| Stainless Steel - Precipitation Hardening |
Alloy
(UNS Designation)
|
End Use |
Composition
nominal wt% |
Specifications |
Density
lb/in3 (g/cm3) |
Tensile Strength
ksi. (MPa) |
0.2% Yield Strength
ksi. (MPa) |
Elong-
ation % |
Hardness |
S13800
|
Aerospace components, Injection molding equipment |
C 0.05 max,
Mn 0.2 max,
P 0.01 max,
S 0.008 max,
Si 0.10 max,
Cr 12.25-13.25,
Ni 7.5-8.5,
Al 0.90-1.35,
Mo 2-2.5,
N 0.01 max,
Fe Balance |
ASM 5864 ASTM A693 ASME SA693 |
0.279
(7.72) |
155
(1070) |
115
(790) |
18 |
43-47 Rockwell C (Hardened) |
|
S15500
|
Valve parts, fasteners, fittings, air frame parts |
C 0.07 max,
Mn 1.0 max,
P 0.04 max,
S 0.03 max,
Si 1.0 max,
Cr 14.0-15.5,
Ni 3.5 - 5.5,
Cu 2.5-4.5,
balance Fe |
ASTM A-693 ASME SA-693 AMS 5862 |
0.281
(7.78) |
150
(1030) |
110
(760) |
10 |
38 Rockwell C max (Annealed) |
S15700
|
Flat springs, bellows, diaphragms, fastners |
C 0.09 max,
Mn 1.0 max,
P 0.04 max,
S 0.03 max,
Si 1.0 max,
Cr 14.0-16.0,
Ni 6.5 - 7.7,
Al 0.75 - 1.5,
Mo 2.0-3.0,
balance Fe |
ASTM A-693 ASME SA-693 AMS 5520 |
0.282
(7.81) |
150 max
(1035 max Annealed) |
65 max
(450 max Annealed) |
25 min (Annealed) |
100 Rockwell B max (Annealed) |
S17400
|
Fasteners, air frame parts, valve parts, fittings |
C 0.07 max,
Mn 1.0 max,
P 0.04 max,
S 0.03 max,
Si 1.0 max,
Cr 15.0-17.5,
Ni 3.0 - 5.0,
Cu 3.0-5.0,
balance Fe |
ASTM A-693 ASME SA-693 AMS 5604 |
0.280
(7.75) |
150
(1030) |
110
(760) |
8 |
38 Rockwell C max (Annealed) |
S17700
|
Flat springs, Bellows, Diaphragms, and Fasteners, Cockpit doors |
C 0.09 max,
Mn 1.0 max,
P 0.04 max,
S 0.03 max,
Si 1.0 max,
Cr 16.0-18.0,
Ni 6.5 - 7.7,
Al 0.75-1.5,
balance Fe |
ASTM A-693 ASME SA-693 AMS 5528 AMS 5529 (cold rolled temper) |
0.282
(7.81) |
150 max
(1035 max Annealed) |
55 max
(380 max Annealed) |
20 min (Annealed) |
92 Rockwell B max (Annealed) |
S35000
|
Valves, Aircraft tubing, Bellows, Mounts, Brackets, and Ducts |
C 0.07-0.11,
Mn 0.5-1.25,
P 0.04 max,
S 0.03 max,
Si 0.5 max,
Cr 16.0-17.0,
Ni 4.0-5.0,
Mo 2.5-3.2,
N 0.07-0.13 balance Fe |
ASTM A-693 ASME SA-693 AMS 5548 |
0.282
(7.81) |
200 max
(1380 max Annealed) |
85 max
(585 max Annealed) |
12 min (Annealed) |
30 Rockwell C max (Annealed |