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Element Content (%)
Iron, Fe 97.395-98.07
Manganese, Mn 0.700-0.900
Chromium, Cr 0.700-0.900
Carbon, C 0.380-0.430
Silicon, Si 0.150-0.300
Sulfur, S 0.0400
Phosphorous, P 0.0350

Physical Properties
Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in

Mechanical Properties
Properties Metric Imperial
Tensile strength 570 MPa 82700 psi
Yield strength 295 MPa 42800 psi
Elastic modulus 190-210 GPa 27557-30458 ksi
Bulk modulus (typical for steel) 140GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poissonâ??s ratio 0.27-0.30 0.27-0.30
Izod Impact 41.0 J 30.2 ft.lb
Hardness, Brinell 167 167
Hardness, Knoop (converted from Brinell hardness) 188 188
Hardness, Rockwell B (converted from Brinell hardness) 85 85
Hardness, Vickers (converted from Brinell hardness) 175 175

1.Specifications of 40cr steel
Round bar Diameter(mm) Length (mm)
20~800 3000~5800
Plate Thickness(mm) Width (mm) Length (mm)
Max:800 205~800 2000~4000
The specification can be customized.

2.Heat treatment of 40cr steel
Forging:1100~900â°c
Normalization:860~880â°c
Subcritical annealing:680~720â°c
Isothermal annealing:830~900 670x3hâ°c
Hardening:830~860 oil
Tempering:550~650â°c

3.Machanical properties
Tensile str. (n/mm2):1080
Yield point (n/mm2):930
Elongation (%):12
Contraction (%):45
Impack work (j/cm2):63
Hardness (hb):217

4.Characteristic of 40cr steel
Chromium molybdenum high tensile steel with yield strength of 550n/mm2.
Chromium renders steel oil hardenable and increase hardenability.
Weldability suffers with increasing chromium content.
High temperature strength and high pressure hydrogenation properties are
Promoted by chromium and molybdenum.
Molybdenum significantly reduces temper brittleness.

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1020
1.Hardness of annealing:
HBS=137~269
2.chemical composition
C P Cr Si Mn Ni
0.42~0.48 0.03(Max) 0.20(Max) 0.15~0.35 0.6~0.9 0.20(Max)
3.Regular specifications :
round bar
diameter(mm) length(mm)
10~600 2000~5700
flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
4. Process of Production
EAF+LF+VD+ESR+Forged or hot rolled+Heat Treatment(optional)

5. Condition of Surface
black/ rough machined/ turned/milled

6. Inspection
Ultrasonic Test , according to SEP1921 D/d or as your requirements
7. Technical Data :
According to the customer's requirement of Chemical Composition, MechanicalProperties. Material details will be as per agreed technical specifications
8.Applications
Used for making mould bottoms,plastic mould , normal mechinery parts and so on

Specification
1.Medium carbon cold heading die steel.
2.After heat treatment get toughness and wear resistance.
3.Good mechanical properties in tempering.
4.Suitable for surface-hardening treatment.

Shape:steel plate/flat bar/round bar
Technology:Hot work / Forged/cold drawn
Heat treatment:Annealed / Q+T
Surface condition:Black/Peeling/Polishing/Machined
Delivery condition:Hot rolled or forged, Peeled or black surface
Test:UT 100% / SGS
Certification:ISO/mill certificate

1.Hardness of annealing:
HBS=137~269
2.Surface treatment:black/peeling/polished/machined
3.Regular specifications :
round bar
diameter(mm) length(mm)
10~600 2000~5700
flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
4. Process of Production
EAF+LF+VD+ESR+Forged or hot rolled+Heat Treatment(optional)

5. Condition of Surface
black/ rough machined/ turned/milled

6. Inspection
Ultrasonic Test , according to SEP1921 D/d or as your requirements
7. Technical Data :
According to the customer's requirement of Chemical Composition, MechanicalProperties. Material details will be as per agreed technical specifications
8.Applications
Used for making mould bottoms,plastic mould , normal mechinery parts and so on

1.Regular specifications :
Round bar
Diameter(mm) length(mm)
10~600 2000~5700
Flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
2. Process of production
Eaf+lf+vd+esr+forged or hot rolled+heat treatment(optional)

3. Condition of surface
Black/ rough machined/ turned/milled

4. Inspection
Ultrasonic test , according to sep1921 d/d or as your requirements
5. Technical data :
According to the customer's requirement of chemical composition, mechanicalproperties. Material details will be as per agreed technical specifications
6.Applications
Used for making mould bottoms, plastic mould , normal mechinery parts and so on

1.Regular specifications :
Round bar
Diameter(mm) length(mm)
10~600 2000~5700
Flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
2. Process of production
Eaf+lf+vd+esr+forged or hot rolled+heat treatment(optional)

3. Condition of surface
Black/ rough machined/ turned/milled

4. Inspection
Ultrasonic test , according to sep1921 d/d or as your requirements
5technical data :
According to the customer's requirement of chemical composition, mechanicalproperties. Material details will be as per agreed technical specifications
6.Applications
Used for making mould bottoms, plastic mould , normal mechinery parts and so on

