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Alloys for every application.

Kovatch Castings offers one of the widest selections of alloys available in the investment casting industry. We can offer you more than 150 ferrous and non-ferrous materials to meet your project demands. From stainless steel to aluminum, our engineers welcome the opportunity to discuss the best metals for your project.

Explore Our Materials

Scroll down to see a list of alloys we pour, along with specs and ratings. Though comprehensive, this list is not exhaustive.

Carbon & Low Alloy Steels

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
1020 MIL-S-81591 2 2 4 2 Yes Yes
1025 ASTM A-216 WCB 2 2 4 2 Yes Yes
1030 MIL-S-81591 2 2 4 2 Yes Yes
1045 MIL-S-81591 1 3 4 2 Yes Yes
1050 MIL-S-81591 1 3 4 2 Yes Yes
4130 AMS 5336 2 2 4 2 Yes Yes
4140 AMS 5338 2 2 4 2 Yes Yes
4340 AMS 5330 2 2 4 2 Yes Yes
6150 MIL-S-22141 1 2 4 2 Yes Yes
8620 MIL-S-22141 2 2 4 2 Yes Yes

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Cobalt Alloys

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
Co3 IC Co3 1 3 1 3 No No
Co6 AMS 5387 1 4 1 3 No No
Co21 AMS 5385 1 3 1 2 No No
Co25 H.S.25 (L605) 1 3 1 2 No No
Co31 AMS 5382 1 3 1 2 No No

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Aluminum Alloys

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
355 ASTM B-618 1 1 2 2 Yes No
356 AMS 4260; AMS 4218 1 1 2 2 Yes No
357 ASTM B-686 1 1 2 2 Yes No
712 QQ-A-601 (17) 3 1 2 2 No No

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Nickel-Based Alloys

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
Monel M-35-1 ASTM A494 M35-1 1 3 1 2 No No
INCONEL AMS 5402-A 1 2 1 2 No No

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Copper Alloys

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
C90300: Tin Bronze ASTM B-584 2 3 1 1 No No
C87500: Si Brass ASTM B-584 1 2 2 2 No No
C86200: Yellow Brass ASTM B-584 2 2 2 2 No No

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Austentic Stainless

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
303 ASTM A743 2 2 1 3 No No
304 AMS 5370 1 3 1 1 No No
310 AMS 5366 1 3 1 1 No No
316 AMS 5360 1 3 1 2 No No
330 ASTM A297 GR HT 1 3 1 1 No No
347 AMS 5362 1 3 1 1 No No

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Ferric and Martensitic Stainless

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
410 AMS 5350 2 2 3 3 Yes Yes
416 AMS 5349 3 1 3 4 Yes Yes
420 MIL-S-81591 2 2 3 3 Yes Yes
431 AMS 5372 3 3 2 3 Yes Yes
436 AMS 5354 3 3 2 3 Yes Yes

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

P.H. (Precipitation Hardening)

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
15-5 AMS 5346 2 2 1 1 Yes Yes
17-4 AMS 5355 2 2 1 1 Yes Yes

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Tool Steel

Oil Hardening

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
D-2 IC CD-2 1 3 3 4 Yes Yes
0-1 IC C0-1 2 2 4 3 Yes Yes

Air Hardening

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
A-2 ASTM A-597; Gr CA-2 1 3 4 4 Yes Yes

* REFERENCE RATING
1 – Excellent 2 – Good 3 – Fair 4 – Poor

Water Hardening

Alloy Type Common Casting Specifications Castability* Machinability* Corrosion Resistance* Weldability* Harden by Heat Treat Magnetic
S-2 IC CS-2 2 2 4 2 Yes Yes

Download Our Alloy Specification Chart
Our printable alloy specification chart is an abbreviated list of the common alloys poured at Kovatch Castings.