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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 10210 is a European standard that specifies the technical delivery requirements for hot-finished structural hollow sections (circular, square, rectangular, or elliptical) made of non-alloy and fine-grain steels. The S275 grade is a common structural steel with a minimum yield strength of 275 MPa. Two key variants under this standard are:● S275J0H – Impact tested at 0°C.
● S275J2H – Impact tested at -20°C.
These grades are widely used in construction, bridges, and other load-bearing structures due to their good weldability, strength, and toughness.
Chemical Composition (Nominal Values, % By Weight)
The chemical composition of S275J0H and S275J2H must comply with EN 10210-1. Key elements include:Element
S275J0H (Max %)
S275J2H (Max %)
C ≤ 0.20 ≤ 0.20 Si - - Mn ≤ 1.50 ≤ 1.50 P ≤ 0.035 ≤ 0.035 S ≤ 0.030 ≤ 0.030 Note: S275J2H has stricter limits on P and S for improved toughness at low temperatures.
Mechanical Properties
The mechanical properties (EN 10210-2) for hot-finished hollow sections are:Property
S275J0H
S275J2H
Yield Strength (ReH, MPa) ≥ 275 ≥ 275 Tensile Strength (Rm, MPa) 410–560 410–560 Elongation (A₅, %) ≥ 22 ≥ 22 Impact Test (Charpy V-notch) ≥ 27 J at 0°C ≥ 27 J at -20°C Impact Toughness:
● S275J0H: Tested at 0°C (minimum 27 Joules).
● S275J2H: Tested at -20°C (minimum 27 Joules), making it suitable for colder climates.
Manufacturing And Testing
● These steel grades are typically manufactured through hot rolling processes.
● Mandatory tests include chemical analysis, tensile testing, impact testing, and dimensional inspections.
● For welded products, non-destructive testing (NDT) of the welds is also required
Applications
● Construction: Buildings, bridges, and infrastructure.● Industrial Structures: Support columns, crane girders.
● Transportation: Chassis components (if specified).
S275J0H:Suitable for general structural applications such as steel frames for buildings, industrial equipment manufacturing, and infrastructure engineering.
S275J2H:Due to its higher impact resistance at lower temperatures, it is suitable for applications in colder environments or where higher toughness is required.
Conclusion
S275J0H and S275J2H offer a balance of strength, ductility, and toughness, with S275J2H providing better low-temperature performance. They are ideal for structural applications requiring durability and weldability.
EN 10210 S275 Steel Grades Pipes
Subcategory
Keyword
- Details
-
Overview
EN 10210 is a European standard that specifies the technical delivery requirements for hot-finished structural hollow sections (circular, square, rectangular, or elliptical) made of non-alloy and fine-grain steels. The S275 grade is a common structural steel with a minimum yield strength of 275 MPa. Two key variants under this standard are:● S275J0H – Impact tested at 0°C.
● S275J2H – Impact tested at -20°C.
These grades are widely used in construction, bridges, and other load-bearing structures due to their good weldability, strength, and toughness.
Chemical Composition (Nominal Values, % By Weight)
The chemical composition of S275J0H and S275J2H must comply with EN 10210-1. Key elements include:Element
S275J0H (Max %)
S275J2H (Max %)
C ≤ 0.20 ≤ 0.20 Si - - Mn ≤ 1.50 ≤ 1.50 P ≤ 0.035 ≤ 0.035 S ≤ 0.030 ≤ 0.030 Note: S275J2H has stricter limits on P and S for improved toughness at low temperatures.
Mechanical Properties
The mechanical properties (EN 10210-2) for hot-finished hollow sections are:Property
S275J0H
S275J2H
Yield Strength (ReH, MPa) ≥ 275 ≥ 275 Tensile Strength (Rm, MPa) 410–560 410–560 Elongation (A₅, %) ≥ 22 ≥ 22 Impact Test (Charpy V-notch) ≥ 27 J at 0°C ≥ 27 J at -20°C Impact Toughness:
● S275J0H: Tested at 0°C (minimum 27 Joules).
● S275J2H: Tested at -20°C (minimum 27 Joules), making it suitable for colder climates.
Manufacturing And Testing
● These steel grades are typically manufactured through hot rolling processes.
● Mandatory tests include chemical analysis, tensile testing, impact testing, and dimensional inspections.
● For welded products, non-destructive testing (NDT) of the welds is also required
Applications
● Construction: Buildings, bridges, and infrastructure.● Industrial Structures: Support columns, crane girders.
● Transportation: Chassis components (if specified).
S275J0H:Suitable for general structural applications such as steel frames for buildings, industrial equipment manufacturing, and infrastructure engineering.
S275J2H:Due to its higher impact resistance at lower temperatures, it is suitable for applications in colder environments or where higher toughness is required.
Conclusion
S275J0H and S275J2H offer a balance of strength, ductility, and toughness, with S275J2H providing better low-temperature performance. They are ideal for structural applications requiring durability and weldability.
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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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