The JIS G3455 standard specifies the carbon steel pipe grade STS 410, which is suitable for high-pressure carbon steel pipes with a maximum temperature of approximately 350°C.

standard:JIS

Surface :1. Galvanized 2. Black and Color Painting

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introduction

JIS G3455 Grade STS 410 Carbon Steel Seamless Pipes are widely used in various general purpose applications worldwide. This pipe has excellent ductility and strength while providing long-term wear resistance.
STS 410 carbon steel pipe has moderate strength compared to other grades such as STS 480 and STS 510. The mechanical properties of this carbon steel pipe can be tuned and optimized through specific heat treatments. This treatment changes the structure of the steel at a microscopic level by precisely controlling the heating and cooling processes, resulting in predictable changes in properties.
In various industrial applications, STS 410 high-pressure carbon steel pipes are widely used in environments that withstand high pressure and temperature, such as steam boilers, pipelines, and high-pressure equipment. Specifically, STS 410 has a minimum tensile strength of 412 MPa and a minimum yield strength of 245 MPa.

Technical Data

Heat treatment of JIS G3455 STS 410 carbon pipe

Letter symbol of grade	Hot-finished seamless steel pipe	Cold-finished seamless steel pipe
STS 410	As manufactured. However, low temperature annealing of normalizing may be applied, as necessary.	Low temperature annealed of normalized

Chemical Composition of JIS G3455 STS 410 pipe

Grade	Chemical Composition %
Grade	C	Si	Mn	P	S
STS 410	0.30 max.	0.10~0.35	0.30~1.40	0.035 max.	0.035 max.

STS410 mechanical property range value:
Note: The actual mechanical properties are subject to the steel factory warranty.
Tensile strength σb (MPa): ≥540
Yield strength σ0.2 (MPa): ≥345
Elongation δ5(%): ≥25
Impact power Akv(J): ≥78
Quenching and tempering hardness: ≥159HBW
Sectional shrinkage ψ (%): ≥55
Annealing hardness: ≥200HBW
Sample size: The sample blank size is 15mm
STS410 heat treatment process:
Quenching heating temperature: 950-1000℃; coolant: oil cooling

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