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SS400 SS490 Steel Angle Iron
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SS400 SS490 Steel Angle Iron

SS400 SS490 Steel Angle Iron

ss400 is a way of marking Japanese steel materials and is a judgment standard, equivalent to the domestic Q235 steel (also known as A3 steel). Foreign standard structural steel is often classified by tensile strength, such as SS400 (Japan is so marked), of which 400 means that the minimum value of σb is 400MPa Ultra-high strength steel refers to σb Greater than or equal to 1373 Mpa steel.SS490 is a structural hot rolled steel defined by JIS G 3101 standard. It is commonly utilized for diverse structural applications. SS490 has superior tensile strength compared to SS400 steel. It is employed in thicknesses ranging from 6 mm to 120 mm. Its chemical makeup includes a maximum of 0.050 percent of both Phosphorous and Sulphur, with iron and minor impurities. Its mechanical properties make it ideal for manufacturing structural tubes, pipes, rods, and various sectional steels.

 

 

 

Equivalent materials to the widely used SS400 include ASTM A36 and EN S275JR, both of which exhibit similar mechanical properties and are often utilized in similar applications.

Comparison with Mild Steel: ASTM A36 and EN S275JR, like SS400, are considered mild steels due to their low carbon content, yielding a balance between ductility and strength. This makes them suitable for construction applications where flexibility and durability are required.

Weldability and Machinability: SS400, ASTM A36, and EN S275JR all exhibit good weldability and machinability, which encourage their use in construction and engineering projects where fabrication of complex structures is needed.

Strength and Durability: Despite being mild steels, SS400, ASTM A36, and EN S275JR demonstrate considerable strength and durability, making them a popular choice for demanding applications. Ultimately, the selection between these equivalent materials will depend on the specific requirements of the project.

 

SS490 steel plate Mechanical properties

Yield StrengthReH[N/mm2] transv.min.

[N/mm2]transv.

Notch Impact Energy1)Ch Vcomplete samplelongitud. min [J]
t≤ 16mm t >16mm 355 345     20 degree 27J
t < 3mm t Greater than or equal to 3mm   510-680 490-630  
Up to 1.5mm 1.51-2.00mm 2.01-2.50mm 2.51-2.99mm Greater than or equal to 3mm     13 14 15 16 20

 

 

 

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SS400 SS490 steel angle iron
±0.3
1 Ton

 

 

 

 

631

 

 

 

 

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