As a prominent supplier, Excellent Overseas is responsible for delivering unparalleled quality in S355 Structural Pipe from leading Manufacturers like Tubes, MSL, Seah, Hyundai, ArcelorMittal and NSSMC.

1. Supply Range & Dimensions

Seamless & ERW Pipe Size1/2" NB to 48" NB
Pipe Schedule (WT)SCH-20, SCH-40, SCH-80, SCH-160, SCH-XXS & Heavy Walls
Pipe Length6 Mtr, 12 Mtr, Fixed Length, Custom Cut Lengths
Pipe TypesHot Finished Seamless (HFS)
Pipe EndsPlain End (PE), Bevel End (BE)
Grades AvailableS355J0, S355J2, S355K2, S355J0H, S355J2H, S355K2H
Specification LevelEN 10210-1, EN 10210-2, BS EN 10210
Equivalent StandardsASTM A501 Grade C, JIS G 3466 STKR490, GB/T 6728 Q355C
Surface FinishBare, Cleaned, Lightly Oiled, Mill Varnish
CoatingHot Dip Galvanized, Epoxy Paint, 3LPE, Primer Coated
TestingImpact Test – 27 Joules minimum at 0°C
End Protection CapsPlastic Caps or Iron Protectors
CertificationsEN 10204 3.1 / 3.2, CE Marked, Third Party Inspection

2. Manufacturers in Stock

Hyundai Hysco
Hyundai Hysco
Valcovny Trub
Valcovny Trub
Benteler
Benteler Make
SEAH Korea
SEAH Korea
Butting
Butting Make
JFE
JFE Make
Arcelormittal
ArcelorMittal
Tenaris
Tenaris Steel
MSL
MSL Make
Nippon Steel
Nippon Steel
Tubular Canada
Tubular Canada
Tubos
Tubos API

3. S355 Chemical Composition

Steel Grades C Max Mn Max P Max Si Max S Max N Max
S275J2H0.201.500.030-0.030-
S355J2H0.221.600.0300.550.030-
S235JRH0.171.400.040-0.0400.009
S275J0H0.201.500.035-0.0350.009
S355K2H0.221.600.0300.550.030-
S355J0H0.221.600.0350.550.0350.009

4. S355 Material Mechanical Properties

EN 10210 / Steel Grades Impact Energy (J) at Temp (°C) Mechanical Strength
-20°C 0°C 20°C Yield Strength (MPa) Elongation (%) Tensile Strength (MPa)
S275J0H-27-27523410-560
S235JRH--2723526360-510
S355J2H27--35522510-680
S275J2H27--27523410-560
S355K2H40--35522510-680
S355J0H-27-35522510-680

5. S355 Steel Pipe Equivalent Standards

Country / Region Standard System Equivalent Value / Designation
EuropeENEN 1.0576
InternationalISOISO S355J2H
GermanyDINDIN 1.0576, DIN St 52-3 N, DIN S355J2H, DIN RoSt 52-3
United KingdomBSBS S355J2H, BS 50D
North AmericaUNSUNS K12709
United States (USA)AISI / SAEAISI 345A / SAE 345A
FranceAFNORAFNOR S355J2H

6. Dimensional Tolerances of S355 Steel SHS and RHS

In accordance with EN 10210-1 and EN 10219

Difference between EN 10210-1 (Hot-Finished Pipe) EN 10219 (Cold-Formed Pipe) Details
OD (A, B) ± 1% (min ± 0.5 mm, max ± 3 mm) ± 1% (min ± 0.5 mm) For S355 SHS and RHS dimensions (A and B)
Thickness ± 10% of the nominal thickness ± 10% of the nominal thickness Applies to thickness for both EN 10219 & EN 10210-1
Out-of-Roundness NA ≤ 2% of the diameter Applies to CHS; not applicable to SHS and RHS
Concavity/Convexity Allowed within dimension tolerance N/A Convexity/Concavity affects straightness
Squareness of Corners 90° ± 1.5° 90° ± 1.5° Tolerance will be same for both standards
External Corner Radius ≤ 3 times the thickness (t) N/A Hot-formed S355 tubes are typically allows larger corner radii
Twist (Torsion) 2 mm + 0.5 mm/m length 2 mm + 0.5 mm/m length Similar torsion limits in EN 10219 & EN 10210-1 sections
S355 Pipe Straightness 0.15% of total length 0.15% of total length Max deviation
Mass per Unit Length ± 6% ± 6% Same mass tolerance
S355 Pipe Length Tolerance +0/-50 mm +0/-50 mm This is for S355 pipe random lengths

7. S355 Material Tolerance Chart

OD mm Special mill lengths m* Standard mill lengths m Tolerance mm
21.3 - 42.45.4 - 7.56.0, 6.4, 7.5+150-0
48.35.4 - 14.66.0, 6.4, 7.5 & 10.0+150-0
60.3 - 114.35.0 - 14.66.0, 6.4, 7.5 & 10.0+150-0
139.76.0 - 14.57.5 & 10.0+150-0
168.3 - 193.76.0 - 14.67.5, 10.0 & 12.0+150-0
219.1 - 508.06.0 - 14.610.0 & 12.0+150-0

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8. Heat Treatment of EN 10210 S355 Seamless Pipe

Hot Forming Temp °C Cooling Type Normalizing Stress Relieving Anneal
700 - 750 °C Air Cooled 850 - 950 °C 580 - 630 °C

9. Coatings and Protection EN 10210 S355 Pipe Coating Types

Excellent Overseas supplies HIC & SSCC Tested EN 10210 S355 Pipe in Selangor, Pahang, Pathum Thani, Sarawak, West Java and Kepulauan RIAU with Multilayer Coating as per Requirement.

Surface Finish: Natural, Black Painting, Varnished
Protective Coatings: 3LPE, 3PP, FBE, 3PE
Lining/Cladding: CRA Clad and Lined Pipe
End Protection Caps: Plastic or Iron

Liquid Epoxy Coated Steel Pipes
3LPE Coated Steel Pipes
FBE Coated Steel Pipes

10. Quality Assurance and Testing of EN 10210 S355 Pipe

11. Process of Manufacturing

S355 Pipe Manufacturing Process - Excellent Overseas

12. Countries We Export To