China Stainless Steel Tube manufacturers, our Stainless Steel Exhaust Tube, Welded Steel Tube, Round Stainless Steel Pipe, Polish Stainless Steel Tube, Stainless Coiled Tube, Duplex Stainless Steel Tube are good in quality and competitive in price.
GOST 9940 Seamless Hot-finished Steel Tubes of Corrosion-resistant Steel
Application : For pipelines for aggressive media,as semiproducts for pressure vessels and structures,High-Temperature, Aggressive media
Stainless Steel Grades:
08Cr13, 08Cr17,12Cr13, 12Cr17, 15Cr28, 15Cr25Ti,
04Cr18Ni10, 10Cr23Ni18, 08Cr17Ni15Mo3Ti, 08Cr18Ni10, 08Cr18Ni10Ti, 08Cr18Ni12Nb,
08Cr18Ni12Ti, 08Cr20Ni14Si2,10Cr17Ni13Mo2Ti, 12Cr18Ni9, 12Cr18Ni10Ti, 12Cr18Ni12Ti,
17Cr18Ni9, 08Cr22Ni6Ti
Size: O.D. : 76-159mm W.T. : 5-26mm
Tolerances: OD:Ordinary accuracy ± 1,5%, High accuracy ± 1%
Wall Thickness:
WT 5 - 8 mm: ordinary acc. +20% -15%; high acc. +12,5% - 15%
WT 8,5 - 20 mm: ordinary acc. ± 15%; high acc. +12,5% - 15%
WT 21 - 26mm: ordinary acc. +12,5% -15%; high acc. ± 12,5%
| Tube Sizes |
| OD, mm | WT, mm | OD, mm | WT, mm |
| 76 | 5 - 10 | 127 | 6 - 22 |
| 83; 89; 95; 102; 108; 114 | 5 - 12 | 133; 140; 146; 152; 159 | 6 - 26 |
| 121 | 6 - 20 | | |
| Mechanical Properties |
| Steel Grade | Tensile Strength, N/mm2(min) | Yield Strength, N/mm2(min) | Elongation, % (min) |
| 08Cr17Ti | 372 | - | 17 |
| 08Cr18Ni10 | 510 | - | 40 |
| 08Cr18Ni10Ti | 510 | - | 40 |
| 08Cr18Ni12Ti | 510 | - | 40 |
| 08Cr22Ni6Ti | 588 | - | 24 |
| 10Cr17Ni13Mo2Ti | 529 | - | 35 |
| 10Cr23Ni18 | 491 | - | 37 |
| 12Cr13 | 392 | - | 21 |
| 12Cr18Ni10Ti | 529 | - | 40 |
| 12Cr18Ni12Ti | 529 | - | 40 |
| 15Cr25Ti | 441 | - | 17 |
| Chemical Composition (%, max) |
| Steel Grade | C | Si | Mn | Cr | Ni | Mo | S | P | Ti | V |
| 08Cr17Ti | 0,08 | 0,8 | 0,8 | 16-18 | - | - | 0,025 | 0,035 | 5*C-0,8 | - |
| 08Cr18Ni10 | 0,08 | 0,8 | 2 | 17-19 | 9-11 | - | 0,02 | 0,035 | - | - |
| 08Cr18Ni10Ti | 0,08 | 0,8 | 2 | 17-19 | 9-11 | - | 0,02 | 0,035 | 5*C-0,7 | - |
| 08Cr18Ni12Ti | 0,08 | 0,8 | 2 | 17-19 | 11-13 | - | 0,02 | 0,035 | 5*C-0,6 | - |
| 08Cr22Ni6Ti | 0,08 | 0,8 | 0,8 | 21-23 | 5,3-6,3 | - | 0,025 | 0,035 | 5*C-0,65 | - |
| 10cr17Ni13Mo2Ti | 0,10 | 0,8 | 2 | 16-18 | 12-14 | 2-3 | 0,02 | 0,035 | - | 5*C-0,7 |
| 10Cr23Ni18 | 0,10 | 1 | 2 | 22-25 | 17-20 | - | 0,02 | 0,035 | - | - |
| 12Cr13 | 0,09-0,15 | 0,8 | 0,8 | 12-14 | - | - | 0,025 | 0,030 | - | - |
| 12Cr18Ni10Ti | 0,12 | 0,8 | 2 | 17-19 | 9-11 | - | 0,02 | 0,035 | 5*C-0,8 | - |
| 12Cr18Ni12Ti | 0,12 | 0,8 | 1-2 | 17-19 | 11-13 | - | 0,02 | 0,03 | 0,5-0,7 | - |
| 15Cr25Ti | 0,15 | 1 | 0,8 | 21-37 | - | - | 0,025 | 0,035 | 5*C-0,9 | - |
Shipment
Chemical Compositions:
GOST 12344-88
GOST 12346-78
GOST 12347-88
GOST 12348-88
GOST 12365-84
GOST 20580-81
Inter-crystalline corrosion test: GOST 6032-89
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.
FAQ
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, and it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but you need to 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
Contact Now
