AISI W2
W2 is a water-hardening tool steel that produces a finer grain size, greater uniformity, and higher toughness than other types of water-hardening tool steels. Its popularity is attributed to ready availability, low cost, excellent machinabiiity, suitability for short run tooling and perhaps of most importantly, its shallow hardenability or depth of hardening.
WEARRESISTANCE |
LowtoMedium |
TOUGHNESS |
High(1) |
RESISTANCETOSOFTENINGEFFECT OF ELEVATEDTEMPERATURE |
Low |
DEPTHOFHARDENING |
Shallow |
MACHINABILITY |
Highest |
GRINDABILITY |
Highest |
DISTORTIONINHEAT TREATING |
High |
SAFETY INHARDENING |
LowtoMedium |
RESISTANCETODECARBURIZATION |
Highest |
TYPICAL ANALYSIS |
Carbon (C) |
.85/1.50 |
Manganese(Mn) |
.10/.40 |
Silicon(Si) |
.10/.40 |
Tungsten(W) |
.15 max |
Molybdenum(Mo) |
.10 max |
TYPE O2 (UNS T31502) |
Chromium (Cr) |
.15 max |
Vanadium (V) |
.15/.35 |
Colbalt (Co) |
|
Nickel (Ni) |
.20 max |
AISI H13
H13 is a 5% chromium hot work tool steel designed for applications that require extreme toughness combined with good red-hardness. H13 will allow an extra margin of safety in tools subject to heavy hammer blows, and those containing deep recesses or sharp corners. Although H13 was designed as a hot work steel, it has solved many cold work applications where extra toughness could be gained with some sacrifice of wear resistance.
TYPICALAPPUCATIONS
Aluminum Extrusion Dies, Die Casting Dies, Heavy Duty Compression Tools, Forming Punches, Hot Forging Dies, Shear Blades, Plastic Mold Dies, and Bolt Dies.
WEARRESISTANCE |
Medium |
TOUGHNESS |
VeryHigh |
RESISTANCETOSOFTENINGEFFECT OF ELEVATEDTEMPERATURE |
High |
DEPTHOFHARDENING |
Deep |
MACHINABILITY |
MediumtoHigh |
GRINDABILITY |
MediumtoHigh |
DISTORTIONINHEAT TREATING |
VeryLow |
SAFETY INHARDENING |
Highest |
RESISTANCETODECARBURIZATION |
MediumtoHigh |
TYPICAL ANALYSIS |
Carbon (C) |
.32/.45 |
Manganese(Mn) |
.20/.50 |
Silicon(Si) |
.80/1.20 |
Tungsten(W) |
|
Molybdenum(Mo) |
1.10/1.75 |
TYPE O2 (UNS T31502) |
Chromium (Cr) |
4.75/5.50 |
Vanadium (V) |
.80/1.20 |
Colbalt (Co) |
|
Nickel (Ni) |
.30 max |
|