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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.
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.
Moldova S235JRH STEEL PIPE
Category:
Product Description
Brief Description
S235JRH is a non-alloy structural steel grade that is commonly specified under European standards such as EN 10219 and EN 10210. EN 10219 covers cold-formed welded structural hollow sections made from non-alloy and fine-grain steels, defining requirements for dimensions, mechanical properties, and tolerances. EN 10210, on the other hand, pertains to hot-finished structural hollow sections, specifying similar requirements but for hot-finished products.
Basic Information
S235JRH STEEL PIPE
Type: Circular Hollow Section(CHS), Rectangular Hollow Section(RHS), Square Hollow Section(SHS)
Standard: EN 10219, EN 10210
Outside Diameter:
1/2 INCH - 24 INCH(CHS)
20MM × 20MM - 1200MM × 1200MM(SHS)
20MM × 30MM - 1000MM × 1500MM(RHS)
Wall Thickness:
1.3MM - 22MM(CHS)
1.3MM - 50MM(SHS,RHS)
Length: Commonly used 5.8M, 6M, 12M, but we can also produces depends on client's requirement.
Common Process:
ERW: 20MM - 660MM (OD) Wall Thickness: 1.3MM - 50MM
LSAW:406MM - 1420MM (OD) Wall Thickness: 10MM - 50MM
SSAW: 219MM - 4084MM (OD) Wall Thickness: 7.75MM - 25.4MM
Coating: Black paint, Varnish, Anti-rust oil.
Applications: Agricultural equipment, Architectural structures, Construction frameworks for bridges and buildings,
Mechanical equipment, Transportation construction.
Chemical Composition
| Composition, max, % | |
| EN 10219, EN 10210 | |
| Carbon (C) | 0.17 |
| Manganese (Mn) | 1.4 |
| Phosphorus (P) | 0.04 |
| Sulfur (S) | 0.04 |
| Nitrogen (N) | 0.009 |
The chemical composition of S235JRH steel is consistent across both EN 10219 and EN 10210 standards,These limits ensure that S235JRH maintains its structural integrity and weldability.
Mechanical Properties
| mechanical properties | ||
| EN 10219, EN 10210 | ||
| wall thickness ≤ 16 mm | wall thickness > 16 mm and ≤ 40 mm | |
| Yield Strength (ReH),min | 235 MPa | 225 MPa |
| Tensile Strength (Rm) | 360 - 510 MPa | 360 - 510 MPa |
| Elongation (A),min | 24.00% | 22.00% |
The mechanical properties of S235JRH are largely similar under both EN 10219 and EN 10210.
Applications
S235JRH is widely used in various structural applications due to its good machinability, weldability, and moderate strength:
EN 10219:
This standard covers cold-formed welded structural hollow sections, making S235JRH suitable for applications like square, rectangular, and circular hollow sections used in construction, bridges, and industrial structures
EN 10210:
This standard covers hot-finished structural hollow sections, which are ideal for applications requiring higher dimensional accuracy and surface quality, such as structural frames, columns, and beams.
Advantages
Good Weldability: S235JRH has excellent weldability, making it suitable for applications requiring extensive welding.
Moderate Strength and High Ductility: With a relatively low yield strength, S235JRH offers high ductility, which is beneficial for applications where deformation is expected.
Cost-Effective: It is a cost-effective material for general structural applications where high strength is not critical.
Main Differences Between EN 10219 And EN 10210
Manufacturing Process:
● EN 10219: Focuses on cold-formed welded sections, which are more suitable for applications requiring lighter and more complex shapes.
● EN 10210: Focuses on hot-finished sections, which provide better dimensional accuracy and surface finish, making them suitable for load-bearing applications
Impact Resistance:
● EN 10219 does not require impact testing for S235JRH unless specified.
● EN 10210 may require impact testing at -20°C or 0°C for certain applications.
Application Suitability:
● EN 10219: Better for lighter structures and applications where weight reduction is important.
● EN 10210: Ideal for heavy-duty structural applications requiring higher strength and dimensional stability.
In summary, S235JRH is a versatile structural steel grade suitable for a wide range of applications under both EN 10219 and EN 10210 standards. The choice between the two standards depends on the specific requirements of the application, such as manufacturing process, dimensional accuracy, and environmental conditions.
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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