Place of Origin: | Zhejiang |
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Location: | Ningbo, Zhejiang, China (Mainland) |
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Business Type: | Manufacturer |
Main Products: | Precision Steel Tube, Welded Steel Tube, Seamless Steel Tube |
Model No.: | JIS G3462 |
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JIS G 3462 STBA 12 STBA 13 STBA 20 STBA 22 STBA23 STBA 24 STBA 25 STBA 26 Alloy Steel Boiler and Heat Exchanger
JIS G 3462 Alloy steel boiler and heat exchanger
Standard:JIS G 3462
Wall thickness 0.5-50mm Diameter 5-420mmLength Upon request
Application: for boiler and heat exchanger
Produce method:
STBA 12,STBA13,STBA20,,STBA 22 :electric resistant welding
STBA 25 STBA 26 :Seamless
Heat treatment:
STBA 12,STBA13:Low temperature annealing,
isothermal annealing, full annealing,
normalizing followed by tempering.
STBA 20 STBA22: Low temperature annealing,
isothermal annealing, full annealing,
normalizing followed by tempering.
STBA 23 STBA 24 STBA 25 STBA 26:Isothermal annealing,
full annealing followed by tempering.
CHEMICAL COMPOSITION % max |
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Steel grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
STBA 12 |
0.10-0.20 |
0.10-0.50 |
0.30-0.80 |
0.035 |
0.035 |
- |
0.45-0.65 |
STBA 13 |
0.15-0.25 |
0.10-0.50 |
0.30-0.80 |
0.035 |
0.035 |
- |
0.45-0.65 |
STBA 20 |
0.10-0.20 |
0.10-0.50 |
0.30-0.60 |
0.035 |
0.035 |
0.50-0.80 |
0.45-0.65 |
STBA 22 |
0.15 |
0.5 |
0.30-0.60 |
0.035 |
0.035 |
0.80-1.25 |
0.45-0.65 |
STBA 23 |
0.15 |
0.50-1.00 |
0.30-0.60 |
0.035 |
0.030 |
1.00-1.50 |
0.45-0.65 |
STBA 24 |
0.15 |
0.5 |
0.30-0.60 |
0.035 |
0.030 |
1.90-2.60 |
0.87-1.13 |
STBA 25 |
0.15 |
0.5 |
0.30-0.60 |
0.035 |
0.030 |
4.00-6.00 |
0.45-0.65 |
STBA 26 |
0.15 |
0.25-1.00 |
0.30-0.60 |
0.035 |
0.030 |