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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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Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
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
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
Has rich experience in steel pipe processing, can be customized according to customer requirements according to the drawing and sample processing, assist in the development of new products.
fiji EN 10210 S275 Steel Grades Pipes
Category:
Product Description
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.
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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