Black Seamless And Welded Rolled Steel Pipe
Black Seamless And Welded Rolled Steel Pipe
Product Description
| Standard | ASTM A268 |
| Material | TP405, TP410, TP430, TP446-1, TP446-2, 26-3-3, other material is also available |
| O.D. | 3.2 - 200 mm |
| W.T. | 0.5 - 30 mm |
| Length | Max 12000 mm |
Chemical Composition
| Grade | UNS | C | Mn | P | S | Ni | Cr | Mo | N |
| TP410 | S41000 | 0.15 max | 1.00 max | 0.040 max | 0.030 max | --- | 11.5-13.5 | --- | --- |
| | S42035 | 0.08 max | 1.00 max | 0.045 max | 0.030 max | 1.0-2.5 | 13.5-15.5 | --- | 0.30-0.50 |
| TP430 | S43000 | 0.12 max | 1.00 max | 0.040 max | 0.030 max | --- | 16.0-18.0 | --- | --- |
| TP446-1 | S44600 | 0.025 max | 1.50 max | 0.040 max | 0.030 max | ≤0.75 | 23-27 | --- | 0.025 max |
| TP446-2 | S44600 | 0.012 max | 1.50 max | 0.040 max | 0.030 max | ≤0.50 | 23-27 | --- | 0.025 max |
| 26-3-3 | S44660 | 0.030 max | 1.50 max | 0.040 max | 0.030 max | 1.0-3.5 | 25-28 | --- | 0.040 max |
Tensile and hardness requirements
| Grade | UNS | Tensile Strength, min ksi MPa | Yeild Strength, min ksi MPa | Elongation in 2 in or 50mm, min % | Rockwell Hardness B Scale |
| TP410 | S41000 | 60 (415) | 30 (205) | 20 | 95 |
| | S42035 | 80 (550) | 55 (380) | 16 | 88 |
| TP430 | S43000 | 60 (415) | 35 (240) | 20 | 90 |
| TP446-1 | S44600 | 70 (485) | 40 (275) | 18 | 95 |
| TP446-2 | S44600 | 65 (450) | 40 (275) | 20 | 95 |
| 26-3-3 | S44660 | 85 (585) | 65 (450) | 20 | 25 |
Characteristic:
Good concentricity
Good surface quality
Good OD and ID tolerance
High Precision
Stable quality
Smooth
Product Pictures
Company Introduction
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
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.