Cold work tool steel

Cold work tool steel

Achieving the hardness of or exceeding HRC58 through quenching and tempering, this steel features excellent wear resistance and strength making suitable for applications in dies that will receive heavy loads for cold forging and sheet metal stamping.

Positioning of characteristics

Positioning of characteristics

Chemical composition/characteristics

Aichi
Steel
JIS Chemical composition (wt.%) Remarks
C Si Mn Ni Cr Mo V W
SK3 SK105
(SK3)
1.05 0.25 0.30           Versatile carbon tool steel
SK301 SKS93 1.05 0.25 0.90   0.40       Oil quenching carbon tool steel
SKS3 SKS3 0.95 0.25 1.05   0.75     0.75 Versatile low alloy tool steel
SX105V - Aichi Brand Steel Low alloy cold work tool steel with excellent flame hardenability
(Flame-hardening steel)
SXACE - Aichi Brand Steel Cold work tool steel with superior toughness and excellent machinability
AUD15 SKD11
rev
Patent-approved Steel Cold work die steel with high hardness and toughness
AUD11 SKD11 rev Patent-approved Steel Cold work die steel with excellent TD treatment characteristics
SKD11 SKD11 1.50 0.20 0.40   12.00 1.00 0.35   Versatile cold work die steel

Cold work tool steel characteristics

SX105V Low alloy cold work tool steel with excellent flame hardenability

Supported standards Aichi Brand Steel flame-hardening steel
Type of steel SX105V

Product catalog

Features

SX105V is a flame hardening steel used widely in metal stamping dies for car body parts.
SX105V offers a wide range of proper heating temperature and optimal hardenability. After burner heating and following quenching in air. SX105V becomes easy to obtain consistent high hardness unlike in case of SKD11or SKS3.

(1)
Favorable flame hardenability
(2)
Favorable cutting characteristics
(3)
Favorable wear resistance
(4)
Favorable toughness
(5)
Favorable weldability

Major applications

Blanking dies, bending dies, drawing dies, cutting edges, wear resistant jigs, etc. (properties of the material especially good for cutting edges)

SXACE Cold work tool steel with superior toughness and excellent machinability

Supported standards Aichi Brand Steel cold work die steel
Type of steel SXACE

Product catalog

Features

SXACE has top performing toughness and machinability in this class of steels.

(1)
Favorable machinability
(2)
Favorable toughness
(3)
Favorable weldability

Major applications

All cold work press dies, punches, shear blades, wear resistant jigs, pins, etc. (In addition to applications of blanking dies where SX105V will not last, well-suited to bending and drawing dies)

AUD11 Cold work die steel with excellent TD treatment characteristics (made to order)

Supported standards Aichi Brand Steel SKD11rev
Type of steel AUD11

Product catalog

Features

AUD11with superior toughness can provide improved die life than SKD11: solving problems of cracking and chipping.
The excellent TD treatment properties enable improved wear resistance extending service die life even more.

(1)
Favorable toughness
(2)
Excellent hardenability
(3)
Favorable machinability
(4)
Small distortion after heat treatment

Major applications

Cold work press dies, shearing blades, cold forming rolls, threaded rolling flat dies/round dies, cold hobbing hobs, gauges, wear resistant jigs, etc.

AUD15 Cold work die steel with high hardness and toughness (made to order)

Supported standards Aichi Brand Steel SKD11rev
Type of steel AUD15

Product catalog

Features

AUD15 has high hardness (HRC62 to 63) and toughness and machinability superior to SKD11.

(1)
High hardness (tempered at 520 to 530℃ to HRC62 to 63)
(2)
Optimal wire-EDM
(3)
Favorable wear resistance

Major applications

Cold work press dies, shearing blades, cold forming rolls, threaded rolling flat dies/round dies, cold hobbing hobs, gauges, wear resistant jigs, etc.

SKD11 Versatile cold work die steel (standard steel type)

Supported standards JIS SKD11 equivalent
Type of steel SKD11

Product catalog

Features

SKD11 can be hardened in air or in pressurized gas in the vacuum furnace enabling minimizing of distortion caused by heat treatment and wire-EDM.

(1)
Small distortion after heat treatment
(2)
Optimal wire-EDM
(3)
Favorable wear resistance

Major applications

Cold work press dies, shearing blades, cold forming rolls, threaded rolling flat dies/round dies, cold hobbing hobs, gauges, wear resistant jigs, etc.

SKS3 Oil hardening low alloy tool steel (made to order)

Supported standards JIS SKS3 equivalent
Type of steel SKS3

Product catalog

Features

SKS3 is a type of steel with improved hardenability, toughness and wear resistance than SK3 by adding Mn, Cr and W.

(1)
Favorable hardenability
(2)
Favorable toughness
(3)
Favorable wear resistance

Major applications

Cold press dies, jigs, gauges, etc.

SK301 (JIS SKS93) Oil quenching carbon tool steel (made to order)

Supported standards JIS SKS93 equivalent
Type of steel SK301 (JIS SKS93)

Product catalog

Features

SK301 is a type of steel with better hardenability than SK3 by adding Mn and Cr, and oil quenching is available.

(1)
Favorable hardenability

Major applications

Cold press dies, jigs, gauges, etc.

Product inquiries

Phone

AICHI STEEL Corporation
Nagoya Office
Special Products Sales Department

TEL +81 (52) 603-9314

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