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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.
PRODUCTS CENTER
Papua New Guinea EN 10219 S235JRH TUBE
Category:
Product Description
Basic Information
EN 10219 S235JRH is a versatile and reliable choice for structural applications, balancing strength, ductility, and formability. It is particularly suitable for projects where weight reduction and ease of fabrication are critical factors.
EN 10219 S235JRH TUBE
Grade: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S275NH, S355NH.
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)
The Wall Thickness Tolerance: ±5%
Length: Normally used 5.8m, 6m, 12m, but we can also produces depends on client's requirement.
Surface Treatment: Bare Finish, Painting, Oiling, Galvanization, 3PE, FBE coated, etc.
Applications: Construction and Structural Engineering, Mechanical Engineering, Furniture and Other Structural Components, Infrastructure Projects, etc.
Chemical Composition
| Structural hollow sections of non-alloy steels Chemical composition,max,% | ||||||
| Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Nitrogen (N) | |
| S235JRH | 0.17 | - | 1.4 | 0.045 | 0.045 | 0.009 |
Carbon (C): Provides strength but reduces ductility. S235JRH has a relatively low carbon content, which ensures good formability and weldability.
Manganese (Mn): Enhances strength and hardness without significantly reducing ductility.
Phosphorus (P) and Sulfur (S): These elements are generally undesirable as they can reduce ductility and toughness. Their content is strictly limited in S235JRH to ensure good material properties.
Mechanical Properties
| Mechanical properties of non-alloy steel hollow sections | |||||
| Yield strength, min,psi[MPa] | Tensile strength, min,psi[MPa] | Elongation,min,% | |||
| Nominal thickness | Nominal thickness | Nominal thickness | |||
| ≤ 16mm | > 16mm ≤ 40mm | ＜3mm | ≥3mm≤40mm | ≤ 40 | |
| S235JRH | 235 | 225 | 360-510 | 340-470 | 24 |
Strength: S235JRH offers sufficient strength for structural applications while maintaining good ductility and formability.
Ductility: The high elongation percentage ensures that the material can withstand deformation without fracturing, making it suitable for cold forming and welding.
Impact Resistance: The material provides good toughness at room temperature, ensuring reliability in structural applications.
Comparison With Other Steel Grades
S275J0H/S275J2H: These grades have higher yield and tensile strengths (minimum yield strength of 275 MPa) but lower ductility (minimum elongation of 20%) compared to S235JRH. They are suitable for applications requiring higher strength but may be less formable.
S355J0H/S355J2H: These grades offer even higher strength (minimum yield strength of 355 MPa) and are ideal for heavy-load-bearing structures. However, they have lower ductility and may require more careful handling during forming and welding.
Fine Grain Steels (e.g., S275NH/S355NH): These grades have similar strength properties but are designed for specific applications requiring normalized or normalized rolled conditions. They may offer better toughness at lower temperatures compared to non-alloy grades.
Advantages
High Strength-To-Weight Ratio:The cold forming process used in manufacturing EN 10219 S235 tube results in lightweight yet strong structures. This reduces the overall weight of construction projects without compromising on strength.
Good Weldability:The "JRH" designation in S235JRH indicates that this material is designed for welded structures. Its excellent weldability ensures strong and reliable joints, making it ideal for various construction projects where structural integrity is critical.
Cost-Effectiveness:The high strength of EN 10219 S235 allows for the use of thinner sections, reducing material costs. Additionally, the efficiency of cold-formed sections reduces construction time, further improving cost-effectiveness.
Versatility In Design:Available in various shapes (round, square, and rectangular), S235 tube offer architects and engineers the flexibility to design structures that meet specific aesthetic and functional requirements. This versatility allows for innovative and aesthetically pleasing designs.
Applications
EN 10219 S235JRH tubes are widely used in various industries due to their versatility and mechanical properties:
Construction: Used in building frameworks, bridges, and structural frames.
Mechanical Engineering: Suitable for manufacturing machinery and equipment due to its strength and formability.
Infrastructure Projects: Ideal for factory structures and other heavy-duty applications.
Furniture Manufacturing: Can be used to create strong and durable furniture components.
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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