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EN 10210 S275J2H Structural Steel Seamless Pipe: Complete Technical Guide

Introduction

EN 10210 S275J2H structural steel seamless pipe is a classic non-alloy structural steel grade under the European standard EN 10210-1, widely used in building structures, bridge engineering, machinery manufacturing, and infrastructure projects worldwide.

Engineers and procurement professionals frequently ask: "What is S275J2H material?", "What is the Chinese equivalent of S275J2H?", and "What is the price of EN 10210 S275J2H seamless pipe per ton?" This article provides a comprehensive technical guide covering grade designation, chemical composition, mechanical properties, applications, and procurement considerations.

01 What is S275J2H Material?

Grade Designation Explanation

S275J2H is a non-alloy structural steel grade under the EN 10210-1 standard, specifically designed for hot-finished structural hollow sections. Each character in the grade designation carries specific technical meaning:

Character Meaning
S Structural Steel
275 Minimum yield strength of 275 MPa for wall thickness ≤ 16mm
J2 Impact energy ≥ 27J at -20°C (low temperature toughness)
H Suitable for Hollow sections (hot-finished)

The material number designation for S275J2H is 1.0138, and it is produced as fully killed steel (FF) to ensure uniform properties and excellent weldability.

Applicable Standard

S275J2H seamless pipe is manufactured in accordance with EN 10210-1:2006 – "Hot finished structural hollow sections of non-alloy and fine grain steels - Technical delivery conditions".

Key requirements covered by this standard:

  • Chemical composition limits (ladle analysis)
  • Mechanical properties by wall thickness
  • Dimensional tolerances
  • Surface quality requirements
  • Testing and inspection procedures

Compared to cold-formed sections under EN 10219, EN 10210-1 hot-finished sections exhibit lower internal stresses and significantly better low-temperature impact toughness due to the hot forming process.

Primary Applications

S275J2H offers an excellent balance of strength, weldability, and low-temperature toughness, making it suitable for:

  • Building Construction: Steel frameworks for high-rise buildings, trusses, staircases, and handrails
  • Bridge Engineering: Bridge piers, abutments, arches, and truss systems
  • Industrial Structures: Heavy machinery bases, slewing bearings, lifting platforms
  • Cold Climate Structures: Outdoor projects in Northern Europe and high-altitude regions where -20°C service conditions are required
Structural Steel Seamless Pipe

02 Chemical Composition of EN 10210 S275J2H Seamless Pipe

The chemical composition of S275J2H must strictly comply with EN 10210-1 requirements. Ladle analysis values are specified as follows:

Element EN 10210-1 Requirement (max %) Typical Womic Control
Carbon (C) 0.20 0.14 – 0.18
Silicon (Si) – 0.20 – 0.35
Manganese (Mn) 1.50 1.10 – 1.40
Phosphorus (P) 0.030 ≤ 0.025
Sulfur (S) 0.030 ≤ 0.020
Nitrogen (N) 0.009 ≤ 0.007

Critical Control Points:

Tight P and S limits (both ≤ 0.030%) ensure excellent toughness and weldability. Womic's typical control is even tighter at ≤ 0.025% P and ≤ 0.020% S.
Carbon Equivalent (CEV): Per EN 10210-1, CEV shall be ≤ 0.41% for thicknesses up to 40mm, and ≤ 0.43% for 40-65mm. Womic typically achieves CEV of 0.38-0.41%, ensuring superior weldability and reduced preheat requirements.

03 Mechanical Properties of EN 10210 S275J2H Seamless Pipe

Mechanical properties vary with wall thickness per EN 10210-1 requirements:

Yield Strength (Minimum):
Wall Thickness (mm) Yield Strength (MPa)
≤ 16 275
16 < t ≤ 40 265
40 < t ≤ 65 255

Tensile Strength:
Wall Thickness (mm) Tensile Strength (MPa)
t ≤ 40 410 – 560
40 < t ≤ 65 400 – 540

Elongation (Minimum):
Wall Thickness (mm) Elongation (%)
t ≤ 40 22
40 < t ≤ 65 21

Impact Toughness:
Test Temperature: -20°C
Minimum Absorbed Energy (KV₂): 27J (longitudinal)

Key Performance Highlights:
Yield Strength: ≥ 275 MPa for wall thickness ≤ 16mm, with gradual reduction for thicker sections, maintaining ≥ 255 MPa up to 65mm
Tensile Strength: Range of 410-560 MPa, providing excellent load-bearing capacity
Elongation: ≥ 22% ensures sufficient plastic deformation capacity for cold bending and forming operations
Impact Toughness: Guaranteed 27J minimum at -20°C, meeting low-temperature service requirements for cold climate applications
Structural Steel Seamless Pipe3

04 Price of EN 10210 S275J2H Seamless Pipe

The price of S275J2H seamless pipe varies with market conditions and specific requirements. As a general reference:

FOB International Market: Approximately $600 – $850 per ton (depending on size, quantity, and certification requirements)
Domestic Chinese Market (Tax Included): Approximately RMB 4,500 – 5,500 per ton (subject to fluctuations based on raw material costs and order volume)

Key Price Influencing Factors:

Factor Impact
Size and Wall Thickness Larger diameters and heavier walls increase rolling costs, raising unit price
Certification Requirements CE marking, EN 10204 Type 3.2 certificates, and third-party inspection add costs
Delivery Condition Normalized delivery and cut-to-length finishing cost more than as-hot-finished
Raw Material Costs Steel billet and alloy price fluctuations directly affect finished pipe pricing
Order Quantity Larger volumes typically qualify for better unit pricing
For the most current pricing, please contact Womic Steel directly with your specific size and quantity requirements.

