4Cr5MoSiV

Description

4Cr5MoSiV 是空淬硬化热作模具钢,相当于美国的H11钢,它的性能以及使用寿命都比3Cr2W8V钢高。

4Cr5MoSiV is an air quenched and hardened hot working die steel,Equivalent to H11 grade steel in the United States. Its performance and service life are higher than 3Cr2W8V steel.

Worldwide equivalents of grade:4Cr5MoSiV

country / regionChinaEUGermanyJapanFranceEngland
StandardGBENDIN,WNrJISAFNORBS
Grade4Cr5MoSivX37CrMoV5-1 (1.2343)X38CrMoV5-1SKD6X38CrMoV5-1BH11
country / regionPolandCzechiaAustriaRussiaInterUSA
StandardPNCSNONORMGOSTISO
GradeWCL19552/19553W3004KH5MFSX37CrMoV5-1H11
 

Chemical Composition of 4Cr5MoSiV Steel Material

 CSiMnSPCrNiCuVMo
%0.33-0.430.80-1.200.20-0.500.30 MAX0.30 MAX4.75-5.500.250.30.30-0.601.10-1.60
MAXMAX

Physical properties of 4Cr5MoSiV:

Density7.69t/mHardness: Annealing≤235HB
Mass heat capacity at constant pressure CP459.8J/(kg·K)Indentation diameter≥3.95mm

Critical temperature of 4Cr5MoSiV steel:

Critical pointAc1Ac3Ar1Ar3MsMf
Temperature/℃853912720773310103

Linear expansion coefficient of 4Cr5MoSiV steel:

temperature/℃20~10020~20020~30020~40020~50020~60020~700
Linear expansion coefficient/℃10.0×1010.9×1011.4×1012.2×1012.8×1013.3×1013.6×10

Thermal conductivity of 4Cr5MoSiV steel:

temperature/℃100200300400500600700
Thermal conductivity /W·(m·K)25.927.628.428.027.626.725.9

Elastic modulus of 4Cr5MoSiV steel:

temperature/℃20100200300400500
Elastic modulus E/MPa227000221000216000208000200000192000

Heat treatment:

Quenching, preheating at 790 ± 15 ℃, heating at 1000 ± 6 ℃ or 1010 ± 6 ℃, holding for 5 ~ 15min, air cooling and tempering at 550 ± 6 ℃.

Application:

适用于作铝合金压铸模、热挤压和穿孔用的工具和芯棒、模锻锤锻模、压力机锻模、高速精锻模和塑压模等.

也可以用作飞机、火箭等工作温度在400~500 ℃之间的结构零件。

 It is suitable for tools and mandrel for aluminum alloy die casting die, hot extrusion and perforation, die forging hammer die, press die, high-speed precision forging die and plastic die, etc;.

It can also be used as structural parts with working temperature between 400 ~ 500 ℃ such as aircraft and rocket.

Available Size

Round BarDiameter(mm): 6-800mm ,Length: 1000-12000mm or custom size
Plate/Flat/BlockThickness: 6mm-500mm , Width: 20mm-1000mm or custom size
Tolerance±1%,Thickness: +/-0.02mm, Width:+/-2mm

Description

Equivalent Grade

   Steel 4Cr5MoSiV (GB )   and its European equivalent X37CrMoV5-1 (1.2343) ( EN )

EU
EN
USA
Germany
DIN,WNr
Japan
JIS
France
AFNOR
England
BS
Italy
UNI
China
GB
Poland
PN
Czechia
CSN
Austria
ONORM
Russia
GOST
Inter
ISO
X37CrMoV5-1 (1.2343)H11X38CrMoV5-1SKD6Z38CDV5BH11X37CrMoV5-1KU4Cr5MoSiVWCL1955219553W3004KH5MFS

Chemical Composition

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)V(%)Cu(%)
0.33~0.430.80~1.200.20~0.50≤0.030≤0.0304.75~5.50≤0.201.10~1.600.30~0.60≤0.30

Mechanical Properties

Tensile strength299~000σb/MPa
Yield Strength426σ 0.2 ≥/MPa
Elongation83δ5≥(%)
ψψ≥(%)
AkvAkv≥/J
HBS527~491
HRC30

Physical Properties

Thermal expansion47-86e-6/K
Thermal conductivity55-40W/m.K
Specific heat450-460J/kg.K
Melting temperature3297-1959째C
Density5731-6943kg/m3
Resistivity0.50-0.60Ohm.mm2/m

Heat Treatment Specification

 Heat Treatment of SAE/AISI H11 Steel

  • H11 Steel Annealing

Slowly heat to 843℃ – 898℃(1550-1650°F),then slowly Cool to 538℃(1000℉) in heat treatment furnace. Then cool in air. After annealing hardness HBS: 235 Max

  • H11 tool Steel Hardening

H11 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. The temperature employed is usually 1800°-1850°F, depending on size section.

  • Quenching of H11 Steel material

ASTM H11 steel Quenching temperature / ℃ | salt bath furnace: 996

AISI H11 steel Quenching temperature / ℃ | controlled atmosphere furnace: 1010

The heat preservation time/min: 5 ~ 15

Quenching medium: air cooling

  • Tempering Of H11 Steel

Tempering temperature / ℃ : 552

After tempering hardness HRC or higher: 52

Shapes and dimensions

Delivery Status

Applications

8. Application of Sae AISI H11 tool Steel

1, Application for Hot Extrusion Mold

As Dies, liners, Die holder Backers, Aluminium Extrusion mould, Copper alloy mold, stainless products mold Etc.

2, Application for Plastic Mold Tool

Like Large Injection molds compression, Thick wall plastic molds, Etc.