ASTM - American Society for Testing and Materials AMS - Aerospace Material Specification
AISI - American Iron and Steel Institute IC - Investment Casting Institute
MIL - Military Specification SAE - Society of Automotive Engineers
ACI - Alloy Casting Institute IN - International Nickel
  QQ - Federal Specifications

 

Cast Tool Steels
Alloy Specification Carbon Min-Max Manganese Min-Max Silicon Min-Max Chromium Min-Max Molybdenum Min-Max Tungsten Min-Max Cobalt Min-Max Phosphorous Min-Max Sulfur Min-Max Vanadium Min-Max Iron Optional Melting Range 0F
A-2 ASTM A-597 GR CA-2 .95-1.05 .75 1.50 4.75- 5.50 .90- 1.40     .03 .03   Bal. V, .20-.50 2500-2600
IC CA-2 .95-1.05 .75 1.50 4.75- 5.50 .90- 1.40     .025 .025   Bal. V, .20-.50 2500-2600
A-6 IC CA-6 .65- .75 1.80-2.20 1.00 .80- 1.20 .80- 1.30     .025 .025   Bal.   2500-2600
D-2 ASTM A-597 GR CD-2 1.40-1.60 1.00 1.50 11.00-13.00 .70- 1.20     .03 .03   Bal. V, .40-1.00
Co, .70-1.00
2500-2600
IC CD-2 1.40-1.60 1.00 1.50 11.00-13.00 .70- 1.20     .025 .025   Bal. V, .40-1.00 2500-2600
D-3 IC CD-3 2.10-2.30 .75 1.00 11.50-13.00 .40     .025 .025   Bal.   2500-2600
D-5 ASTM A-597 CD-5 1.35-1.60 .75 1.50 11.00-13.00 .70- 1.20   2.50-3.50 .03 .03 .35- .55 Bal. Ni, .40-.60 2500-2600
D-6 IC CD-6 2.10-2.35 .75 .80-1.20 11.50-13.00 .40 .80-1.20   .025 .025   Bal.   2500-2600
D-7 IC CD-7 2.15-2.45 .75 1.00 11.50-13.00 .80- 1.20     .025 .025 3.50-4.50 Bal.   2500-2600
H-11 IC CH-11 .30- .40 .75 .95-1.15 4.60- 5.40 1.20- 1.60     .025 .025 .30- .50 Bal.   2500-2600
H-12 ASTM A-597 GR CH-12 .30- .40 .75 1.50 4.75- 5.75 1.25- 1.75 1.00-1.70   .03 .03 .20- .50 Bal.   2500-2600
IC CH-12 .30- .40 .75 1.50 4.75- 5.75 1.25- 1.75 1.00-1.70   .025 .025 .20- .50 Bal.   2500-2600
H-13 ASTM A-597 GR CH-13 .30- .42 .75 1.50 4.75- 5.75 1.25- 1.75     .03 .03 .75-1.20 Bal.   2500-2600
IC CH-13 .30- .42 .75 1.50 4.75- 5.75 1.25- 1.75     .025 .025 .75-1.20 Bal.   2500-2600
L-6 IC CL-6 .65- .75 .75 1.00 .80- 1.00       .025 .025   Bal. Ni, 1.50-1.90 Required 2500-2600
M-2 ASTM A-597 GR CM-2 .78- .88 .75 1.00 3.75- 4.50 4.50- 5.50 5.50-6.75 .25 .03 .03 1.25-2.20 Bal. Ni, .25 Max. 2500-2600
IC CM-2 .78- .88 .75 1.00 3.75- 4.50 4.50- 5.50 5.50-6.75   .025 .025 1.25-2.20 Bal. Ni, .25 Max. 2500-2600
IC C1-M-2 .95-1.05 .75 1.00 3.75- 4.50 4.50- 5.50 5.50-6.75   .025 .025 1.75-2.20 Bal. Ni, .25 Max. 2500-2600
M-4 IC CM-4 1.25-1.35 .75 1.00 3.75- 4.50 4.50- 5.50 5.20-6.20   .025 .025 3.60-4.40 Bal.   2500-2600
M-42 IC CM-42 1.00-1.20 .75 1.00 3.50- 4.25 9.00-10.00 1.25-1.75 7.50-8.50 .025 .025 .95-1.35 Bal.   2500-2600
M-43 IC CM-43 1.15-1.35 .75 1.00 3.50- 4.25 8.25- 9.25 1.50-2.00 7.75-8.75 .025 .025 1.50-2.00 Bal.   2500-2600
0-1 ASTM A-597 GR CO-1 .85-1.00 1.00-1.30 1.50 .40- 1.00   .40- .60   .03 .03 .30 Bal.   2500-2600
IC CO-1 .85-1.00 1.00-1.30 1.50 .40- 1.00   .40- .60   .025 .025 .30 Bal.   2500-2600
0-2 IC CO-2 .85- .95 1.50-1.80 1.00 .40 .30     .025 .025 .30 Bal.   2500-2600
0-7 IC CO-7 1.10-1.20 .75 1.00 .50- .70   1.65-1.85   .025 .025 .15- .25 Bal.   2500-2600
S-1 IC CS-1 .45- .55 .75 1.00 1.35- 1.65   2.35-2.65   .025 .025   Bal.   2450-2550
S-2 IC CS-2 .45- .55 .75 .90-1.20   .40- .60     .025 .025 .30 Bal.   2450-2550
S-4 IC CS-4 .50- .60 .70- .90 1.80-2.20 .30       .025 .025 .30 Bal.   2450-2550
S-5 ASTM A-597 GR CS-5 .50- .65 .60-1.00 1.75-2.25 .35 .20- .80     .03 .03 .35 Bal.   2450-2550
IC CS-5 .50- .65 .60-1.00 1.75-2.25 .35 .20- .80     .025 .025 .35 Bal.   2450-2550
S-7 ASTM A-597 GR CS-7 .45- .55 .40- .80 .60-1.00 3.00-3.50 1.20-1.60     .03 .03   Bal.   2450-2550
IC CS-7 .50- .60 .50- .80 1.00 3.00-3.50 1.20-1.60     .025 .025   Bal.   2450-2550
T-1 IC CT-1 .65- .75 .75 1.00 3.75-4.50   17.25-18.75   .025 .025 .90-1.30 Bal.   2600-2675
T-2 IC CT-2 .80- .90 .75 1.00 3.75-4.50 1.00 17.50-19.00   .025 .025 1.80-2.40 Bal.   2600-2675
T-6 IC CT-6 .75- .85 .75 1.00 4.00-4.75 .70-1.00 18.50-21.25 10.00-13.70 .025 .025 1.50-2.10 Bal.   2600-2675