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JIS G3461,JIS G3462 Seamless Pipe for Boiler Heat exchanger
JIS G3461, JIS G3462, Cold Drawn Seamless Steel tube for Boiler & Heat exchanger
Standard: JIS G3461,JIS G3462
Grade: JIS G3461 STB 35, STB 42, STB 52. Boiler Tubes JIS G3462 STBA12 STBA13
OD: 15.9-139.8 mm
Thickness: 1.2-18.0mm
Length:39.34'/12M.max
Usage: Steel Pipes for Low Temperature Service.
Mechanical Properties:
|
Standard |
Steel Grade |
Tensile Strength(MPa) |
Yield Point(MPa) |
Elongation(%) |
|
JIS G3461 |
STB340 |
≥340 |
≥175 |
≥35 |
|
STB410 |
≥410 |
≥255 |
≥25 |
|
|
JIS G3462 |
STBA22 |
≥415 |
≥210 |
≥30 |
|
STBA23 |
≥415 |
≥210 |
≥30 |
Chemical Properties
|
Standard |
Steel Grade |
Chemical Coposition |
|||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
||
|
JIS G3461 |
STB340 |
≤0.18 |
≤0.3 |
0.30-0.60 |
≤0.035 |
≤0.035 |
/ |
/ |
/ |
/ |
/ |
|
STB410 |
≤0.32 |
≤0.35 |
0.30-0.80 |
≤0.035 |
≤0.035 |
/ |
/ |
/ |
/ |
/ |
|
|
JIS G3462 |
STBA22 |
≤0.15 |
≤0.50 |
0.30-0.60 |
≤0.035 |
≤0.035 |
0.80-1.25 |
0.45-0.65 |
/ |
/ |
/ |
|
STBA23 |
≤0.15 |
0.50-1.00 |
0.30-0.60 |
≤0.030 |
≤0.030 |
1.00-1.50 |
0.45-0.65 |
/ |
/ |
/ |
|
JIS G3461 Boiler Heat exchanger Seamless Pipe
JIS G3462 Boiler Heat exchanger Pipe
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