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SSAW Pipe | EN 10219 S355J2H Spiral Welded Steel Pipe for Structural & Piling

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Categories	en 10219 pipe
Brand	Cangzhou Spiral Steel Pipe Manufacturers
Product Specifications	S355j2h Pipe-01
TRADE TERM	FOB CFR CIF
Special Pipe	API Pipe, Other, EMT Pipe, Thick Wall Pipe
Section Shape	Round
Name	EN 10219 S355j2h SSAW Steel Pipe
Standard	EN 10219
Technique	SSAW
Oiled or Non-oiled	Non-oiled
Processing Service	Welding, Punching, Cutting, Bending, Decoiling
Length	12M, 6m, 6.4M,1-30M OR CUSTOM
Certificate	API 5L, CE, JIS, ISO9001,CNAS,BV,ETC.
Ends	1.Plain End2. Beveled
Material	S355j2h
FOB port	Tianjin port
Terms of Payment	L/C, T/T

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Detail Information

SSAW Pipe | EN 10219 S355J2H Spiral Welded Steel Pipe for Structural & Piling

High-strength spiral welded steel pipe for foundation piling and structural frameworks. Manufactured to EN 10219 S355J2H, with 100% weld seam inspection and mill test certification to EN 10204 3.1. In-house CNAS-accredited laboratory for direct testing and faster turnaround.

The Pipe

SSAW Pipe | EN 10219 S355J2H Spiral Welded Steel Pipe for Structural & Piling is a spiral submerged arc welded pipe formed from hot-rolled steel strip, helically shaped and welded inside and out along the spiral seam to produce a large-diameter section with uniform strength and a continuous, easily inspected weld. Made to grade S355J2H under EN 10219, it offers a minimum yield strength of 355 MPa, Charpy impact testing at -20 °C (the "J2" designation), suitability for cold-formed structural hollow sections, and good weldability and toughness for structural and piling duty—meeting the chemical and mechanical requirements of that standard when specified for structural hollow sections or piling.

Specifications

Parameter	Range
Standard	EN 10219-1 / -2
Grade	S355J2H
Outside Diameter	610 mm – 1422 mm (standard range; confirm for your order，Larger diameters up to 3620 mm available on request)
Wall Thickness	5 mm – 14.2 mm
Length	12 m stock; other lengths available on request（1-30m WuZhou Capacity）
Weld Type	Spiral Submerged Arc Welded (SSAW)
Weld Inspection	100% tested
Impact Test	Charpy V-notch at -20 °C
Certificate	EN 10204 3.1
Marking	CE marking to EN 10219
Dimensional tolerances according to EN 10219-2. Custom diameters, wall thicknesses, and lengths available. Contact us with your specification.

Dimensional Tolerances (EN 10219-2)

Characteristic	Tolerance	Applicable Condition
Outside Diameter (D)	± 1%, minimum ± 0.5 mm, maximum ± 10 mm	Round tube universal
Wall Thickness (T)	±10%	D ≤ 406.4 mm，T ≤ 5 mm
	±0.5 mm	D ≤ 406.4 mm，T > 5 mm
	± 10%, maximum 2 mm	D > 406.4 mm
Length	+50 mm / -0 mm	Accurate length
Straightness	0.20% of total length	Round tube universal
Out-of-Roundness (O)	2%	D/T ≤ 100
Mass per Unit Length	±6%	Single length
For the OD range listed on this page (610–1422 mm), wall thickness tolerance is ±10% with a maximum of 2 mm, per EN 10219-2.

For D/T > 100, out-of-roundness tolerance to be agreed at inquiry.

Mechanical Properties & Chemical Composition

Data below per EN 10219-1 for S355J2H cold-formed hollow sections. Spiral pipe is formed from steel strip, cold-formed and welded; both base metal and weld seam must satisfy these requirements.

Chemical Composition (ladle analysis, T ≤ 40 mm)

Element	Max (%)
C (Carbon)	0.22
Si (Silicon)	0.55
Mn (Manganese)	1.60
P (Phosphorus)	0.030
S (Sulfur)	0.030
CEV (Carbon Equivalent)	0.45 (T ≤ 16 mm)
Source: EN 10219-1 limits for S355J2H. CEV limit relaxes slightly with increasing wall thickness; refer to the certificate for the confirmed value.

Mechanical Properties

Property	Requirement	Condition
Yield Strength ReH (min)	355 MPa	T ≤ 16 mm
Yield Strength ReH (min)	345 MPa	16 mm < T ≤ 40 mm
Tensile Strength Rm	470 – 630 MPa	3 mm ≤ T ≤ 40 mm
Tensile Strength Rm	510 – 680 MPa	T < 3 mm
Elongation A (min)	20%	T ≤ 40 mm, gauge L₀ = 5.65√S₀
Impact Energy KV (min)	27 J @ -20 °C	10 mm × 10 mm specimen
Source: EN 10219-1 Table A.3. For circular sections with D/T < 15, minimum elongation is reduced by 2 percentage points.

