Seamless Stainless Steel Mechanical Tube A511 / A511M MT304 MT304L MT309 MT309S
| Standard | A511/A511M |
| Matrial | MT 304, MT304L, MT309, MT309S, MT 310S, MT 316, MT316L, MT317, MT321, MT347 |
| Size | WT: 0.5-5 OD: 10-325 Length: as customers' requirement |
| Regular Shape | Round / Square / Rectangle / Oval |
| Surface Treament | Miror:600G/ 800G Satin:180G /240G /320G /400G |
| Application | For Mechanical Applications |
| Test | Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive Electric Test etc |
Chemical Requirements of Austenitic Stainless Steels
| Steel Grade | Carbon | Mangan-ese, max | Phosphorus, max | Sulfur, max | Silicon, max | Nickel | Chromium |
| MT302 | 0.08 to 0.20 | 2.00 | 0.040 | 0.030 | 1.00 | 8.0-10.0 | 17.0-19.0 |
| MT304 | 0.08max | 2.00 | 0.040 | 0.030 | 1.00 | 8.0-11.0 | 18.0-20.0 |
| MT304L | 0.035max | 2.00 | 0.040 | 0.030 | 1.00 | 8.0-13.0 | 18.0-20.0 |
| MT310S | 0.08max | 2.00 | 0.040 | 0.030 | 1.00 | 19.0-22.0 | 24.0-26.0 |
Chemical Requirements of Ferritic and Martensitic Stainless Steels
| Steel Grade | Carbon | Mangan-ese, max | Phosphorus, max | Sulfur, max | Silicon, max | Nickel | Chromium |
| Martensitic | |||||||
| MT410 | 0.15 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50max | 11.5-13.5 |
| MT416 | 0.15 | 1.25 | 0.060 | 0.060 | 1.00 | 0.50max | 12.0-14.0 |
| MT413 | 0.20 | 1.00 | 0.040 | 0.030 | 1.00 | 1.25-2.50 | 15.0-17.0 |
| Ferritic | |||||||
| MT405 | 0.08 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50max | 11.5-14.5 |
| MT429 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50max | 14.0-16.0 |
| MT443 | 0.20 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50max | 18.0-23.0 |
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
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