JIS G3455 Carbon Steel Pipes


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JIS G3455

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Application: Carbon Steel Pipes for High Pressure Service

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JIS G3455

JIS G3455 Grade STS 38/42/49 Specification Covers Carbon Steel Pipes for High Pressure Service. Mechanical properties of This steel grades can be varied greatly by heat treating. Through a controlled cycle of heating and cooling, certain desired properties are obtained by producing predictable changes in the microstructure of the steel.

 Symbol of

Conventional symbols

STS 370

STS 38

STS 410

STS 42

STS 480

STS 49

KS

ASTM

JIS

DIN

BS

Standard 
Number

GRADE

Standard 
Number

GRADE

Standard 
Number

GRADE

Standard 
Number

GRADE

Standard 
Number

GRADE

D 3564

370 SPPH 
SPPH 38  

A524

GrⅠ, Ⅱ

G-3455

STS 370 (new) 
STS 38 (nine)

1630

St 37.4

410 SPPH 
SPPH 42  

STS 410 (new) 
STS 42 (nine)

St 44.4

480 SPPH 
SPPH 49  

STS 480 (new) 
STS 49 (nine)

St 52.4

Symbol of

Chemical Composition%

C

Si

Mn

P

S

STS 370

0.25

0.10 ~ 0.35

0.30 ~ 1.10

Less than 0.035

Less than 0.035

STS 410

Less than 0.30

0.10 ~ 0.35

0.30 ~ 1.40

Less than 0.035

Less than 0.035

STS 480

Less than 0.33

0.10 ~ 0.35

0.30 ~ 1.50

Less than 0.035

Less than 0.035