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SSAW Pipe Standards, API SSAW Pipe, ASTM SSAW Pipe, EN SSAW Pipe,

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SSAW Pipe Standards: API/ASTM/EN

Date:2026-02-26

SSAW steel pipes (Spiral Submerged Arc Welded Pipe) are widely used in oil and gas transportation, water supply and drainage, foundation piling, and structural engineering. Different projects typically procure and accept pipes according to different international standards.

This article systematically organizes the mainstream SSAW pipe standard systems, including:

API Standards (Core for Oil and Gas Pipelines)

ASTM Standards (Structural and General Engineering)

EN Standards (European Pressure and Structural Systems)

API Standard SSAW Pipes

The raw materials for SSAW steel pipes include steel coils, welding wire, and flux. All raw materials must undergo rigorous physical and chemical testing before being put into use.

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
		C	Si	Mn	P	S	Tensile Strength(Mpa)	Yield Strength(Mpa)
API 5L PSL1	A	0.22	–	0.9	0.03	0.03	335	335
	B	0.26	–	1.2	0.03	0.03	415	415
	X42	0.26	–	1.3	0.03	0.03	415	415
	X46	0.26	–	1.4	0.03	0.03	435	435
	X52	0.26	–	1.4	0.03	0.03	460	460
	X56	0.26	–	1.4	0.03	0.03	490	490
	X60	0.26	–	1.4	0.03	0.03	520	520
	X65	0.26	–	1.45	0.03	0.03	535	535
	X70	0.26	–	1.65	0.03	0.03	570	570
API 5L PSL2	B	0.22	0.45	1.2	0.025	0.015	415	415
	X42	0.22	0.45	1.3	0.025	0.015	415	415
	X46	0.22	0.45	1.4	0.025	0.015	435	435
	X52	0.22	0.45	1.4	0.025	0.015	460	460
	X56	0.22	0.45	1.4	0.025	0.015	490	490
	X60	0.12	0.45	1.6	0.025	0.015	520	520
	X65	0.12	0.45	1.6	0.025	0.015	535	535
	X70	0.12	0.45	1.7	0.025	0.015	570	570
	X80	0.12	0.45	1.85	0.025	0.015	625	625

Compared to PSL1, PSL2 has lower impurities, requires impact testing, has a more stringent NDT (Neutral Threat Test), and is more suitable for high-pressure long-distance pipelines.

ASTM Standard SSAW Pipe

The raw materials for SSAW steel pipe include steel coils, welding wire, and flux. All raw materials must undergo rigorous physical and chemical testing before being put into use.

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
		C	Si	Mn	P	S	Tensile Strength(Mpa)	Yield Strength(Mpa)
ASTM A53	A	0.25	0.1	0.95	0.05	0.045	330	330
	B	0.3	0.1	1.2	0.05	0.045	415	415
ASTM A252	1	–	–	–	0.05	–	345	345
	2	–	–	–	0.05	–	414	414
	3	–	–	–	0.05	–	455	455

EN Standard SSAW Pipes

The raw materials for SSAW steel pipes include steel coils, welding wire, and flux. All raw materials must undergo rigorous physical and chemical testing before being put into use.

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
EN10217-1	P195TR1	0.13	0.35	0.7	0.025	0.02	320	320
	P195TR2	0.13	0.35	0.7	0.025	0.02	320	320
	P235TR1	0.16	0.35	1.2	0.025	0.02	>360	>360
	P235TR2	0.16	0.35	1.2	0.025	0.02	>360	>360
	P265TR1	0.2	0.4	1.4	0.025	0.02	410	410
	P265TR2	0.2	0.4	1.4	0.025	0.02	410	410
EN10217-2	P195GH	0.13	0.35	0.7	0.025	0.02	320	320
	P235GH	0.16	0.35	1.2	0.025	0.02	>360	>360
	P265GH	0.2	0.4	1.4	0.025	0.02	410	410
EN10217-5	P235GH	0.16	0.35	1.2	0.025	0.02	>360	>360
	P265GH	0.2	0.4	1.4	0.025	0.02	410	410
EN10219-1	S235JRH	0.17	–	1.4	0.04	0.04	>360	>360
	S275JOH	0.2	–	1.5	0.035	0.035	410	410
	S275J2H	0.2	–	1.5	0.03	0.03	410	410
	S355JOH	0.22	0.55	1.6	0.035	0.035	470	470
	S355J2H	0.22	0.55	1.6	0.03	0.03	470	470
	S355K2H	0.22	0.55	1.6	0.03	0.03	470	470

FAQ

1. What are the most commonly used API grades for SSAW pipe?

The most common are: API 5L X42, API 5L X52, and API 5L X60.

X52 is the most widely shipped spiral pipe grade globally.

2. Can SSAW pipe be used for high-pressure oil and gas?

Yes, but it must meet the following requirements: API 5L PSL2, qualified welding process (SAW), 100% NDT, and hydrostatic testing.

For ultra-high pressure or subsea projects, LSAW pipe or seamless pipe is sometimes preferred.

Summary

The selection of SSAW steel pipe standards should be application-oriented: API 5L is preferred for oil and gas transportation, ASTM A252 is commonly used for foundation engineering, and EN10217 (pressure) or EN10219 (structural) is used for European projects. Correctly matching standards, steel grades, and quality requirements is crucial to ensuring safe pipeline operation and successful project delivery.

Prev : SSAW Steel Pipe Sizes
Next : API 5L LSAW Steel Pipe: PSL1 vs. PSL2

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