AISI S5
S5 is an oil-hardening silicon-manganese steel of medium carbon content especially adapted for punches, shear blades, chisels, and other shock resisting applications. S5 is therefore applicable where the properties of silicon-manganese steels are desired in combination with well-known advantages of oil-hardening steels. A reduced tendency to distort or crack in heat treatment is accordingly combined with high toughness in S5.
WEARRESISTANCE |
LowtoMedium |
TOUGHNESS |
Highest |
RESISTANCETOSOFTENINGEFFECT OF ELEVATEDTEMPERATURE |
Low |
DEPTHOFHARDENING |
Medium |
MACHINABILITY |
MediumtoHigh |
GRINDABILITY |
MediumtoHigh |
DISTORTIONINHEAT TREATING |
Medium |
SAFETY INHARDENING |
High |
RESISTANCETODECARBURIZATION |
Low |
TYPICAL ANALYSIS |
Carbon (C) |
.50/.65 |
Manganese(Mn) |
.60/1.00 |
Silicon(Si) |
1.75/2.25 |
Tungsten(W) |
|
Molybdenum(Mo) |
.20/1.35 |
TYPE S5 (UNS T41905) |
Chromium (Cr) |
.30 max |
Vanadium (V) |
.35 max |
Colbalt (Co) |
|
AISI S7
AISI S7 is a general purpose air-hardening tool steel with high impact and shock resistance. It has good resistance to softening at moderately high temperatures. This combination of properties makes it suitable width=100% for many hot work and cold work applications. Excellent combination of high strength and toughness. Useful in moderate hot work as well as cold work work tooling. Added size stability when air hardened.
TYPICALAPPUCATIONS
Bull Riviters, Concrete Breakers (Moll Points), Riveting Dies, Powder Metal Dies, Notching Dies, Dowels, Drills, Drill Plates, Hubs, Plastic Mold Dies, Cold Forming Dies, Blanking Dies, Bending Dies, and Master Hobs.
WEARRESISTANCE |
LowtoMedium |
TOUGHNESS |
VeryHigh |
RESISTANCETOSOFTENINGEFFECT OF ELEVATEDTEMPERATURE |
High |
DEPTHOFHARDENING |
MediumtoDeep |
MACHINABILITY |
MediumtoHigh |
GRINDABILITY |
MediumtoHigh |
DISTORTIONINHEAT TREATING |
A:Lowest/0:Low |
SAFETY INHARDENING |
A:Highest/0:High |
RESISTANCETODECARBURIZATION |
Medium |
TYPICAL ANALYSIS |
Carbon (C) |
.45/.55 |
Manganese(Mn) |
.20/.80 |
Silicon(Si) |
.20/1.00 |
Tungsten(W) |
|
Molybdenum(Mo) |
1.30/1.80 |
TYPE S7 (UNS T41906) |
Chromium (Cr) |
3.00/3.50 |
Vanadium (V) |
.30 max |
Colbalt (Co) |
|
|