NAS NM15MGHigh Strength and Non-Magnetic Stainless Steel
Characteristics of NAS NM15M
A high-manganese austenitic stainless steel, NAS NM15M, with a composition of 17Cr-15Mn-4Ni provides higher strength than conventional non-magnetic austenitic stainless steels, and NAS NM15M does not magnetize even if cold worked with force.
Chemical Composition of NAS NM15M
(%)
- | C | Si | Mn | Ni | Cr | N |
NM15M | 0.08 | 0.8 | 14.5 | 4.3 | 17.0 | 0.33 |
Mechanical Properties
- | Thickness (mm) | 0.2% Proof stress iMPaj |
Tensile strength iMPaj |
Elongation ij |
Hardness iHVj |
Example | 0.8 | 470 | 790 | 45.3 | 211 |
Magnetic Permeability
Effect of Cold Rolling and Aging
Work Hardening Behavior
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Spring Deflection Limit
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Corrosion Resistance
Pitting Corrosion Resistance
@Pitting corrosion potential
(V)
- | Solution Treated | 60% Cold Reduced |
3.5%NaClC30 | 0.34 | 0.31 |
Atmospheric Corrosion Resistance
@Salt water spraying Test
- | Solution Treated | 60% Cold Reduced |
3.5%NaClC30 | No Rust | No Rust |
Wear Resistance
Wear resistance of NAS NM15M
- | m`r mlPTl | Type 305 as a reference |
Wear widthiμj | QQ|QT | QO|QT |
Specimen: 60% cold rolled material
Surface area of wear tested: 1~17 o, Magnetic tape running: 3 hours
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