World mould steel grade comparison table

In order to facilitate customers to choose and order mold steel materials more quickly and accurately, Lion Metal Technology Department specially edited this article to list the commonly used grades of mold steel at home and abroad. Its content involves American Finn Cola, Sweden ASSAB, Japan’s Datong, Japan’s Hitachi, Japan’s Sanyo, Japan’s High Frequency, Germany’s Saster, Germany’s Buderus, Sweden’s Wudholm, Austria’s Bailu Steel, Germany’s Germany Wei, Korea Heavy Industry, French USINOR, domestic mold steel and so on. If there are any shortcomings, we hope to leave your valuable comments, and our company will make corrections in time.

Comparison table of mold steel grades                              – on Shanghai Lion Metal Co., Ltd.
GradeCorresponding grades in various countriesSteel typeMain features and uses
China (GB)United States (AISI)Japan (JIS)Germany (DN)
Fen ColaA2Cr5Mo1VSKD121.2363Air quenching medium alloy cold work die steel
D2C12Mo1VSKD111.2379High carbon and high chromium cold work die steel
D3Cr12SKD11.2080High carbon and high chromium cold work die steel
M2W6Mo5Cr4V2SKH91. 3343Molybdenum high speed steel for cold work die
O1MnCrWVSKS31.2510Oil quenched cold working die steel
O29Mn2V1.2842Oil quenched cold working die steel
H104Cr3Mo3SiV1.2365American H series hot work die steel
H114Cr5MoSiVSKD61.2343American H series hot work die steel
H134Cr5MoSiV1SKD611.2344American H series hot work die steelWidely used in our country
H213Cr2W8VSKD51.2581American H series hot work die steelWidely used in our country
420SS4Cr13SUS 440CX 38C13Corrosion resistant plastic mold steelMartensitic stainless steel
440C11Cr17Corrosion resistant plastic mold steelMartensitic stainless steel
P203Cr2Mo1.2330Pre-hardened plastic mold steelWidely used in our country, the factory hardness is HRC30~42, suitable for large and medium-sized precision molds
DaidoDC11Cr12Mo1V1D2SKD11High wear-resistant air-quenched cold-working die steel
DC53Cr8Mo1VSiDC11 improvedHigh strength and toughness cold work die steelAfter high temperature tempering, it has high hardness, high toughness, and good wire cutting performance. It is used for fine blanking, drawing, thread rolling and cold blanking dies and punches.
GOASKS3 improvedSpecial cold work die steelHigh hardenability, good wear resistance, used for cold blanking dies, forming dies, punches, embossing
YK30O2SKS93Oil quenched cold working die steelCold stamping die
DH214Cr3Mo3VSiSteel for Aluminum Die Casting DieGood thermal fatigue cracking resistance, long service life of the mold
DH 2FH13 + SSKD61 improvementEasy-cutting pre-hardened die steelPre-hardened 37~41HRC, good toughness, used for complex and precise zinc hot-worked molds, such as aluminum, zinc die-casting molds, aluminum hot extrusion molds, and plastic molds
DH31SSteel for large die-casting moldsGood hardenability, resistance to thermal fatigue cracking and hot melt loss, used in aluminum, magnesium die-casting, aluminum hot extrusion and hot shearing, hot stamping die
DH42Steel for Copper Die Casting MouldUsed for copper alloy die casting and hot extrusion die
DHA14Cr5MoSiV1H13SKD611.2344General hot work die steelGood hardenability, resistance to thermal fatigue cracking and thermal melting loss, high tempering resistance, excellent high temperature impact performance
NAK55Mirror surface pre-hardened plastic mold steelFactory hardness HRC37~43, good cutting performance, used for high-precision mirror mold
NAK80Mirror surface pre-hardened plastic mold steelFactory hardness HRC37~43, good mirror polishing performance, used for high-precision mirror molds
PXZPre-hardened plastic mold steelFactory hardness HRC27~34, with good machinability and welding repairability, used for large-scale corrosion molds, instrument panels, and home appliance shell molds
PX4 PX5P20 modifiedMirror surface pre-hardened plastic mold steelFactory hardness HRC30~33, used for large mirror mold
S45C

