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AISI D5
D5 is a high carbon, high chromium die steel with more than 3% cobalt. Cobalt imparts a pronounced secondary hardening effect in tempering. This nondeforming, air-hardening steel has both superior abrasion resistance and greater edge strength than ordinary high carbon, high chromium die steels. The addition of cobalt also gives D5 a non-galling property perfect for forming and drawing stainless steels as well as thick sheet stock for auto bumpers, shovels and truck frame parts. Impact strength of D5 is phenomenal—over twice that of standard high carbon, high chromium steels. D5 is thus ideal for heavy blanking dies.
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WEARRESISTANCE |
HightoVeryLow |
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TOUGHNESS |
Low |
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RESISTANCETOSOFTENINGEFFECT OF
ELEVATEDTEMPERATURE |
High |
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DEPTHOFHARDENING |
Deep |
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MACHINABILITY |
Low |
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GRINDABILITY |
Low |
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DISTORTIONINHEAT TREATING |
Lowest |
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SAFETY INHARDENING |
Highest |
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RESISTANCETODECARBURIZATION |
Medium |
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TYPICAL ANALYSIS |
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Carbon (C) |
1.40/1.60 |
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Manganese(Mn) |
.60 max |
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Silicon(Si) |
.60 max |
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Tungsten(W) |
|
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Molybdenum(Mo) |
.70/1.20 |
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TYPE D2 (UNS T30402) |
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Chromium (Cr) |
11.00/13.00 |
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Vanadium (V) |
1.00 max |
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Cobalt (Co) |
2.50/3.50 |
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Nickel (Ni) |
.30 max |
AISI O1
01 is an oil-hardening, non-deforming tool steel which can be hardened at relatively low temperatures. Tools and dies made from 01 will have good wearing qualities since the tungsten and higher chromium content gives improved wear resistance over the straight manganese grades.
TYPICALAPPUCAT1ONS
Blanking Dies, Bushings, Forming Dies, Master Tools, Forming Rolls, Gauges, Trim Dies.
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WEARRESISTANCE |
Medium |
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TOUGHNESS |
Medium |
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RESISTANCETOSOFTENINGEFFECT OF
ELEVATEDTEMPERATURE |
Low |
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DEPTHOFHARDENING |
Medium |
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MACHINABILITY |
High |
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GRINDABILITY |
High |
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DISTORTIONINHEAT TREATING |
Low |
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SAFETY INHARDENING |
MediumtoHigh |
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RESISTANCETODECARBURIZATION |
High |
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TYPICAL ANALYSIS |
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Carbon (C) |
.85/1.00 |
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Manganese(Mn) |
1.00/1.40 |
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Silicon(Si) |
.50 max |
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Tungsten(W) |
.40/.60 |
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Molybdenum(Mo) |
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TYPE O1 (UNS T31501) |
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Chromium (Cr) |
.40/.60 |
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Vanadium (V) |
.30 max |
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Cobalt (Co) |
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Nickel (Ni) |
.30 max |
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