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Quenched straight (pre hard straight)

DIN
ASTM
JIS
GB
Factory hardness
Feature
The main purpose
1.2344
H13
SKD61
4Cr5MoSiV1
PrehardenedHRC40-46 HRC50-55
Can produce finished thimble; has good toughness and resistance to fracture properties; produce flat thimble does not warp, no deformation.
Heat thimble, extrusion dies, stamping dies
1.2344+S
H13+S
FDAC
4Cr5MoSiVS
PrehardenedHRC36-40 HRC38-42
Division tube can be produced (the push tube); has good cutting and machining performance, thus avoiding the thin Division tube from being deformed due to the heat treatment
Division tube, extrusion dies, stamping dies
1.3343
M2
SKH51
W6Mo5Cr4V2
PrehardenedHRC58-62
Can produce finished thimble, high wear resistance, high toughness
Suitable for making high-precision long life thimble
1.8507
----
SACM645
38CrMoAl
PrehardenedHRC32-36 HRC40-45
Has good mechanical properties, surface hardness after nitriding minimum 800HV
Thimble, Division tube
1.2516
----
----
WV
PrehardenedHRC62-66
Can replace high-speed steel and D2 steel
Thimble、Drift
1.2210
----
----
T12CrV
PrehardenedHRC58-64
Better toughness
Thimble、Drift
----
----
SUH3
4Cr10Si2Mo
PrehardenedHRC26-32
Temperature
For the internal combustion engine intake valves, light-load engine exhaust valve
1.7035
5140
----
40Cr
PrehardenedHRC28-36
Heat treatment has good toughness, ductility and wear resistance
Precision parts, shaft, rod
1.7225
4140
SCM440
42CrMo
PrehardenedHRC32-36或HRC40-45
This steel has high strength and toughness, high hardenability
Precision parts, shaft, rod
1.4006
410
SUS410
1Cr13
PrehardenedHRC26-32
Welding with a strong
Precision parts, shaft, rod
1.4021
420
SUS420J1
2Cr13
PrehardenedHRC26-32
With good toughness and cold deformation resistance, high hardness than 1Cr13
Precision parts, shaft, rod
1.4005
416
SUS416
Y1Cr13
PrehardenedHRC26-32
Strength after heat treatment and machinability better than the 304 and 316
Mainly used for solenoid valves, micro motor and electrical components production