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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
- Details
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Overview
EN 10219 is a European standard that specifies the technical delivery conditions for cold-formed welded structural hollow sections (circular, square, or rectangular) made of non-alloy and fine-grain steels. The S275 grade is a common structural steel with a minimum yield strength of 275 MPa, suitable for welded, bolted, and riveted constructions.Within EN 10219, two key variants of S275 steel are defined based on impact toughness at low temperatures:
● S275J0H – Moderate impact resistance (tested at 0°C).
● S275J2H – Higher impact resistance (tested at -20°C).
The suffix "H" denotes that the steel is supplied in a cold-formed hollow section.
S275J0H And S275J2H Steel Grades
S275J0H:
● Minimum Yield Strength: 275 MPa for thicknesses up to 16 mm, 265MPa for thicknesses range from 16 mm to 40mm.
● Impact Toughness: J0 indicates guaranteed impact performance at 0°C.
● Chemical Composition: It is a low-carbon steel with a maximum carbon content of 0.20%. Other elements include up to 1.50% Mn, 0.040% P, 0.040% S, and 0.009% N.
● Carbon Equivalent (CEV): The maximum CEV for nominal thicknesses up to 40 mm is 0.40%.
S275J2H:
● Minimum Yield Strength: Similar to S275J0H.
● Impact Toughness: J2 indicates guaranteed impact performance at -20°C.
● Chemical Composition: Similar to S275J0H, but with slightly different about element P and S (maximum content is 0.035%).
● Carbon Equivalent (CEV): The maximum CEV for nominal thicknesses up to 40 mm is 0.40%.
Mechanical Properties
Tensile Properties (EN 10219, Table 3)Property
S275J0H / S275J2H
Yield Strength (ReH) ≥ 275 MPa Tensile Strength (Rm) 430–580 MPa(thickness＜3mm） Elongation (A₅) ≥ 22% (based on thickness)
Impact Toughness (Charpy V-Notch, Transverse Test)Grade
Test Temperature
Minimum Impact Energy
S275J0H 0°C ≥ 27 J S275J2H -20°C ≥ 27 J 
Applications
S275J0H and S275J2H are widely used in structural applications requiring cold-formed hollow sections, such as:Building frameworks (e.g., roofs, columns, trusses).
Bridges and infrastructure projects.
Offshore structures (where low-temperature toughness is critical).
Cranes and material-handling equipment.
● S275J0H: Suitable for general structural applications where impact resistance at 0°C is required.
● S275J2H: Ideal for applications requiring impact resistance at -20°C, such as in colder climates.
● Key Advantage of S275J2H: Superior toughness at sub-zero temperatures, making it ideal for harsh climates.
Manufacturing And Certification
These steel grades are typically produced as hollow sections, either welded or seamless.● Welding: Compatible with common methods (e.g., MMA, MIG/MAG). Preheating may be required for thick sections.
● Cold Forming: Excellent ductility allows bending and shaping without cracking.
● Certification: Compliance with EN 10219 ensures that the steel meets the required mechanical and chemical properties for structural applications.
Conclusion
EN 10219 S275J0H and S275J2H offer a balance of strength, weldability, and cost-effectiveness for cold-formed steel structures. The choice between them depends on environmental conditions, with S275J2H being preferred for low-temperature applications.For detailed tolerances or processing guidelines, refer to EN 10219 and supporting standards (e.g., EN 1993 for Eurocode design).
EN 10219 S275 Steel Grades Pipes
Subcategory
Keyword
- Details
-
Overview
EN 10219 is a European standard that specifies the technical delivery conditions for cold-formed welded structural hollow sections (circular, square, or rectangular) made of non-alloy and fine-grain steels. The S275 grade is a common structural steel with a minimum yield strength of 275 MPa, suitable for welded, bolted, and riveted constructions.Within EN 10219, two key variants of S275 steel are defined based on impact toughness at low temperatures:
● S275J0H – Moderate impact resistance (tested at 0°C).
● S275J2H – Higher impact resistance (tested at -20°C).
The suffix "H" denotes that the steel is supplied in a cold-formed hollow section.
S275J0H And S275J2H Steel Grades
S275J0H:
● Minimum Yield Strength: 275 MPa for thicknesses up to 16 mm, 265MPa for thicknesses range from 16 mm to 40mm.
● Impact Toughness: J0 indicates guaranteed impact performance at 0°C.
● Chemical Composition: It is a low-carbon steel with a maximum carbon content of 0.20%. Other elements include up to 1.50% Mn, 0.040% P, 0.040% S, and 0.009% N.
● Carbon Equivalent (CEV): The maximum CEV for nominal thicknesses up to 40 mm is 0.40%.
S275J2H:
● Minimum Yield Strength: Similar to S275J0H.
● Impact Toughness: J2 indicates guaranteed impact performance at -20°C.
● Chemical Composition: Similar to S275J0H, but with slightly different about element P and S (maximum content is 0.035%).
● Carbon Equivalent (CEV): The maximum CEV for nominal thicknesses up to 40 mm is 0.40%.
Mechanical Properties
Tensile Properties (EN 10219, Table 3)Property
S275J0H / S275J2H
Yield Strength (ReH) ≥ 275 MPa Tensile Strength (Rm) 430–580 MPa(thickness＜3mm） Elongation (A₅) ≥ 22% (based on thickness)
Impact Toughness (Charpy V-Notch, Transverse Test)Grade
Test Temperature
Minimum Impact Energy
S275J0H 0°C ≥ 27 J S275J2H -20°C ≥ 27 J Applications
S275J0H and S275J2H are widely used in structural applications requiring cold-formed hollow sections, such as:Building frameworks (e.g., roofs, columns, trusses).
Bridges and infrastructure projects.
Offshore structures (where low-temperature toughness is critical).
Cranes and material-handling equipment.
● S275J0H: Suitable for general structural applications where impact resistance at 0°C is required.
● S275J2H: Ideal for applications requiring impact resistance at -20°C, such as in colder climates.
● Key Advantage of S275J2H: Superior toughness at sub-zero temperatures, making it ideal for harsh climates.
Manufacturing And Certification
These steel grades are typically produced as hollow sections, either welded or seamless.● Welding: Compatible with common methods (e.g., MMA, MIG/MAG). Preheating may be required for thick sections.
● Cold Forming: Excellent ductility allows bending and shaping without cracking.
● Certification: Compliance with EN 10219 ensures that the steel meets the required mechanical and chemical properties for structural applications.
Conclusion
EN 10219 S275J0H and S275J2H offer a balance of strength, weldability, and cost-effectiveness for cold-formed steel structures. The choice between them depends on environmental conditions, with S275J2H being preferred for low-temperature applications.For detailed tolerances or processing guidelines, refer to EN 10219 and supporting standards (e.g., EN 1993 for Eurocode design).
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Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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