Note: Values above are EN 10219-1 requirements for the S355J2H material. Delivered pipe—both base metal and weld seam—must satisfy these. Actual values are stated in the EN 10204 3.1 certificate supplied with each order. If your project specifies a different impact test temperature or specimen size, note it in the inquiry.

Inspection Items & Requirements

The following inspection program follows EN 10219-1 for cold-formed welded hollow sections. Both base metal and weld seam of the SSAW pipe are subject to the applicable checks. Frequency and acceptance criteria per the confirmed inspection plan.

Chemical Analysis

Item	Sampling	Requirement	Reference
Ladle analysis	Ladle sample or finished pipe	S355J2H limits: C ≤ 0.22%, Si ≤ 0.55%, Mn ≤ 1.60%, P ≤ 0.030%, S ≤ 0.030%, CEV ≤ 0.45%	EN 10219-1
Product analysis	Finished pipe wall	Permissible deviations per EN 10219-1; must not exceed ladle limits plus allowable deviation	EN 10219-1

Mechanical Testing

Item	Orientation / Location	Requirement	Method
Tensile — yield	Longitudinal, base metal	ReH ≥ 355 MPa (T ≤ 16 mm); ≥ 345 MPa (16 < T ≤ 40 mm)	EN ISO 6892-1
Tensile — ultimate	Longitudinal, base metal	Rm 470 – 630 MPa	EN ISO 6892-1
Tensile — elongation	Longitudinal, gauge L₀ = 5.65√S₀	A ≥ 20% (T ≤ 40 mm)	EN ISO 6892-1
Charpy V-notch impact	Longitudinal, base metal, notch axis perpendicular to weld	KV ≥ 27 J @ -20 °C (10×10 mm specimen)	EN ISO 148-1

Weld Nondestructive Testing

Item	Coverage	Requirement	Method / Reference
Weld RT or UT	Full spiral seam length	100% inspection. Acceptance per EN 10219-1; cracks and lack of fusion are unacceptable	EN ISO 17636 / EN ISO 17640
Weld visual	100% visual	No excessive undercut, no surface cracks; cap height and misalignment within EN 10219-2 tolerances	Visual / weld gauge

Dimensional & Profile Checks

Item	Frequency	Requirement	Reference
Outside diameter	Per pipe or batch sampling	Within EN 10219-2 circular hollow section tolerance	EN 10219-2
Wall thickness	Per pipe or batch sampling	Within EN 10219-2 tolerance	EN 10219-2
Length	Per pipe	Within ordered length tolerance per EN 10219-2	EN 10219-2
Straightness	Sampling	Per EN 10219-2 for circular sections	EN 10219-2
Pipe ends	Per pipe	End squareness, bevel angle (if specified) per order	EN 10219-2

Additional Notes

Hydrostatic test: EN 10219 as a structural hollow section standard does not mandate per-pipe hydrostatic testing. If your project requires leak-tightness or pressure verification, specify it separately in the inquiry; test pressure and hold time to be agreed.

Third-party witness: SGS, BV, Intertek, or your nominated inspector can witness any of the above. Typical witness points: tensile test, impact test, weld NDT, and final dimensional check. Request before order confirmation to reserve the inspection window.

Certification: Results are compiled in the EN 10204 3.1 certificate, traceable to the heat number. If wall thickness prevents standard 10×10 mm impact specimens, the certificate will state the actual specimen size and any conversion basis.

In-House CNAS-Accredited Laboratory

Our testing laboratory holds CNAS (China National Accreditation Service for Conformity Assessment) accreditation. Inspection items within the accredited scope are performed in-house and reported directly—no external lab queue.

What this means for your order:

Controlled lead time. Tensile, impact, and chemical analysis run on-site. Production schedule is not held up by third-party lab availability.

Traceable results. CNAS-accredited reports carry international mutual recognition under the ILAC-MRA framework. Test data is linked to heat number and pipe batch, submitted alongside the EN 10204 3.1 certificate.

Intervention at the source. Testing sits next to the production line. Deviations are traced back to forming, welding, or raw material immediately—not discovered after shipment.

Suppliers without in-house laboratories: Testing schedules rely on third parties, delivery times are uncontrollable, and pipes may have already been shipped when problems are discovered.

We have CNAS laboratory: stretching, impact, and composition are completed on the production line, and the data follows the 3.1 certificate. Deviation can be intercepted in the workshop.

