Slow speeds, positive feeds and abundant resulfurized lubricant is significant to success in machining this alloy. Speeds and feeds are comparable to those employed with 316 or 317 stainless are appropriate here. Each and every unique machining practice can be utilized in this material. Chips will be tough and stringy and it is recommended these curlers or breakers are used.
ForgingHeat to 2000 F, soak to equalize, then heat to 2150 and equalize prior to forging
FormingWith this material pre-heating is not required and all regular welding techniques including gas tungsten arc, gas metal arc and submerged arc are obtained. Filler metal selection should be of comparable chemistry for maximum strength and resistance to intergranular attack.
WeldingThis alloy is an austenitic, nitrogen strengthened steel joining corrosion resistance similar with 316 stainless steel and greater strength. It is promptly fabricated and remains non-magnetic even after severe forming operations.
AnnealingSoak at 1900-2050 F, quench rapidly in air or water.
HardeningHardening this alloy requires cold working. It won’t harden with exposure to thermal treatment.
Chemical Composition %C | Mn | P | S | Si | Cr | Ni | N |
0.030 | 7.0 - 9.0 | 0.040 | 0.030 | 1.0 | 15.0 - 17.0 | 1.50 - 3.0 | 0.15 - 0.3 |
Tensile Strength (ksi) | 0.2% Yield Strength (ksi) | Elongation% in 2 inches |
95 | 48 | 35 |
Units | Temperature in °C | |
Density | 7.862 g/cm³ | Room |
Specific Heat | 0.11 Kcal/kg.C | 22° |
Coefficient of Expansion | 16.8 µm/m °C | 20 - 100° |
Sheet / Plater |
A 240 |
Manufacturing |
Fasteners |
Custom Machining |
Custom Fabrication |
Stamped Parts |
Flanges |
Raw Materials |
Sheets |
Plates |