AMERICAN CASTING COMPANY ALLOYS

American Casting Company produces investment castings in a wide variety of alloys.  Ferrous alloys include mild steel, low alloy steel, 300 series and 400 series stainless steel, PH steel and tool steel.  We also produce parts in cobalt based, copper based and aluminum alloys.  This diverse alloy selection allows us to serve a variety of markets, including the automotive, medical, electronics, food processing and general industrial markets.  The chart below lists the most common alloys poured at American Casting, and their typical mechanical properties. 

NOTE - properties listed are for information only and should not be used for casting design purposes.  Please refer to the appropriate industry specifications for actual mechanical properties for specific alloys.

Mild Steel
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
1020 Annealed 55-60 35-40 25-35 Rb 80 Max
1020 Modified Annealed 85-100 60-65 10-15 Rb 100 Max
           
Low Alloy Steel
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
8620 As Cast 65-75 45-55 20-25 Rb 100 Max
8620 Hardened 100-130 80-110 10-20 Rc 25-40
4130 As Cast 75-85 55-65 15-20 Rb 100 Max
4130 Hardened 130-170 100-130 5-20 Rc 23-44
4140 As Cast 85-95 65-75 15-20 Rb 100 Max
4140 Hardened 130-200 100-155 5-20 Rc 20-48
4340 As Cast 85-95 65-75 15-20 Rb 100 Max
4340 Hardened 130-200 100-180 5-20 Rc 20-48
           
Stainless Steel - 300 Series
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
303 Annealed 65-75 30-35 35-45 Rb 90 Max
304 Annealed 65-75 30-35 35-45 Rb 90 Max
316 Annealed 65-75 30-35 35-45 Rb 90 Max
           
Stainless Steel - 400 Series
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
410 As Cast 65-75 35-45 20-25 Rb 100 Max
410 Hardened 160-200 120-160 5-12 Rc 32-45
416 Annealed 65-75 35-45 12-18 Rb 100 Max
416 Hardened 95-200 95-160 3-12 Rc 20-40
440C Annealed 90-100 55-65 2-4 Rc 35 Max
440C Hardened --- --- --- Rc 40-60
           
Stainless Steel - Precipitation Hardening
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
17-4 Annealed --- --- 10-15 Rc 36 Max
17-4 Hardened 150-180 140-160 6-20 Rc 34-44
15-5 Hardened 135-170 110-145 5-15 Rc 28-38
           
Cobalt Based Alloys
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
L-605 As Cast 110-125 70-80 6-10 Rc 40-45
           
Copper Based Alloys
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
Silicon Bronze As Cast 45-50 25-30 10-15 HB 80-90
Yellow Brass As Cast 25-35 10-15 25-35 HB 40-60
           
Aluminum
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
A356 Hardened 35 25 2-4 HB 70
           
Not Cast By American Casting - For Reference Only
Alloy Heat Treatment UTS (kpsi) YS (kpsi) % Elongation

Hardness
Ti6Al-4V Hardened 130-135 115-120 3-8 Rc 34-38
Ductile Iron   60-100 40-70 3-18 HB 120-240
Wrought 6061 Al Hardened 45 40 10-12  
Wrought 7075 Al Hardened 75 65 9-11