Low Alloy Steel Investment Castings - Lamothermic

Low Alloy Steel Castings



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.

Low Alloy 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.

Low Alloy Steels
4130, 4140, 4340, 52100, 6150, 8620, 9310

We Also Pour Low Alloy Steels to These Specifications
ASTM A732, ASTM A148, MIL-S-22141B, AMS 5336D, MIL-S-22141, ASTM A-732


Alloy Heat Treat Condition Tensile Strength Yield Strength Elongation % Hardness
4130 Anneal, normalize or harden & temper 85 – 185 ksi 75 – 175 ksi 5 – 20 % 90 HRB / 50 HRC
4140 Anneal, normalize or harden & temper 110 – 180 ksi 85 – 145 ksi 2 – 20 % 95 HRB / 55 HRC
4340 Homogenize, normalize & temper or harden & temper 125 – 250 ksi 95 – 200 ksi 2 – 15 % 95 HRB / 58 HRC
52100 Anneal, normalize or harden & temper 175 – 225 ksi 130 – 175 ksi 1 – 5 % 100 HRB / 60 HRC
6150 Anneal, normalize or harden & temper 90 – 190 ksi 60 – 170 ksi 10 – 25 % 85 HRB / 45 HRC
8620 Anneal, normalize, harden & temper or case harden 85 – 175 ksi 50 – 135 ksi 5 – 25 % 75 HRB / 55 HRC
9310 Anneal, normalize, harden & temper or case harden — — — 55 HRC case