Brand Name: | TORICH |
Model Number: | GB/T21833-2008 |
MOQ: | 5Tons |
Price: | negotiable |
Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
Supply Ability: | 5000Tons per Year |
Standard | GB/T21833 Austenitic-Ferritic Duplex Grade Stainless Steel Seamless Pipe |
Matrial | S31803(2205), S32750(2507), 254smo(31254), 904L |
Size | WT: 1mm-75mm OD: 8mm-426mm Length: as customers' requirement |
Technique | Hot Rolled (W-H), Cold Drawn (W-C) |
Surface Treament | Annealed, Brightly Annealed, Polish |
Application | For High pressure vessel, Petroleum exploitation, Chemical industry, Ship building |
Test | Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness Test, Hydrostatic or Nondestructive Electric Test etc |
Chemical Composition
Steel Grade | C max | Mn max | Si max | S max | P max | Cr max | Ni | Mo | N Cu |
S32750(2507) 00Cr25Ni7Mo4N | 0.03 | 1.20 | 0.8 | 0.020 | 0.035 | 24.0/ 26.0 | 6.0/ 8.0 | 3.0/ 5.0 | 0.24/ 0.50 0.32 |
S31803(2205) 00Cr22Ni5Mo3N | 0.03 | 2.00 | 1.0 | 0.020 | 0.030 | 21.0/ 23.0 | 4.5/ 6.5 | 2.5/ 3.5 | 0.08/ 0.20 |
S31500(3RE60) 00Cr18Ni5Mo3Siz | 0.03 | 1.2/2.00 | 1.4/2.00 | 0.030 | 0.030 | 18.0/ 19.0 | 4.25/ 5.25 | 2.5/ 3.0 | 0.05/ 0.10 |
Mechanical Properties
Steel Grade | σb(Mpa)≥ | σs(Mpa)≥ | δ(%)≥ | Hardness | |
HB | HRC | ||||
S32750(2507) 00Cr25Ni7Mo4N | 800 | 550 | 15 | 310 | 32 |
S31803(2205) 00Cr22Ni5Mo3N | 620 | 450 | 25 | 290 | 30.5 |
S31500(3RE60) 00Cr18Ni5Mo3Siz | 630 | 440 | 30 | 290 | 30.5 |
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.
PACKING:
Each tube in a plastic bag, then put tubes in a seaworthy woven bag ,each unit weight 400kg-500kg/bundle.
With strong wood structure box packing by containers loading and shipping.
Or as customer's requirement.
20 ft container - GP: 5.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 25MT/container.
40 ft container - GP: 11.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 27MT/container.
40 ft container - HG: 11.8m (Length) * 2.13m (Width) * 2.72m (Hight) ------ Max Gross Weight: 27MT/container.
Port Shanghai
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