Place of Origin:
CHINA
Brand Name:
TORICH
Model Number:
JIS G3461
JIS G3461 Carbon Steel Tubes for Boiler and Heat Exchanger
Technique: Cold-finished, hot-finished, ERW
Chemical Composition:
| Grade | Process | Chemical Composition (%) | ||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Others | ||
| STB35 | S, E | 0.18Max | 0.35Max | 0.30~0.60 | 0.035Max | 0.035Max | - | - | - | - | 
| STB42 | S, E | 0.32Max | 0.35Max | 0.30~0.60 | 0.035Max | 0.035Max | - | - | - | - | 
| STB52 | S, E | 0.25Max | 0.35Max | 1.00~1.50 | 0.035Max | 0.035Max | - | - | - | - | 
Mechanical Properties:
| Symbol of class | Tensile strength 			 N/mm2 {kgf/mm2}  |  			Yield point or proof stress N/mm2 {kgf/mm2}  |  			Elongation % | ||
| Outside diameter 20mm or over | Outside diameter 10mm or over to and excl. 10mm | Outside diameter under 10mm | |||
| No. 11 test piece No. 12 test piece | No. 11 test piece | No. 11 test piece | |||
| STB340 			 STB410 STB510  |  			340{35}min. 			 410{42} min. 510{52} min.  |  			175{18} min. 			 255{26} min. 295{30} min.  |  			35 min. 			 25 min. 25 min.  |  			30 min. 			 20 min. 20 min.  |  			27 min. 			 17 min. 17 min.  |  		
Manufacture Method:
| Symbol of class | 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 |  		||||
Product Pictures:
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Company Introduction:
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Packaging and Delivery:
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FAQ:
Q: Are you trading company or manufacturer?
A: We are a professional steel pipes materials manufacturer.
Q: How long is your delivery time?
A: Generally it takes 7-14 days if the goods are in stock or 30-60 days if there is no stock, this mainly depends on quantity.
Q: Do you provide free sampleas?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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