Place of Origin: | China |
Brand Name: | Torich |
Certification: | IS09001 ISO14001 TS16949 |
Model Number: | JIS G 3466 |
Minimum Order Quantity: | 5tons |
---|---|
Price: | NEGOTIATION |
Packaging Details: | IN BUNDLES |
Delivery Time: | 30-60DAYS |
Payment Terms: | T/T L/C |
Supply Ability: | 60000 tons annual |
Grade: | STKR 400 490 | Dimensions: | Diameter 5-420mm |
---|---|---|---|
Application: | General Structure | Type: | Carbon Structural Steel |
Standard: | JIS |
STKR 400 2”*2“ Forming Welded Carbon Steel Square Tubes for General Structure
Special shape : Square and retangle shape seamless steel tubes
JIS G 3466 Carbon Steel Square and Rectangle tubes for general structure
Standard JIS G 3466
Deminsion 420mm*420mm upon requests
Wall thickness 0.5-50mm
Length 12m max
Application :for general structural purposes
Produce method:
CHEMICAL COMPOSITION % max |
|||||
Steel grade |
C |
Si |
Mn |
P |
S |
STKR 400 |
0.25 |
- |
- |
0.04 |
0.04 |
STKR 490 |
0.18 |
0.55 |
1.5 |
0.04 |
0.04 |
MECHANICAL PROPERTIES min |
|||
Steel Grade |
Tensile strength Mpa |
Yeild point or proof stress Mpa |
Elongation % |
STKR 400 |
400 |
245 |
23 |
STKR 490 |
490 |
325 |
23 |
Dimensional tolerance |
||
Specified item and dimension |
Dimensional tolerance |
|
length of side |
100mm or under |
±1.5mm |
over 100mm |
±1.5% |
|
Unvenness of flat plate portions |
side length 100mm or under |
0.5mm max |
side length over 100mm |
within 0.5% of side length |
|
Angularity made by adjacent flat plate portions
|
±1.5° |
|
Dimension at corner:s |
3t max |
|
Length |
+ not specified 0 |
|
Un-straightness |
Within 0.3% |
|
Wall thickness :t |
Square steel tube manufacture by welding |
under 3 mm ±0.3mm |
Seamless square steel tube |
under 4mm ±0.6mm |