S50C

S55C
SM45   SM48

SM50 SM53

SM55
Ordinary plastic mold steelOn the basis of high-quality carbon structural steel, after refining and vacuum degassing, the content of sulfur and phosphorus is controlled to be low, and it is used for non-important structural parts of molds, such as mold bases.
S-STARMartensiticCorrosion resistant mirror plastic mold steelHigh corrosion resistance, high mirror polishing, small heat treatment deformation, used for corrosion resistant mirror mold
G-STARCorrosion resistant plastic mold steelFactory hardness HRC33~37, with good corrosion resistance and machinability
ASSABDF-29Mn2VO2Good punching ability, small heat treatment deformation, used for small stamping dies, paper cutting blades
DF-39CrWMnO1SKS31.2510Oil quenched cold working die steelGood toughness retention ability, small quenching deformation, used for sheet die and embossing die
XW-10Cr5Mo1VA2SKD12Air quenched cold work die steelGood toughness, high wear resistance, small heat treatment deformation
XW-42Cr12Mo1V1D2High carbon and high chromium cold work die steelGood hardenability and toughness, high wear resistance, small heat treatment deformation, good tempering resistance
84074Cr5MoSiV1H13General hot work die steelUsed for hammer forging, extrusion, die-casting molds, and also for plastic molds
QRO-904Cr3Mo3VSiHot work die steelPatented steel, high strength at high temperature, good thermal conductivity, thermal shock resistance, thermal fatigue resistance, used for aluminum and copper die-casting dies, hot extrusion dies, and hot forging dies
6183Cr2MoP20Pre-hardened plastic mold steelWidely used in our country
716420SUS420J1Corrosion resistant plastic mold steelMartensitic stainless steel
7183Cr2Mo+ NiP20 + NiMirror plastic mold steelPre-hardened delivery, high hardenability, good polishing performance, electrical processing performance and leather texture processing performance, suitable for large mirror plastic molds, such as automotive, home appliances, audio and video products
S-1363Cr13 4Cr13Corrosion resistant plastic mold steelMedium-carbon high-chromium stainless steel, with good corrosion resistance, high hardness, and good polishability. It is used for molds with high requirements for corrosion resistance and wear resistance.
Austrian Bailu SteelK110Cr12Mo1V1D2High toughness and high chromium cold work die steelGood strength, hardness and toughness, used for heavy-duty stamping dies
K460MnCrWVO11.2510Oil quenched cold working die steelHigh strength, small heat treatment deformation, used for metal stamping dies
K100Cr12D31.2080High carbon and high chromium cold work die steelHigh wear resistance, excellent corrosion resistance, used for edge trimming, deep drawing, cold pressing, forming die of stainless steel sheet
W302Approximately H13Hot work die steelUsed for aluminum and zinc alloy hot extrusion and hot stamping dies
M202P20 typePre-hardened plastic mold steelFactory hardness HRC30~34, can be electro-processed
M238P20+Ni typeMirror plastic mold steelFactory hardness HRC30~34, good mirror polishing, M238H is more advanced
M300Corrosion resistant mirror plastic mold steelHas excellent corrosion resistance, high mechanical strength and wear resistance, and has excellent mirror polishing properties
M3104Cr13 typeCorrosion resistant mirror plastic mold steelHas excellent corrosion resistance, abrasion resistance, mirror polishing, used for transparent parts and optical product molds
Korea Heavy IndustriesSTD11Cr12Mo1V1D2 improvementSKD11Air quenched cold work die steelHD clarity, uniform hardness, high wear resistance, high strength
HDS-1H13 modifiedHot work die steelHas good strength and toughness and anti-tempering stability, used in die-casting molds and hot extrusion molds
STD61Approximately H13Hot work die steelHas good high-temperature strength and toughness, used for die casting, hot extrusion, and hot stamping dies
HAM-10Mirror plastic mold steelFactory hardness HRC37~42, good mirror polishing performance, used for transparent plastic part molds
HEMS -1A3Cr13 typeCorrosion resistant plastic mold steelFactory hardness HRC23~33, advanced mirror polishing performance, used for color display glass shell mold, PVC chassis mold
HP -1AOrdinary plastic mold steelGood processing performance, small processing variants, used in toy molds
HP -4A3Cr2MoPre-hardened plastic mold steelFactory hardness HRC25~32, uniform hardness, good processing performance
HP-4MAP20 modifiedPre-hardened plastic mold steelFactory hardness HRC27~34, uniform hardness, good wear resistance, used for various household appliances shell molds
HFH-17CrSiMnMoVFlame hardened die steelGood hardenability, good toughness and wear resistance, small heat treatment deformation, used for stamping dies and blanking dies for large inserts, and also used for working dies with large dynamic loads
STF -4M6F2 improvementDie steel for forgingHas excellent thermal shock resistance and high wear resistance, used for forging dies, hot stamping dies
DulwichGSW-2 3 7 9Cr12Mo1V1D21.2379High carbon and high chromium cold work die steelUsed for cold extrusion, stamping dies, and also for high wear resistance plastic molds
GSW-2 3 4 44Cr5MoSiV1H13 typeSteel for General Die Casting DieFor aluminum and zinc alloy die-casting molds
GSW-2 0 8 34Cr13 typeCorrosion resistant plastic mold steelHas good corrosion resistance, used for PVC material molds
GSW-2 3 11P20 typePre-hardened plastic mold steelFactory hardness HRC31~34, EDM can be used for large and medium-sized mirror plastic molds
GSW-2 3 1 64Cr16 typeCorrosion resistant plastic mold steelMartensitic stainless steel, factory hardness HRC31~34, with good corrosion resistance and mirror polishing, used for mirror plastic molds
GSW-2 7 3 8P20 + NiMirror plastic mold steelFactory hardness HRC31~34, uniform hardness, good polishing performance, used for large and medium-sized mirror plastic molds
French USINORCLC20834Cr13 typeCorrosion resistant mirror plastic mold steelGood corrosion resistance and mechanical strength, high hardenability and wear resistance, excellent mirror polishing, suitable for transparent plastic parts, optical products and molds containing corrosive materials
CLC2316H4Cr16 typeCorrosion resistant mirror plastic mold steelSame as above
CLC27383Cr2Mo+ NiPre-hardened mirror plastic mold steelApproximately 718
CLC2 7 3 8 HHHigh-grade mirror plastic mold steelHigher cleanliness than CLC2738, more uniform hardness, better mold performance, and long life
Oberduwa CLISP300Pre-hardened plastic mold steelGood processability, polishability and texture processability, used for home appliances and automobile plastic molds
SP400
SP2316
MEK4
XC42
XC45
XC48
XC55
ADC3
SMV4S
SMV3W
DH13
RussiaP18W18Cr4VT1SKH21.3355Tungsten High Speed ​​Steel for Cold Work Die