1.Regular specifications :
Round bar
Diameter(mm) length(mm)
10~600 2000~5700
Flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
2. Process of production
Eaf+lf+vd+esr+forged or hot rolled+heat treatment(optional)

3. Condition of surface
Black/ rough machined/ turned/milled

4.Inspection
Ultrasonic test , according to sep1921 d/d or as your requirements
5. Technical data :
According to the customer's requirement of chemical composition, mechanicalproperties. Material details will be as per agreed technical specifications
6.Applications
Used for making mould bottoms, plastic mould , normal mechinery parts and so on

1.Hardness of annealing:
Hbs=137~269
2.Chemical composition
C p cr si mn ni
0.42~0.48 0.03(max) 0.20(max) 0.15~0.35 0.6~0.9 0.20(max)
3.Regular specifications :
Round bar
Diameter(mm) length(mm)
10~600 2000~5700
Flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
4. Process of production
Eaf+lf+vd+esr+forged or hot rolled+heat treatment(optional)

5. Condition of surface
Black/ rough machined/ turned/milled

6. Inspection
Ultrasonic test , according to sep1921 d/d or as your requirements
7. Technical data :
According to the customer's requirement of chemical composition, mechanicalproperties. Material details will be as per agreed technical specifications
8.Applications
Used for making mould bottoms, plastic mould , normal mechinery parts and so on

Songshun mould steel deal in different types of our advantage products include mould steel and minerals & metallurgy products.
1.Size of 5140 alloy steel
Diameter(mm):20~600 length (mm):1000~6000
Plate
Thickness(mm):max:800 width (mm):max:2200 length (mm):max:6000
The specification can be customized.
2.Chemical compositions
C:0.37-0.44 si:0.20-0.40 mn:0.50-0.80 p:max 0.035 s:max 0.035 cr:0.80-1.10
3.Similar grade
Gb:40cr aisi:5140 din:1.7035 jis:scr440
4.Feature of 5140 steel
(1)medium carbon cold heading die steel.
(2)after heat treatment get toughness and wear resistance.
(3)good mechanical properties in tempering.
(4)suitable for surface-hardening treatment.
5.Application
For all kinds of bearings, various machine parts, screw and nuts, transmission parts.
6.Min.Order quantity:5 ton/tons our moq is flexible
Supply capacity:5000 ton/tons per month
Or based on the clients' demand
Port:shenzhen
Payment terms:l/c, d/p, t/t
7.Packaging & delivery
In seaworthy packingï¼? 20ft:gw 28t; (5.80m*2.13m*2.18m); 40ft:gw28t; (11.8m*2.13m*2.18m) or based on your order
Shipped in 15 days after payment
8.Special use:mold steel
9.Surface treatment:black/polished/machined
Technology:hot rolled/forged/cold drawn
Heat treatment:annealing/q+t

1,Sizeof1.2311alloysteel
Roundbardiameter(mm)length(mm)
20~8003000~9000
Plate
Thickness(mm)width(mm)length(mm)
Max:800max:2200max:9000
Equivalentgrades Gb Din Aisi Jis -
3cr2mo 1.2311 P20 - -
Chemical
Composition
C Si Mn Cr P S Mo
0.35-0.45 0.20-0.40 1.30-1.60 1.80-2.10 0.030 0.035 0.15-0.25 - -
Smelting&shaping Ef/esr+hotforged/hotrolled
Surfacecondition Blacksurface/grinded/machined
Annealedhardness 50-54hrc

Characteristics
Goodtoughnessproperties, Easytomachine, Betterpolishabilitythan1.2312,
Dimensionalstabilityflamehardenable, Goodphotoengravingproperties

Applications
Plasticmoulds, Framesforplasticpressuredies, Hydroformingtools

Heattreatmentannealing Heatto720 •750 °cfor2 •4hfurnacecool.
Stressrelieving Upto560 •600 °c, Holdfor2 •4h;furnaceorstillaircooling.
Tempering Tobecarriedoutafterhardeningintherange580 •650 °cfor25mmofthicknessminimum2h.

Chemical composition(%)

C Mn S P Cr V Mo W
0.70~0.80 0.10~0.40 â?¤0.030 â?¤0.030 3.75~4.50 0.80~1.20 0.40~1.00 17.50~19.00
Co Si
4.25~5.75 0.20~0.40
Properties & Aplication
1.Carbon tool steel can be obtained with high hardness and wear resistance.

2.Can be used for making tools with high hardness, flexibility,Wear-resisting performance .
such as punch, blade.

