatory. Every lot must pass TS/YS/EL tests as per A1016.	Not mandatory. Usually not required unless explicitly specified by the buyer.
Hardness Test	Mandatory for all grades. Strict limits for Ferritic and Austenitic steels.	Required, but limits are generally more generous compared to A213.
Wall Thickness Policy	Minimum Wall (MW) is standard. Allows 0% negative tolerance.	Nominal/Average Wall (AW) is standard. Variations (+/-) are permitted.
ASME Compliance	Fully compatible as SA213 (ASME Section II). Approved for pressure vessels.	No SA269 equivalent. ASME Section II does not recognize A269 for code use.

Technical Comparison: ASTM A213 vs. ASTM A249 (Comprehensive)

Comparison Point	ASTM A213 (Boiler/Heat Exchanger Tube)	ASTM A249 (Welded Austenitic SS Tubes)
Full Title	Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.	Welded Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes.
Manufacturing	Seamless only. Welded types are not permitted in A213.	Welded only. Intended for welded austenitic stainless tubing.
Weld Seam	Not applicable (seamless).	Weld seam quality is a key requirement; welded tube inspection/qualification is required.
Mechanical Test (Tension)	Mandatory. Every lot must pass TS/YS/EL tests as per A1016.	Required per A249 requirements (including test frequency and acceptance criteria defined by the standard).
NDE / Leak Test	NDE and/or hydro per A1016 / purchase spec (ECT/UT/HT etc. project dependent).	Typically requires NDE for welded tubing (e.g., weld seam examination and leak test such as hydro/air-under-water or other permitted methods).
Wall Thickness Policy	Minimum Wall (MW) is standard. Allows 0% negative tolerance.	Welded tube tolerance rules apply per A249; purchasing typically specifies OD/WT and inspection level.
Typical Use	Critical boiler/HRSG and heat exchanger service where seamless construction is required.	Heat exchanger and condenser service where welded austenitic stainless tubing is acceptable/standard.
ASME Compliance	Fully compatible as SA213 (ASME Section II). Approved for pressure vessels.	Commonly referenced as SA249 for ASME applications depending on code/purchase specification.

MTC (Material Test Certificate) Sample - EN 10204 3.1

ASEA METAL provides the Material Test Certificate (MTC) according to EN 10204 3.1 (or 3.2 upon request). Our certificates include full traceability, chemical analysis, mechanical properties, and NDE results for every heat number delivered.

(Sample Image of ASEA METAL Material Test Certificate)

Customer Information & P.O. Number
Product Description & Specification
Heat Number & Lot Identification
Chemical Analysis (C, Mn, P, S, Si, Cr, Ni, Mo, etc.)

Mechanical Tests (Tensile, Yield, Elongation)
Technological Tests (Flattening, Flaring, Hardness)
NDE (Eddy Current, UT, Hydro-test) Results
Inspector's Signature & Quality Stamp

Additional Services & Inspection

Positive Material Identification (PMI): On-site alloy verification by XRF/OES analyzers.
Third-Party Inspection (TPI): Coordination with Lloyd's, BV, DNV, ABS, SGS, and TUV.
Export Packaging: Sea-worthy wooden cases, steel frames, and vacuum/VCI packing available.
Color Coding: Customized color banding and specific stencil marking per project standards.
Documentation: Full traceability with Mill Test Certificates (MTC) per EN 10204 3.1 or 3.2.

[Technical Reference & Global Supply Scope]

Quick reference (summary)
ASEA METAL manufactures and supplies tubes and pipes in Korea for global projects, with scope aligned to customer specifications and ITP requirements.
Typical standards include ASTM / ASME A/SA213, A/SA269, A/SA312 and A/SA790 (plus project-specific standards on request).
Materials commonly cover 304/304L, 316/316L, 317L, 321, 347, 310S and 410, as well as duplex grades (S31803/S32205/S32750) and 904L; nickel alloys and titanium can be reviewed when required.
Services include U-bending, SMLS coil tube, finned tube, instrument tubing, heat treatment, pickling & passivation, and export packing.
Quality and documents support MTC (EN 10204 3.1/3.2), PMI, ECT/UT, hydrostatic test and third-party inspection (on request).

Standards & testing reference: ASTM E370 flaring test procedure, ASTM E426 eddy current testing for stainless steel, A210 Grade A1 yield strength, A210 Grade C tensile properties, tube OD tolerance per ASTM A450, hardness comparison (HRB, HB, HRC), ASEA METAL Japan (Yamanashi), NST / TNB METAL quality control.