TORICH INTERNATIONAL LIMITED
| Material | Alloy Steel |
| Steel Grade | STBA 12 STBA 13 STBA 20 STBA 22 STBA23 STBA 24 STBA 25 STBA 26 etc |
| Produce Method | Electric resistant welding and Seamless |
| Heat treatment | Annealing, isothermal annealing, full annealing etc |
| Standard | JIS G3462 |
| Application | For boiler and heat exchanger |
| Relevant standard | KS D 3572 ASTM A 161 A209 A213 A199 DIN 17175 BS 3059 |
| Supply Ability | 60000 tons per year |
| Delivery Time | 5-8weeks |
| Packaging Details | oil protection in hexagonal bundles |
| Brand Name | TORICH |
| Model Number | JIS G3462 |
| Certification | ISO 9001 ISO14001 TS 16949 ABS |
| Place of Origin | China |
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Product Specification
| Material | Alloy Steel | Steel Grade | STBA 12 STBA 13 STBA 20 STBA 22 STBA23 STBA 24 STBA 25 STBA 26 etc |
| Produce Method | Electric resistant welding and Seamless | Heat treatment | Annealing, isothermal annealing, full annealing etc |
| Standard | JIS G3462 | Application | For boiler and heat exchanger |
| Relevant standard | KS D 3572 ASTM A 161 A209 A213 A199 DIN 17175 BS 3059 | Supply Ability | 60000 tons per year |
| Delivery Time | 5-8weeks | Packaging Details | oil protection in hexagonal bundles |
| Brand Name | TORICH | Model Number | JIS G3462 |
| Certification | ISO 9001 ISO14001 TS 16949 ABS | Place of Origin | China |
| High Light | alloy steel tube ，alloy steel seamless tube | ||
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 | |||||||
| 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 | 8.00-10.00 | 0.9-1.10 |
| MECHANICAL PROPERTIES min | |||||
| Steel Grade | Tensile Strength Mpa | Yeild point or proof stress Mpa | Elongation % | ||
| OD 20mm and over | OD 10mm or over to and excl. 20mm | OD up to 10mm | |||
| STBA 12 | 380 | 205 | 30 | 25 | 22 |
| STBA 13 | 410 | 205 | 30 | 25 | 22 |
| STBA 20 | 410 | 205 | 30 | 25 | 22 |
| STBA 22 | 410 | 205 | 30 | 25 | 22 |
| STBA 23 | 410 | 205 | 30 | 25 | 22 |
| STBA 24 | 410 | 205 | 30 | 25 | 22 |
| STBA 25 | 410 | 205 | 30 | 25 | 22 |
| STBA 26 | 410 | 205 | 30 | 25 | 22 |
| Hardness | |
| Steel Grade | Rockwell hardness HRB(Mean value of three points) |
| STBA 12 | 80max |
| STBA 13 | 81max |
| STBA 20 | 85max |
| STBA 22 | 85max |
| STBA 23 | 85max |
| STBA 24 | 85max |
| STBA 25 | 85max |
| STBA 26 | 89max |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Company Overview A Professional Steel Tube Manufacturer and Solution Provider TORICH INTERNATIONAL LIMITED integrates steel tube manufacturing, international trade, warehousing, technical support and customized processing. Our manufacturing operations cover cold drawing, cold rolling, heat treat... Company Overview A Professional Steel Tube Manufacturer and Solution Provider TORICH INTERNATIONAL LIMITED integrates steel tube manufacturing, international trade, warehousing, technical support and customized processing. Our manufacturing operations cover cold drawing, cold rolling, heat treat...
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