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Din 1.2738 Tool Steel

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  • Din 1.2738 Tool Steel
  • DIN 2738 Mould Steel
  • Plastic Mould Steel 1.2738
from 1957 Existence
Stock 3500 Tons Stock
 
Grades 35+ Grades
Customers 1200+ Customers

Standards : 40CrMnNiMo8-6-4

DIN 2738

P20+Ni
AISI P20+Ni
C 0.42 Mn 1.50 Cr 1.95 Ni 1.10 Mo 0.20

 

Grade Brief:

DIN 1.2738 is specially used for Plastic injection die moulds. The characteristics of a material are right sharpening, photo-etching properties with high purity and good homogeneity. DIN 2738 is upgraded version of plastic mold steel 0f 2311, which normally supply in Pre hardened condition. Hardness in as supplied condition 280-320 HB with having uniform hardness. The additional nickel content of 1 % increases through hardening. It has good machinability, suitable for Texturing, fine polishability, adequate corrosion resistance, vacuum-degassed steel.

 

DIN 2738 High Hard ( HXM 24 )

The modified version of 2738 is with High Hardness 360-400 BHN and increase alloy elements to get extra life and outstanding polishing.

 

DIN 2738 steel is a type of plastic mold steel that is similar to P20+Ni /AISI P20+Ni Tool Steel. The alloying elements for hardness and toughness include nickel, chromium, and molybdenum. DIN 2738 tool steel is intended specifically for the plastic mold industry, particularly for large steel mold components. DIN 2738 tool steel is often provided pre-hardened/quenched and tempered in the 280 - 320 HB hardness range. This makes it a great choice for applications involving high-temperature settings and difficult mechanical conditions.

 

DIN 2738 steels have superior polishability compared to 1.2312 (AISI P20+S) and better machinability. To enhance the hardness and wearability of the mould surface material , it can be treated with nitrogenation and flame hardening. DIN 2738 steel is melted in an electrical furnace and refined using a VOD or DH equipment.


Mode of Supply

Virat Special Steels is the largest stockiest and supplier of DIN 2738 Steel in flat, square and round bar. We provide steel in all sizes as your requirements. DIN 2738 die steel is available in flat, square and round shape. Consult our team who will assist you for DIN 2738 steel query.

 

DIN-2738-steel

Steel Properties

DIN 2738 is upgrade version of plastic mold steel 0f 2311, which normally supply in Pre hardened condition. Hardness in as supplied condition 280-320 HB. The additional nickel content of 1 % increases through hardening. It is micro-alloyed. It has good machinability, suitable for texturing, outstanding polishability, adequate corrosion resistance. vacuum-degassed steel with the following excellent features.

 

Mechanical Properties:
Tensile Strength 850 MPa-1100MPa
Yield Strength 770-980 MPa
Hardness 235 HB
Elongation 13%-16%
Impact Toughness 20 J/cm2-42 J/cm2
Modulus of elasticity 205 x 10³N/mm2

 

Physical Properties

The physical properties can vary slightly depending on the specific composition and heat treatment of the P20+Ni /DIN 2738 /AISI P20+Ni steel. It's always recommended to refer to the manufacturer’s specifications for precise information.

 

Coefficient of thermal expansionat °C 20-100 20-200 20-300 20-400 20-500 20-600 20-700
10-6 m/(m*K) 11.2 12.8 13.5 13.7 14.3 14.7 14.9

 

Thermal Conductivity at °C 20 350 700
W/(m*K) 35 34 33

Heat Treatment & Processes:

Heat Treatment

P20+Ni / DIN 2738 / AISI P20+Ni is already pre-toughened, thus no heat treatment is necessary if no particular needs exist.

 

Hardening:

Harden from 840-870°C, followed by oil, and finally quench in oil/hot bath/air 180-220 °C. The hardness after quenching is approximately 52 HRC.

 

Tempering:

After hardening, slowly heat the part to the tempering temperature; the minimum duration in the furnace is one hour for every 20 mm of part thickness; two tempering is advised.

 

Forging:

1093-898 °C.

 

Stress Relieving:

Approx. 650°C.

 

Normalizing:

Approx 900°C

 

Annealing:

The maximum Brinell hardness will be 235 after being heated to 710 to 740 °C for 2 to 5 hours, and then gently cooled to 600 °C additional cooling in air.

 

Welding:

For the welding process , P20+Ni tool steel conventional methods are used.

 

Quenching:

840-870 °C.

 

Soft annealing °C Cooling Hardness HB
710 – 740 Furnace max. 235

 

Hardening °C Quenching Hardness after quenching HRC
840 – 870 Polymer or oil 51

 

Tempering °C after Quenching 100 200 300 400 500 600 700
HRC 51.5 50.2 48 46.2 43 39 29

DIN 2738
P20ni

Application

DIN 2738 is applicable for large & small plastic mould dies for Automotive Industries, Dies for Domestic goods , High finishing plastic Die, Boaster Plates of Presses, Die Holders & Shoe blocks for drop Hammers, Press Cassettes , Upsetter Blocker, forging dies, Different dies & mold for plastic products etc.

 


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Addition to other Grades:

HCHCR-D2 Steel , HCHCR-D3 Steel , P20+Ni Steel , P20 Steel , DB6 Steel , H13 Steel, H11 Steel, H21 Steel, H10 Steel, H12 Steel, M2 Steel, M35 Steel, M42 Steel, T1 Steel, DIN 2379 Steel, DIN 2080 Steel, DIN 2738 Steel, DIN 2311 Steel, DIN 2714 Steel, DIN 2344 Steel , DIN 2343 Steel, DIN 2581 Steel, DIN 2365 Steel, DIN 2606 Steel, DIN 3343 Steel, DIN 3243 Steel, DIN 3247 Steel, DIN 3355 Steel AISI D2 Steel, AISI D3 Steel, AISI P20+Ni Steel, AISI P20 Steel, AISI L6 Steel , AISI H13 Steel, AISI H11 Steel, AISI H21 Steel, AISI H10 Steel, AISI H12 Steel, AISI M2 Steel, AISI M35 Steel, AISI M42 Steel , AISI T1 Steel

 

 

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