TORICH INTERNATIONAL LIMITED
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| Standard | GB/T3093 |
| Material | 10A(U20103), 20A(U20203), Q345A(L03451) |
| Size | OD: 4-60mm WT: 0.5-8 Length: 1.5-6m |
| Delivery Condition | Heat Treatment |
| Test | Tensile Test, Hydraulic Test, Eddy Current Test, Cold Heading Test |
| Application | Diesel Engine |
Chemical Requirements
| Grade | C | Si | Mn | P | S | Cr | Ni | Cu |
| max | ||||||||
| 10A | 0.07-0.13 | 0.17-0.37 | 0.35-0.65 | 0.030 | 0.030 | 0.15 | 0.30 | 0.20 |
| 20A | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.030 | 0.030 | 0.25 | 0.30 | 0.20 |
| Q345A | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.030 | 0.030 | 0.30 | 0.30 | 0.20 |
Permissible Variations
| Accuracy Class | OD | Permissible Varations | ID | Permissible Varations |
| A | All | ±0.10 | ≤3.0 | +0.10 -0.20 |
| >3.0 | +0.10 -0.30 | |||
| B | All | ±0.10 | <2.0 ≥2.0 | ±0.05 ±0.10 |
| C | ≤3.0 >3.0 | ±0.025 ±0.050 | ||
| D | 6.0 | +0.05 0 | ||
| 7.0 |
| Grade | Tensile Strength/MPa | Yeild Strength/MPa | Elongation % |
| min | |||
| 10A | 335-470 | 205 | 30 |
| 20A | 390-540 | 245 | 25 |
| Q345A | 470-630 | 345 | 22 |
Product Show
QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it free or extra ?
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.
If you have another question, pls feel free to contact us
TORICH GB/T3093 High Pressure Seamless Steel Tubes for Diesel Engine