Stainless steel EN 1.4318, 301LN coil and sheet is part of the austenitic family of stainless steel.
Stainless steel 1.4318 grades is a low-carbon, nitrogen alloyed alternative to TP 301LN/ EN 1.4310 with elevated strength. Making it particularly suitable for lightweight construction. It is used for applications that require increased hardness and strength.
It has a moderately low embodied energy among wrought austenitic stainless steels. Besides, it has a moderately low base cost and a moderately high tensile strength.
This grade combines the following characteristics:
- Corrosion resistance similar to 304
- Higher minimum 0.2% PS proof stress compared to 304 – 350 MPa
- Work hardening allows minimum UTS of 1150 MPa defined in EN 10088-2
- Good toughness
- Higher-strength and work hardening requires larger forces during forming
- Greater spring back than 304
The main use of this high strength austenitic grade is in railway carriages and automotive vehicle chassis. The high strength allows the use of thinner sections and therefore lower weight which in turn gives more economical running costs. The high toughness offers excellent crash resistance.
We stock and supplies only dual-certified stainless steel sheets certified to ASTM A240 AND ASME SA240 SA666 SA480.
These properties are specified for the flat-rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.
Product forms, available sizes and finishes:
| Product type | Finishes | Thickness | Width |
|---|---|---|---|
| Black hot band | 1U | 3,00-8,00 | 1000-1550 |
| Cold rolled coil | 2B, 2BB, 2C, 2D, 2E, 2G, 2H, 2J, 2K, 2M, 2R | 0,05-6,35 | 3-1530 |
| Cold rolled sheet | 2B, 2BB, 2D, 2E, 2G, 2H, 2J, 2M, 2R | 0,40-6,35 | 35-1530 |
| Hot rolled coil, pickled | 1C, 1D, 1G, 1M, 1U | 2,00-10,00 | 50-1550 |
| Precision strip | 2H, 2R | 0,05-1,50 | 3-649 |
Standards and approval:
| Standard | Designation |
|---|---|
| ASTM A240/A240M | TYPE 301LN / UNS S30153 |
| ASTM A666 | TYPE 301LN / UNS S30153 |
| EN 10028-7, PED 2014/68/EU | 1.4318 |
| EN 10088-2 | 1.4318 |
| EN 10088-4 | 1.4318 |
| IS 6911, AMENDMENT NO. 2 | ISS 301LN |
AS/NZS 4673:2001
Cold-formed stainless steel structures
Sets out requirements for the design of cold-formed stainless steel structural members. Steels for use with this Standard include those specified by a wide range of international Standards. Members may be shaped from the annealed or temper-rolled sheet, strip, plate or flat bar.
