TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C,D/A,D/P,T/T,Western Union, |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products |
| Packaging Details | In bundles or in wooden boxes. |
| Tensile strength | 410-550 MPa |
| Wall thickness | 0.5-50 mm |
| Length | 1-12 m |
| Yield strength | ≥245 MPa |
| Material | non-alloy carbon steel |
| Elongation | ≥24% |
| Tube form | Omega / special shaped seamless tube |
| Outside diameter | 5-420 mm |
| Brand Name | TORICH |
| Model Number | 20G Non Alloy Seamless Special Steel Pipe |
| Certification | ISO9001 ISO 14001 TS16949 |
| Place of Origin | Zhejiang/China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union, | Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products | Packaging Details | In bundles or in wooden boxes. |
| Tensile strength | 410-550 MPa | Wall thickness | 0.5-50 mm |
| Length | 1-12 m | Yield strength | ≥245 MPa |
| Material | non-alloy carbon steel | Elongation | ≥24% |
| Tube form | Omega / special shaped seamless tube | Outside diameter | 5-420 mm |
| Brand Name | TORICH | Model Number | 20G Non Alloy Seamless Special Steel Pipe |
| Certification | ISO9001 ISO 14001 TS16949 | Place of Origin | Zhejiang/China |
| High Light | high carbon steel tube ，heat exchanger tubes | ||
20G non-alloy seamless omega tube is a cold-drawn special-profile boiler tube developed for high-temperature pressure service where dimensional stability, heat-transfer efficiency, and shape consistency are critical. The base material is 20G under GB/T 5310, a recognized boiler-tube steel used for high-pressure boiler and other elevated-temperature pressure equipment.
| Material | 20G non-alloy carbon steel |
| Standard | GB/T 5310 for high-pressure boiler seamless steel tubes |
| Comparable grades | ASTM A192, ASTM A210 Gr.A1, EN 10216-2 P235GH, JIS G 3461 STB340 |
| Tube form | Omega / special shaped seamless tube |
| Outside size range | Equivalent blank tube OD 5-420 mm; shaped section produced according to drawing |
| Wall thickness | 0.5-50 mm |
| Length | 1-12 m, customizable |
| Tolerance range | To drawing; cold-drawn process selected for tighter dimensional control |
| Straightness | By agreement / according to drawing requirement |
| Surface condition | Pickled, oiled, bright annealed, or normalized clean surface, depending on order |
| Heat treatment | Normally normalized for 20G; final condition according to applicable standard and drawing |
| Manufacturing route | Seamless tube → cold drawing / cold forming to omega profile → heat treatment → dimensional calibration → inspection |
| Supply condition | Bundles or custom packing |
| GB | GB/T 5310 - seamless steel tubes for high-pressure boiler |
| ASTM / ASME | ASTM A192 / ASME SA-192 - seamless carbon steel boiler and superheater tubes; ASTM A210 / ASME SA-210 - seamless medium-carbon steel boiler and superheater tubes |
| EN | EN 10216-2 - seamless steel tubes for elevated-temperature service |
| JIS | JIS G 3461 - carbon steel boiler and heat exchanger tubes |
Power-station boiler heat-exchange coil using omega-profile water-wall / superheater tube modules. The omega section helps optimize compact heat-transfer layout while retaining seamless pressure-bearing tube integrity.
| Grade | Standard | C (%) | Si (%) | Mn (%) | P (%) | S (%) |
|---|---|---|---|---|---|---|
| 20G | GB/T 5310 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.025 | ≤0.015 |
| 20 | GB/T 3087 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 |
| ASTM A192 | ASTM A192 / ASME SA-192 | max 0.06 | -- | 0.27-0.63 | ≤0.035 | ≤0.035 |
| ASTM A210 Gr.A1 | ASTM A210 / ASME SA-210 | ≤0.27 | ≥0.10 | ≤0.93 | ≤0.035 | ≤0.035 |
| P235GH | EN 10216-2 | ≤0.16 | ≤0.35 | 0.40-1.20 | ≤0.025 | ≤0.015 |
| Grade | Standard | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| 20G | GB/T 5310 | 410-550 | ≥245 | ≥24 |
| 20 | GB/T 3087 | 410-550 | ≥245 | ≥24 |
| ASTM A192 | ASTM A192 / ASME SA-192 | ≥325 | ≥180 | ≥35 |
| ASTM A210 Gr.A1 | ASTM A210 / ASME SA-210 | ≥415 | ≥225 | ≥30 |
| P235GH | EN 10216-2 | 360-500 | ≥235 | ≥25 |
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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