05 S275J2H Equivalent Grades: What is the Chinese Equivalent?

A frequent engineering question is: "What is the Chinese equivalent of S275J2H?" Based on comprehensive analysis of chemical composition and mechanical properties, the closest Chinese equivalent is Q275D (GB/T 700).

Chemical Composition Comparison

Element S275J2H (EN 10210-1) Q275D (GB/T 700)
C (max) 0.20% 0.18%
Mn (max) 1.50% 1.50%
P (max) 0.030% 0.035%
S (max) 0.030% 0.035%
Si (max) – 0.35%

Mechanical Properties Comparison

Property S275J2H Q275D
Yield Strength (t≤16mm) ≥ 275 MPa ≥ 275 MPa
Tensile Strength 410-560 MPa 410-540 MPa
Elongation ≥ 22% ≥ 20%
Impact Test Temperature -20°C -20°C
Impact Energy (min) 27J (KV₂) 27J (U-notch or V-notch by agreement)

Substitution Considerations

While the two grades are broadly comparable, they cannot be treated as direct equivalents in all cases:

When substitution may be considered: Projects where design requirements are based only on mechanical properties and chemical composition limits, subject to approval from the design authority, owner, and inspection agency.
When substitution is NOT recommended: Projects requiring CE marking, PED compliance, CPR (Construction Products Regulation) certification, or when the specification explicitly calls for EN 10210-1 materials. In these cases, the original EN grade must be used.
Structural Steel Seamless Pipe4

07 Why Choose Womic Steel for EN 10210 S275J2H?

Manufacturing Capabilities

  • Full compliance with EN 10210-1:2006
  • Hot-finished seamless production (hot rolling / hot extrusion)
  • Normalized delivery condition for uniform grain structure
  • Full range of sizes: OD 21.3mm – 610mm, WT 2.0mm – 50mm

Quality Assurance

  • ISO 9001:2015 Certified
  • CE Marking (PED 2014/68/EU) available
  • EN 10204 Type 3.1 / 3.2 Mill Test Certificates
  • 100% Hydrostatic Testing
  • 100% Ultrasonic Testing (upon request)
  • Third-Party Inspection accepted (SGS, BV, TÜV, DNV, LR)

Value-Added Services

  • Cut-to-length finishing
  • Beveled or plain ends
  • Oiled, varnished, or painted finish
  • Threading and coupling
  • Protective end caps and packaging

Global Logistics

  • Strategic partnership with global freight forwarders
  • Competitive shipping rates worldwide
  • Real-time tracking and monitoring
  • Marine insurance available

08 Frequently Asked Questions

Q: What is the difference between S275J2H and S275J0H?
A: Both grades have the same strength level (275 MPa yield), but differ in impact toughness temperature: S275J2H is impact tested at -20°C (27J), while S275J0H is tested at 0°C (27J). S275J2H is preferred for colder climates.

Q: What is the difference between EN 10210 and EN 10219?
A: EN 10210 covers hot-finished structural hollow sections (formed and finished at elevated temperatures), while EN 10219 covers cold-formed sections (formed at room temperature). Hot-finished sections generally offer lower internal stresses, better dimensional stability, and superior low-temperature toughness.

Q: Is S275J2H suitable for welding?
A: Yes. With a low CEV (≤ 0.41%), S275J2H exhibits excellent weldability. Preheat is generally not required for thicknesses under 20mm. For thicker sections, standard welding procedures apply.

Q: What is the minimum design temperature for S275J2H?
A: Per EN 1993 (Eurocode 3), S275J2H can be used down to -20°C with Charpy impact testing verified at -20°C (27J minimum).

Q: What is the maximum service temperature for S275J2H?
A: Structural applications typically use S275J2H up to approximately 350-400°C. For sustained high-temperature service, consult EN 1993 design guidance.

Q: Can S275J2H be supplied with EN 10204 Type 3.2 certification?
A: Yes. Womic Steel regularly supplies S275J2H with Type 3.2 certificates validated by EU-authorized bodies including TÜV, BV, SGS, and LR.

Q: What is the typical lead time for S275J2H seamless pipe?
A: Standard lead time is 25-35 days for common sizes and quantities. Larger orders or special dimensions may require 40-50 days.

09 Contact Womic Steel

E-mail: sales@womicsteel.com

Tel / WhatsApp / WeChat:

Victor: +86 15575100681
Jack: +86 18390957568

Womic Steel – Your reliable partner for EN 10210 S275J2H structural steel seamless pipes for building construction, bridge engineering, machinery manufacturing, and infrastructure projects worldwide. Certified to EN 10210-1, with full traceability and third-party inspection options available.
Post time: Jun-30-2026
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