33.4MM JIS G3444 Structural Steel Tubes For Mechanical
JIS G3444 Structural Steel Tubes for Mechanical Usage
JIS G3444 indicated welded or consistent carbon steel tubes for general auxiliary purposes,civil designing, engineering, steel towers, frameworks, swaggers, heaps for concealment of avalanche and different structures
- Grade:STK290,STK400,STK490,STK500,STK540
- Outer diameter: 33.4-660mm
- Wall thickness:2.1-22mm
- Length:0.8-18m
- suppliers Method: Hot Rolled.
- Surface Treatment: Coating, Painting, Galvanized, etc.
Chemical composition:
| Steel Grade | Chemical Composition % | ||||
| C | Si | Mn | P | S | |
| STK 400 | 0.25 max. | - | - | 0.040 max. | 0.040 max. |
| STK 490 | 0.18 max. | 0.55 max. | 1.50 max. | 0.040 max. | 0.040 max. |
Mechanical property:
| Steel Grade | Tensile strength | Yield Strength | Elongation % |
| N/kgf | N/kgf | (No.5 test piece) | |
| STK 400 | 400 {41} min. | 245 {25} min. | 23 min. |
| STK 490 | 490 {50} min. | 325 {33} min. | 23 min. |
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FAQ:
Q: Are you trading company or manufacturer?
A: We are a professional steel pipes materials manufacturer.
Q: How long is your delivery time?
A: Generally it takes 7-14 days if the goods are in stock or 30-60 days if there is no stock, this mainly depends on quantity.
Q: Do you provide free sampleas?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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