TORICH INTERNATIONAL LIMITED
| Supply Ability | 5,000tons per year |
| Delivery Time | 30-60days after received your payment |
| Packaging Details | oil antirust protection in hexagonal bundles |
| 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 |
| Brand Name | TORICH |
| Model Number | JIS G 3444 |
| Certification | ISO 9001 ISO14001 TS 16949 TUV DNV |
| Place of Origin | China |
View Detail Information
Explore similar products
S235JR U Beam Galvanized Structural Steel Pipe For Structural And Building
Cold Drawn Structural Steel Pipe GB/T 3094 Excellent OD / ID Controlled
Galvanized DIN 2440 EN10255 Threaded Welded Seamless Steel Pipe For Transportati
Smooth / Oiled Surface Round Structural Steel Tubing Length 1 - 12m Gb/t699
Product Specification
| Supply Ability | 5,000tons per year | Delivery Time | 30-60days after received your payment |
| Packaging Details | oil antirust protection in hexagonal bundles | 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 | 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
Who We are ？ -------A professional steel pipes materials inventor, manufacturer and solution provider Torich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which hol... Who We are ？ -------A professional steel pipes materials inventor, manufacturer and solution provider Torich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which hol...
Get in touch with us
Leave a Message, we will call you back quickly!