TORICH INTERNATIONAL LIMITED
| Square outside dimensions | 20 × 20 mm to 500 × 500 mm |
| Primary standard | ASTM A500/A500M |
| Wall thickness | 1–24 mm |
| Rectangular outside dimensions | 20 × 30 mm to 400 × 600 mm |
| Length | 1–12 m; fixed, random, or cut-to-length supply |
| Product | Cold-formed seamless square structural steel tubing |
| Payment Terms | L/C,T/T |
| Supply Ability | 7000MT/Month |
| Delivery Time | 30~40days |
| Main grades | Grade A, Grade B, Grade C, Grade D |
| Section shape | Square; rectangular sections available on request |
| Packaging Details | In bundles |
| Brand Name | Torich |
| Model Number | Seamless Square and Rectangle |
| Certification | ISO 9001:2008 , TS16949 , ABS , CCS , DNV , GL |
| Place of Origin | China |
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Product Specification
| Square outside dimensions | 20 × 20 mm to 500 × 500 mm | Primary standard | ASTM A500/A500M |
| Wall thickness | 1–24 mm | Rectangular outside dimensions | 20 × 30 mm to 400 × 600 mm |
| Length | 1–12 m; fixed, random, or cut-to-length supply | Product | Cold-formed seamless square structural steel tubing |
| Payment Terms | L/C,T/T | Supply Ability | 7000MT/Month |
| Delivery Time | 30~40days | Main grades | Grade A, Grade B, Grade C, Grade D |
| Section shape | Square; rectangular sections available on request | Packaging Details | In bundles |
| Brand Name | Torich | Model Number | Seamless Square and Rectangle |
| Certification | ISO 9001:2008 , TS16949 , ABS , CCS , DNV , GL | Place of Origin | China |
| High Light | structural steel square tubing ，rectangular steel pipe | ||
| Item | Available Specification |
|---|---|
| Product | Cold-formed seamless square structural steel tubing |
| Primary standard | ASTM A500/A500M |
| Main grades | Grade A, Grade B, Grade C, Grade D |
| Recommended structural grade | ASTM A500 Grade C |
| Manufacturing route | Seamless tube production followed by cold forming and dimensional calibration |
| Section shape | Square; rectangular sections available on request |
| Square outside dimensions | 20 × 20 mm to 500 × 500 mm |
| Rectangular outside dimensions | 20 × 30 mm to 400 × 600 mm |
| Wall thickness | 1-24 mm |
| Length | 1-12 m; fixed, random, or cut-to-length supply |
| ASTM dimensional envelope | Maximum perimeter: 2235 mm; maximum specified wall: 25.4 mm |
| Wall-thickness tolerance | According to ASTM A500; minimum actual wall generally not less than 90% of specified wall |
| Straightness | Maximum deviation approximately 2.1 mm per metre |
| Squareness | Controlled according to ASTM A500 requirements for shaped tubing |
| Corner radius | Outside corner radius generally not more than 3.0 times the specified wall thickness |
| Surface condition | Black, pickled, shot-blasted, oiled, phosphated, primed, or galvanized |
| Heat treatment | Normally supplied as cold formed; Grade D requires heat treatment |
| End condition | Plain, deburred, chamfered, or precision cut |
| Inspection documents | EN 10204 3.1 inspection certificate available |
| Testing | Chemical analysis, tensile test, dimensional inspection, visual examination, and flattening test where applicable |
| Optional inspection | Ultrasonic testing, magnetic-particle testing, impact testing, and third-party inspection |
| Standard System | Relevant Standard | Scope |
|---|---|---|
| ASTM | ASTM A500/A500M | Cold-formed welded and seamless carbon steel structural tubing in rounds and shapes |
| ASTM | ASTM A1085/A1085M | Cold-formed welded carbon steel HSS with tighter tolerances and additional performance requirements |
| ASTM | ASTM A1110/A1110M | Structural tubing with 360 MPa minimum yield strength and impact requirements |
| EN | EN 10210-1/-2 | Hot-finished structural hollow sections of non-alloy and fine-grain steels |
| EN | EN 10219-1/-2 | Cold-formed welded structural hollow sections |
| JIS | JIS G 3466 | Carbon steel square and rectangular tubes for general structures |
| GOST | GOST 8639 | Square steel tubes and dimensional requirements |
| GOST | GOST 30245 | Welded square and rectangular closed structural profiles |
| GB | GB/T 3094 | Cold-drawn shaped steel tubes, including square and rectangular sections |
| GB | GB/T 6728 | Cold-formed hollow structural sections |
| Grade / Specification | C, max. % | Mn, max. % | P, max. % | S, max. % | Cu, min. % when copper steel is specified |
|---|---|---|---|---|---|
| ASTM A500 Grade A | 0.26 | Not specified | 0.035 | 0.035 | 0.20 |
| ASTM A500 Grade B | 0.26 | Not specified | 0.035 | 0.035 | 0.20 |
| ASTM A500 Grade C | 0.23 | 1.35 | 0.035 | 0.035 | 0.20 |
| ASTM A500 Grade D | 0.26 | Not specified | 0.035 | 0.035 | 0.20 |
| ASTM A1085/A1085M | 0.26 | 1.35 | 0.035 | 0.035 | As specified by the ordered revision |
| Grade / Specification | Minimum Tensile Strength | Yield Strength | Minimum Elongation in 50 mm | Heat-Treatment Condition |
|---|---|---|---|---|
| ASTM A500 Grade A | 310 MPa | 270 MPa minimum | 25% | Cold formed |
| ASTM A500 Grade B | 400 MPa | 315 MPa minimum | 23% | Cold formed |
| ASTM A500 Grade C | 425 MPa | 345 MPa minimum | 21% | Cold formed |
| ASTM A500 Grade D | 400 MPa | 250 MPa minimum | 23% | Heat treated |
| ASTM A1085/A1085M | 450 MPa minimum | 345-485 MPa | 21% minimum | Cold formed welded HSS |
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
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