3.used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,
chemical industry,

We have powerful production capacity
We have first-class equipment
Why we deserve to be believed

Our service
* Inquiry and consulting support *Sample testing support
*View our factory *Serving custom product according to your order

1.Shapesteel plate/flat bar/round bar
2.TechnologyHot work / Forged/cold drawn3.Regular specifications :
3.round bar
diameter(mm) length(mm)
10~600 2000~5700
flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
4. Process of Production
EAF+LF+VD+ESR+Forged or hot rolled+Heat Treatment(optional)

5. Condition of Surface
black/ rough machined/ turned/milled

6. Inspection
Ultrasonic Test , according to SEP1921 D/d or as your requirements
7. Technical Data :
According to the customer's requirement of Chemical Composition, MechanicalProperties. Material details will be as per agreed technical specifications
8.Applications
Used for making mould bottoms,plastic mould , normal mechinery parts and so on

1.Regular specifications :
Round bar
Diameter(mm) length(mm)
10~600 2000~5700
Flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
2. Process of production
Eaf+lf+vd+esr+forged or hot rolled+heat treatment(optional)

3. Condition of surface
Black/ rough machined/ turned/milled
4.Condition of surfaceblack/ rough machined/ turned/milled
6. Inspection
Ultrasonic test , according to sep1921 d/d or as your requirements
7. Technical data :
According to the customer's requirement of chemical composition, mechanicalproperties. Material details will be as per agreed technical specifications
8.Applications
Used for making mould bottoms, plastic mould , normal mechinery parts and so on

1,Size of Steel grade 1.2379 mechanical properties
Round bar
Diameter(mm)
Length (mm)

Max:800
Max: 9000

Plate
Thickness(mm)
Width (mm)
Length (mm)
Max:800
Max:1000
Max:6000
The specification can be customized.
2,Chemical Compositons
C Si Mn P S Cr Mo
1.40-1.60 â?¤0.60 â?¤0.60 â?¤0.030 â?¤0.035 â?¤ 0.03 0.70-1.20
3,Features of Aisi D2 Steel
1, High carbon high chromium tool steel
2, High wear resistance and toughness
3, Offers a measure of corrosion resistance when polished
4, Alternative to oil hardening tool steel

4,Typical Applications
1, Wide variety of tool making applications
2, Blanking dies and punches
3, Deep drawing dies, cupping dies, forming dies, sheet metal forming rolls
4, Master hobs for cold hobbing moulds and cut moulds for plastics

Material capabilities: aluminum, stainless steel, steel alloys, ns self-lubricating, high temperature resistance, hard-wearing alloy .Micro machining or not: micro machining

1.Hardness of annealing:
Hbs=137~269
2.Chemical composition
C p cr si mn ni
0.42~0.48 0.03(max) 0.20(max) 0.15~0.35 0.6~0.9 0.20(max)
3.Regular specifications :
Round bar
Diameter(mm) length(mm)
10~600 2000~5700
Flat steel
Thickness(mm) width(mm) length(mm)
8~700 205~1000 2000~6000
4. Process of production
Eaf+lf+vd+esr+forged or hot rolled+heat treatment(optional)
5. Condition of surface
Black
Rough machined
Turned/milled
6. Inspection
Ultrasonic test , according to sep1921 d/d or as your requirements
7. Technical data :
According to the customer's requirement of chemical composition, mechanicalproperties. Material details will be as per agreed technical specifications
8.Applications
Used for making mould bottoms, plastic mould , normal mechinery parts and so on

Performance characteristics:
Cold work mould steel, quench-hardening ability, the hardness of tempering, wear resistance and strength are better than cr12.

Applications:
All kinds of cold blunt mould and tools, such as punching concave die, trimming, roll mould, steel plates,deep drawing die, circular saws, standard tools and gauge, thread rolling mould and so on.

Chemical Composition (%):
C 1.45 1.70 Si 0.40 Mn 0.40
S 0.030 P 0.030 Cr 11.00 12.50
Ni 0.25 Cu 0.30 V 0.15 0.30
Mo 0.40 0.60

Heat Treatment Standard:
1) Quenching, 950 ~ 1000 centigrade cold oil
2) Quenching 1020 , 200 tempering 2 hours.

Mechanical properties:
Hardness: annealing, 255 ~ 207 HB, creasing diameter 3.8 ~ 4.2 mm; Quenching,more than or equal to 58 HRC
Delivery status: Annealing.



Under the client's requirement.

Specification
1. High carbon stainless steel.
2. A level of corrosion resistance properties.
3. Good Rockwell hardness when heat treated.
Application
1. Widely used in the medical and cutlery industries.
2. Instruments, knives and hand tools.
3. Pump shafts and plastic moulds.
Chemical composition

What are details of P20
Name GB 3Cr2Mo/AISI P20/DIN 1.2311/JIS SCM4
Features
1. Excellent polishability and photo-etched flowers.
2.Good processing and polishing properties
3.Good toughness and good machining perrormance
Representative products
1. Making medium and large plastic injection dies and mold base
2. Thermoplastic plastic injection mold,extrusion die.
3. Heavy mold main components of thermoplastic plastic blow molding mold,cold structure parts.
4. Making of TV cabinets,washing machine,refrigerator inner shell.
Sizes According to your requirments
Packing Normal packing or according t customer's requests.
Price The price will change according to the weight of the steel you need.
Chemical composition(%)
C Si Mn P S Cr Mo
0.35-0.45 0.20-0.40 1.30-1.60