400 Stainless Steel Investment Castings - Lamothermic

400 Stainless Steel Castings


400 Stainless Steel Investment Castings - Lamothermic

Alloys
Lamothermic pours a wide variety of ferrous and nonferrous alloys. Below are some of the more common alloys and specifications we can cast your parts with. If you don’t see your desired alloy on the list, we still may be able to pour it so please contact us, so we can talk about your needs.

Metallurgical Controls
We ensure all chemistries are in control by checking metal upon arrival and after each pour with a Thermo Scientific ARL 3460 Optical Emission Spectrometer.

400 Stainless Steel Investment Castings - Lamothermic
Thermo Scientific ARL 3460 Optical Emission Spectrometer

Improved Casting Quality
We provide value added services to ensure your castings meet all required specifications of both the purchase order and blue prints. Services we offer include machining, heat treating, plating, assembly and hot isostatic processing.

400 Series Stainless Steels
410, 416, 420, 431, 440C, 440F, CA6NM

We Also Pour 400 Series Stainless Steel to These Specifications
AMS5350, MIL-S-81591, ASTM A743, AMS5349, ASTM A532


Alloy Heat Treat Condition Tensile Strength Yield Strength Elongation % Hardness
410 Anneal, harden & temper 90 ksi 65 ksi 18% 20-35 HRB
416A Anneal, harden & temper 80 ksi 55 ksi 15 % 80 HRB – 35 HRC
420 Anneal, harden & temper 100 ksi 70 ksi 15 % 80 – 35 HRC
431 Anneal, harden & temper 170 – 195 ksi 125 – 145 ksi 5 – 15 % 25 – 45 HRC
440C Normalize, deep freeze, temper 250 + ksi 225 + ksi 5 – 15 % 25 – 45 HRC
440F Anneal, harden & temper 200 + ksi 185 + ksi 2% 25 – 45 HRC
CA6NM Anneal, harden & temper 80 – 135 ksi 3% 5 – 20 % 22 – 42 HRC