Nominal Composition

Table 1: Nominal Composition of Stainless Steel

Nominal Composition in %
Alloy Fe C Mn Si Cr Ni Mo Ti Nb Cu Co Al Other
AISI 302 BAL 0.12 1.60 0.80 18 9 - - - - - - -
AISI 303 BAL 0.12 1.60 0.80 18 9 - -          
AISI 304 BAL 0.06 1.60 0.80 19 10 - -          
AISI 316 BAL 0.06 1.60 0.80 17 12 2.5 -          
AISI 321 BAL 0.06 1.60 0.80 18 10.5 - 0.5          
AISI 410 BAL 0.12 1.00 1.00 12.5 - 0.6            
AISI 440C BAL 1.05 1.00 1.00 17 -              
PH13-8Mo BAL 0.04 0.08 0.08 12.5 8 2.25         1.25  
15-5 PH BAL 0.04 0.75 0.50 14.5 4.8 -     3.5 - - (Nb+TA 0.3)
17-4 PH BAL 0.04 0.40 0.50 16.5 4.3 - 0.25 3.6 - - -  
CARP 20CB3 BAL 0.07 2.00 1.00 20 3.5 2.5 - 0.8 3.5 - -  
MARAGINg 300 BAL 0.30 0.10 0.10 - 18.5 4.4 0.65 0.8 - 8.75 0.10  
HK 40 BAL 0.40 1.25 1.50 25 21.5              




Table 2: Nominal Composition of Low Alloy and Specialty Alloys

Nominal Composition in %
Alloy Fe C Cr V Mn Mo Si Ni W
C-4140 BAL 0.41 1.0 - 0.85 0.25 0.04 -  
C-4340 BAL 0.30 1.0 - 0.5 0.2 - -  
C-8620 BAL 0.20 0.5 - 0.75 0.2 - 0.55  
Tool Steel A-6 BAL 0.7 1 - 2 1 - -  
Tool Steel D-2 BAL 1.5 12 1 - 1 0.3    
Tool Steel H-13 BAL 0.35 5 1 - 1.5 1 -  
Tool Steel M-2 BAL 0.85 4 2 - 5 - - 6.25
2 Cr-Mo (36A) BAL 0.25 2.25 - 0.5 1 - 0.17  
9 Cr-Mo (38A) BAL 0.10 8.5   0.45 1 0.5    
50 NIL BAL 0.13 4.00 1.25 0.25 4.25 0.25 3.50 -
52100 BAL 1.05 1.50 - 0.35 - 0.30 - -
AISI 4820 BAL 0.18 1.65 - 0.70 0.30 0.30 1.55 -
AISI 9310 BAL 0.11 1.2 - 0.55 0.12 0.25 3.25 -




Table 3: Nominal Composition of Nickel/Cobalt Alloys

Nominal Composition in %
Alloy Fe C Mn Si Cr Ni Mo Ti W Cu Co Al Other
INCO 600 8 0.15 1.00 0.50 15.5 72 - - - 6.5 - -  
INCO 625 5 0.10 0.50 0.50 21.5 58 9 0.4     1 0.4 (Nb+Ta 3.6)
INCO 718 17 0.08 0.35 0.35 19 52.5 - 0.9   0.3 1 0.6  
INCO 800 BAL 0.08 1.2 0.8 21.5 32.5 - 0.4   0.6 - 0.4 (Nb+Ta 5.1)
HASTELLOY C-22 3.0 0.01 0.50 0.08 22 56 13 - 3   2.5    (V 0.35)
HASTELLOY C-276 5.5 0.01 1.0 0.08 15.5 57 16 - 4   2.5    (V 0.35)
HASTELLOY X 18.5 0.1 1.0 1.0 22 47 9 0.15 0.6 0.5 1.5 0.5  




Table 4: Nominal Composition of Copper/Brass/Bronze Alloys

Nominal Composition in %
Alloy Cu Zn Sn Pb Fe Mn Ni Si Be
CDA 360 61.5 35.4 - 3 0.25 - - - -
CDA 510 BAL 0.2 5 - - - - - -
CDA 655 BAL 1.5 - - - 1 .6 3.3 -
CDA 857 96.3 - - - 0.8 - 1.25 - 2.45