JIS G3466 STKR490 PIPE

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JIS G3466 STKR490 TUBE is a carbon steel corner steel pipe produced according to Japanese industrial standard (JIS G3466), mainly used in civil engineering, building structure and other fields. This kind of steel pipe is favored for its high strength and good mechanical properties.

1. Standard and type
JIS G3466 is a Japanese industrial standard that specifies the requirements for angular steel pipes for general structures, including STKR400 and STKR490 types.

2. Chemical composition of STKR490
Carbon (C) content ≤ 0.18%
Silicon (Si) content ≤ 0.55%
Manganese (Mn) content ≤ 1.50%
Phosphorus (P) content ≤ 0.040%

Sulfur (S) content ≤ 0.040%

3.Mechanical properties

The mechanical requirements of the STKR490 include a minimum tensile strength of 490 N/mm²,
the minimum yield point or proof stress is 325 N/mm², and the minimum elongation is 23%.

4. Features

• High strength

STKR490 indicates that the steel pipe has a minimum tensile strength of 490 MPa and a yield point or endurance of 325 MPa, which makes it ideal for applications where high-strength materials are required.

• Good weldability

STKR490 has good welding performance and is suitable for welding high-tension steel pipes.

• Wide range of applications

STKR490 Because of its good weldability and high strength, STKR490 steel pipe is not only suitable for building structural materials, but also for construction machinery, industrial machinery frame, etc., and has a wide range of uses.

• Various manufacturing methods

The STKR490 steel pipe can be manufactured by welding steel pipe (resistance welding, forging welding or automatic arc welding) or seamless steel pipe forming, or by forming the steel strip into a corner section or a pair of groove sections, continuous resistance welding or automatic arc welding.

• About heat treatment

Under normal circumstances, STKR490 steel pipes are not heat treated after manufacture.

• End shape

If not specified, the pipe end shape defaults to pre-bent end, but the miter end can also be provided if specified by the customers.

• Can be galvanized

Depending on customer requirements, STKR490 steel pipes can also be manufactured using galvanized steel sheets or galvanized steel strips to provide additional corrosion resistance.

5.Application

• Construction industry

In building structures, STKR490 PIPE is often used for framing and supporting structures to enhance the stability of the overall building.

• Machinery manufacturing

The application of STKR490 PIPE in mechanical products, such as casing, bracket, etc., reduces weight while ensuring strength.

• Transportation

STKR490 PIPE can be used to manufacture transportation equipment, such as the frame parts of trucks, to improve transportation efficiency.

• Marine and Marine Engineering

The special rectangular pipe for container ship lashing bridge is made of STKR490 material and is certified by classification society. The common material of pipes used for offshore platforms and life-saving supports is STKR490, and the weld quality meets the inspection requirements.

• Steel construction

Cold-formed rectangular pipe is widely used in various steel structure projects. Compared with steel-concrete structure buildings, it has the advantages of beautiful appearance, cleanliness, environmental protection and high seismic grade.

• Construction machinery

Tower crane pipe, widely used in standard section, boom, tower cap, sleeve, etc., the material is STKR490.

• Mine and mine construction

Coal mines, iron mines, non-ferrous metal mines and other shaft tank, transportation equipment, a large number of STKR490 material square pipe.