S355JR vs S275JR

Dec 25, 2025 Leave a message

S355JR vs S275JR

 

Material Performance Comparison

1. S275JR Steel
S275JR is a low-carbon structural steel with high toughness and good weldability. Its yield strength is 275MPa, tensile strength is 430-500MPa, and elongation is 22%. This steel is suitable for building and engineering structures where strength requirements are not particularly high, such as light steel structures, warehouses, and factories.

2. S355JR Steel
S355JR is also a low-carbon structural steel, but compared to S275JR, it has higher strength, with a yield strength of 355MPa, tensile strength of 470-630MPa, and elongation of 21%. This steel is suitable for building and engineering structures where strength requirements are higher, such as high-rise buildings, bridges, and heavy machinery.

 

Application Area Comparison

1. S275JR Steel
Because S275JR structural pipes have relatively low strength, they are more suitable for applications where structural strength requirements are not high. For example, it can be used to construct lightweight steel structure buildings, warehouses, factories, agricultural facilities, etc. Furthermore, S275JR pipes have good processing performance and weldability, facilitating construction and maintenance.

2. S355JR Steel
S355JR hollow pipes, due to their higher strength, are more suitable for building and engineering structures that need to withstand large loads and stresses. For example, they can be used to construct high-rise buildings, bridges, heavy machinery, ships, etc. In these fields, S355JR steel pipes can provide better structural support and safety assurance.

 

S355JR vs S275JR hollow section in stock

S275JR and S355JR tube factory

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