1.4310
301
SUS301
12Cr17Ni7
Aircraft structural parts/Utensils /Tablewear
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301 stainless steel is a typical austenitic chromium-nickel stainless steel with excellent corrosion resistance, good formability and high strength. Its strength can be significantly improved through cold working (cold rolling, stretching), and part of it is transformed into martensite during the processing, so that it has a certain magnetic property after cold working. It is widely used in spring components, automotive parts, hardware stamping, electronic shrapnel and other fields.
Chemical Composition
| Grade | C≤% | Si≤% | Mn≤% | P≤% | S≤% | Ni≤% | Cr% | N |
| 301 | 0.15 | 1.00 | 2.00 | 0.045 | 0.030 | 6.00-8.00 | 16.00-18.00 | 0.10 |
Speification
Table 1 Thickness tolerance
Thickness range (mm) | Tolerance （mm） |
0.05-0. 13 | 士0.002 |
0.14-0.19 | 士0.008 |
0.20-0.79 | 士0.01 |
0. 80-0.99 | 士0.015 |
1.0-1.2 | 士0.02 |
Table 2 Width tolerance
Width Range | Tolerance |
（mm） | （mm） |
4.2-600 | ±0.05-±0.2mm |
Camber | Customer requirement |
L-shaped Warping | Max150mm/m |
Edge Wave | Max0.5mm |
Twist | Max5mm |
Surface Quality Classification | SL,RL2 |
Roll Chatter Marks | There are limit samples provided by the customer. |
Single coil weight | According to customer requirement |
Surface and Edge
Surface：2B
Edge：Slit
Height of burr： 10% of Thickness
Coil Size
Inside Diameter：280mm 、300mm 、400mm 、500mm
Max Outside diameter：1100mm
Mechanical properties
Type | Y.S Mpa min | T.SMpa min | <0.4mm | EL min 0.4-0.8mm | >0.8mm | Hardness HVmin |
1/4H | 515 | 860 | 25 | 25 | 25 | 250 |
1/2H | 760 | 1035 | 15 | 18 | 18 | 310 |
3/4H | 930 | 1205 | 10 | 12 | 12 | 370 |
H | 965 | 1275 | 8 | 9 | 9 | 430 |
EH | 1790 | 1860 | 490 |
Application
Relationship between deformation and martensitic transformation
(a), (b), (c), and (d) correspond to the EBSD of 301 stainless steel with rolling deformation amounts of 10%, 20%, 30%, and 40%, respectively
Microstructure in extremely hard state
(a) and (b) are the microstructures of 301 stainless steel in an extremely hard state
Standard Packaging Solution
1. Multi-layer protection: Anti-rust, moisture-proof, dust-proof, pressure-resistant, collision-proof and scratch-proof, fully protecting coils during transportation
2.Structural design: Wood spacers between coils for convenient storage and handling
3.Label management: Exclusive label attached to each coil, marking coil number, steel grade, dimension and net weight
4.Batch inspection: Test samples attached to each pallet for customer incoming inspection
Testing Equipment & Qualification
Microhardness tester, Rockwell hardness tester, electronic universal tensile testing machine, metallographic microscope, carbon-sulfur analyzer, imported scanning electron microscope (SEM), imported roughness tester, salt spray test chamber, tubular heat treatment furnace
Certifications：ISO9001 Quality Management System、 ISO14001 Environmental Management System、 ISO45001 Occupational Health & Safety Management System、IATF16949 Automotive Quality Certification