Laboratory Coverage

Category	Items	Method
Chemical analysis	C, Si, Mn, P, S and other elements; CEV calculation	Spectrometry / chemical analysis
Tensile test	Yield, ultimate tensile, elongation	EN ISO 6892-1
Impact test	Charpy V-notch energy, -20 °C	EN ISO 148-1
Hardness test	Base metal, weld, HAZ	Applicable hardness method
Metallography	Weld macro/microstructure, inclusions, grain size	Applicable metallographic method
Dimensional	OD, WT, length, straightness, pipe ends	EN 10219-2

Scope note: CNAS accreditation applies to the items listed in the laboratory's accreditation schedule. If weld RT or UT falls outside the accredited scope, it is performed by a qualified NDT agency or witnessed by a third party per project requirement. Request the scope schedule at inquiry to verify coverage against your order's test items.

Third-party witness is unaffected. The in-house lab does not preclude SGS, BV, Intertek, or other third-party attendance—witness points can cover the full in-house testing process, with data shared.

For projects within the scope of CNAS accreditation, the report is issued by our factory and corresponds one-to-one with the furnace batch number.

ASTM A252 vs. EN 10219 S355J2H: Key Differences

Both standards cover welded steel pipe for piling and structural use. They are not interchangeable without review. The main differences:

Aspect	EN 10219 S355J2H	ASTM A252 (Gr. 2 / Gr. 3)
Origin / scope	European standard for cold-formed welded structural hollow sections	American standard for welded and seamless steel pipe piles
Yield strength	355 MPa min (T ≤ 16 mm)	Gr. 2: 207 MPa min; Gr. 3: 241 MPa min (values vary by source)
Tensile strength	470 – 630 MPa	Gr. 2: 379 – 531 MPa; Gr. 3: 414 – 586 MPa
Impact toughness	Mandatory Charpy test at -20 °C (J2 designation); 27 J min	Typically not mandatory; may be specified optionally
Chemical requirements	Mandatory ladle analysis with CEV limit	Chemical analysis recommended; less prescriptive
NDT of weld	Mandatory UT or RT of weld seam	Optional or per order requirement
Primary design logic	Structural hollow section with toughness and weld quality controls	Static load-bearing pile; focus on compressive/load capacity
Typical market	Europe, Middle East, projects specifying EN standards	North America, Latin America, pile-driven foundation projects
Practical takeaway: If your project is governed by EN 10219 and calls for S355J2H, A252 is not a drop-in substitute—the yield strength floor is lower (even Gr. 3 per commonly cited values), and impact testing is not a default requirement. Conversely, if your specification is A252 Gr. 3, S355J2H exceeds the typical strength floor but comes with tighter testing obligations that may affect cost and documentation. Confirm the governing standard before ordering. If you make the wrong choice, what is the cost：If your specification book cover says ASTM A252 Gr.3, do not use S355J2H as an "equivalent substitute" - although the strength may seem higher, impact testing is mandatory, and the cost of certification and testing may change, which the supervisor may not recognize. On the other hand, if the specification book is EN 10219 S355J2H and the lower limit of yield strength (common value 241 MPa) of A252 Gr.3 is lower than 355 MPa, the structural design is not equivalent. The search results also confirm this point: the common yield strength of A252 Gr.3 is 241 MPa, while S355J2H is 355 MPa; The impact requirement for S355J2H is 47J (or 27J, depending on the source) at -20 ° C, while A252 typically does not require mandatory impact.

FAQ

Can you supply to ASTM A252 instead?

Yes. We produce SSAW pipe to ASTM A252 Grades 1, 2, and 3 alongside EN 10219 orders. State the standard and grade; the line handles both.

What is the maximum diameter?

The standard spiral line covers up to 1422 mm OD for this grade and wall range. Larger diameters depend on wall thickness and quantity. Send your required OD and WT; we will confirm feasibility and lead time.

Do you provide third-party inspection?

Yes. SGS, BV, Intertek, or your nominated inspector can attend final inspection and testing. We coordinate the visit and provide access and documentation.

What coating do you recommend for marine piling?

For submerged or splash-zone service, coal tar epoxy or 3PE is typical. For atmospheric exposure, standard epoxy or polyurethane is sufficient. We quote coating with the pipe for single-point responsibility.

Documents and Compliance Checklist

Accompanying documents (standard configuration)

EN 10204 3.1 certificate (including chemical composition, tensile, impact, NDT results)

Internal testing reports within the scope of CNAS accreditation (if applicable)

Declaration of conformity with CE marking (EN 10219)

Shipping list and confirmation of pipe end protection

Supplement as needed (indicated during inquiry)

Third party witness report (SGS/BV/Intertek)

Coating inspection report (such as 3PE, epoxy)

Water pressure test record (as required by the project)

Get a Price

Send the following and we will return a quotation within one working day:

Outside diameter and wall thickness

Total length or tonnage

End preparation (plain, bevelled, pipe shoe)

Surface treatment, if any

Delivery destination

Email: [Email: richard@ssawpipe.com]

Phone / WhatsApp: [+86 15822968134]

Technical data sheets and past project references available on request.

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Email: richard@ssawpipe.com

Telephone: +86-15822968134

Address: No. 92, Jiefang East Road, Xinhua District, Cangzhou City