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| Brand Name: | TORICH |
| Model Number: | JIS G3461 |
| MOQ: | 5 tons |
| Price: | Negotiation |
| Supply Ability: | 5,000tons per year |
JIS G 3461 Seamless carbon Steel tubes for boiler and heat exchanger
Size range:OD 5-420mm*WT0.5-50mm
Length: 12000m below, or upon customer's requests.
Application:for boiler and heat exchanger
CHEMICAL COMPOSITION % max | |||||
Steel grade | C | Si | Mn | P | S |
STB 340 | 0.18 | 0.35 | 0.30-0.60 | 0.35 | 0.35 |
STB 410 | 0.32 | 0.35 | 0.30-0.80 | 0.35 | 0.35 |
STB 510 | 0.25 | 0.35 | 1.00-1.50 | 0.35 | 0.35 |
Remark: | |||||
MECHANICAL PROPERTIES min | |||
Steel grade | Tensile strength Mpa | Yeild point or proof stress Mpa | Elongation % |
STB 340 | 340 | 175 | 35 |
STB 410 | 410 | 255 | 25 |
STB 510 | 510 | 295 | 25 |
Hardness | |
Steel grade | Rockwell hardness HRB(Mean value of three points) |
STB 340 | 77max |
STB 410 | 79max |
STB 510 | 92max |
Heat Treatment (Applicable till the end of 1990) | |||||
Steel Grade | Heat Treatment | ||||
Hot finished seamless steel tube | Cold finished seamless steel tube | Electric resistance welded steel tube other than hot finished or cold finished steel tube | Finished electric resistance welded steel tube | Fold finished electric resistance welded steel tube | |
STB 340 | As manufactured, as required, low temperature annealing or normalizing may be performed | low temperature annealing, normalizing or full annealing | normalizing | As manufactured, However, as required ,low temperature annealing or normalizing may be performed | normalizing |
STB 410 | As manufactured, However, as required, low temperature annealing or normalizing may be performed | low temperature annealing, normalizing or full annealing | normalizing | low temperature annealing | |
STB 510 | normalizing | ||||
Please specify the delivery condition and heat treatment requirement when sending the enquiry.
