TORICH INTERNATIONAL LIMITED
| Product Name | JIS G 3444 Carbon Steel Tubes for general structural purposes |
| Material | Carbon Steel |
| Steel grade | STK290，STK400 STK500 STK490 STK540 |
| Diameter | 5-420mm |
| Wall thickness | 0.5-50mm |
| Application | For general structural purposes |
| Tube manufacture method | Seamless, arc welded，electric resistance welded |
| Relevant standard | KS D 3566 ASTM A500，A252， A501， BS 6323 |
| Supply Ability | 5,000tons per year |
| Delivery Time | 30-60days after received your payment |
| Packaging Details | oil antirust protection in hexagonal bundles |
| Brand Name | TORICH |
| Model Number | JIS G 3444 |
| Certification | ISO 9001 ISO14001 TS 16949 TUV DNV |
| Place of Origin | China |
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Product Specification
| Product Name | JIS G 3444 Carbon Steel Tubes for general structural purposes | Material | Carbon Steel |
| Steel grade | STK290，STK400 STK500 STK490 STK540 | Diameter | 5-420mm |
| Wall thickness | 0.5-50mm | Application | For general structural purposes |
| Tube manufacture method | Seamless, arc welded，electric resistance welded | Relevant standard | KS D 3566 ASTM A500，A252， A501， BS 6323 |
| Supply Ability | 5,000tons per year | Delivery Time | 30-60days after received your payment |
| Packaging Details | oil antirust protection in hexagonal bundles | Brand Name | TORICH |
| Model Number | JIS G 3444 | Certification | ISO 9001 ISO14001 TS 16949 TUV DNV |
| Place of Origin | China | ||
| High Light | structural steel tubing ，cold formed steel tube | ||
JIS G 3444 STK290,STK400 STK500 STK490 STK540 Carbon Steel Tubes for General Structural Purposes
JIS G 3444 Carbon Steel Tubes for general structural purposes
Standard :JIS G 3444
Size range:OD 5-420mm * WT 0.5-50mm *12000mm max
Application:for general structural purposes
Steel Grade:STK290,STK400 STK500 STK490 STK540 or per customer's request.
Relevant standard :KS D 3566 ASTM A500,A252, A501, BS 6323
Tube manufacture method:
1. Seamless
2. butt-welded
3. Automatic arc welded
4. electric resistance welded
Finishing method:Hot finished,cold finished,As electric resistance welded
NOTE:Heat treatment: If necessary,appropriate heat treatment may be applied to the tube.
CHEMICAL COMPOSITION % max | |||||
Steel grade | C | Si | Mn | P | S |
STK290 | - | - | - | 0.05 | 0.05 |
STK400 | 0.25 | - | - | 0.04 | 0.04 |
STK490 | 0.18 | 0.55 | 1.65 | 0.035 | 0.035 |
STK500 | 0.24 | 0.35 | 0.30-1.30 | 0.04 | 0.04 |
STK540 | 0.23 | 0.55 | 1.50 | 0.04 | 0.04 |
Notes:1. if necessary,alloying elements other than specified in the above table may be added | |||||
MECHANICAL PROPERTIES min | ||||||
Steel grade | Tensile strength Mpa | Yield point or proof stress Mpa | Tensile strength in weld zone Mpa | Flattening | Bendability | |
Distance between plates(H) | Bend angle | Inside radius | ||||
Applied outside diameter | ||||||
All outside diameter | All outside diameter | All outside diameter | All outside diameter | 50mm max | ||
STK290 | 290 | - | 290 | 2/3D | 90° | 6D |
STK400 | 400 | 235 | 400 | 2/3D | 90° | 6D |
STK490 | 490 | 315 | 490 | 7/8D | 90° | 6D |
STK500 | 500 | 355 | 500 | 7/8D | 90° | 6D |
STK540 | 540 | 390 | 540 | 7/8D | 90° | 6D |
Note 1 D of this table is the outside diameter of the tubes.
Note 2 Standard of bend angle be the start point of bending
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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