Shandong Laiduan Machinery Co.,ltd

Shandong Laiduan Machinery Co.,ltd  

Add:ZHAILI, LAIWU CITY-SHANDONG PROVINCE – CHINA

Con:Jun Li

Pho:(86)18606349977

Tel:(86)634 6512388

Fax:(86)634 6512388

Email:felix@laiwuforging.com

DIN 1.2344 Mould Steel Tool Steel for Hot Work

DIN 1.2344 Mould Steel Tool Steel for Hot Work

Mould steel is used in the world in many fields. Its strenght and resistance is better during the using process. 1.2344 is a kind of pressure resistant hot work tool and die steel. The electroslag remelting of the steel is of uniform material, good hardenability, excellent mechanical and...

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Details

Mould steel is used in the world in many fields. Its strenght and resistance is better during the using process. 1.2344 is a kind of pressure resistant hot work tool and die steel. The electroslag remelting of the steel is of uniform material, good hardenability, excellent mechanical and polishing properties, high toughness and plasticity, good high and low temperature wear resistance, and high temperature fatigue and heat resistance.


Features:

1. uniform material, excellent machinability and polishing properties

2. excellent high toughness and high plasticity

3. High wear resistance strength in low temperature high temperature

4. Excellent integrity

5. Good high temperature strength and thermal fatigue resistance

6. good at extremely low distortion

7. compared with the traditional steel to better, the the direction has excellent toughness and plasticity.


Heating treatment:

Forging

Softening annealing

quenching

tempering

1050-850℃

820-840℃

1020-1050℃

520-700℃


Technical specifications:

Purity

according to the ASTM E45 A, A = 0.5 B oxide, sulfide, C silicate and D spherical oxide each less than or equal to 1 or DIN 50602-K1 10 or according to customer requirements.

Steel production status

softening, annealing, good microstructure, hardness up to 229HB, or quenching and tempering to customer requirements.

Specification for isothermal annealing

The annealing temperature (850 + 10) C, 2h insulation, furnace cooling to (720 + 10) 4H C, thermal insulation, furnace cooling to 500 DEG C, followed by air cooling, the hardness is less than or equal to 229HBW.

Specification for high temperature tempering

Tempering temperature (730 + 10) C, 2h insulation, furnace cooling all is smaller than 500 DEG C, followed by air cooling.

Specification for quenching and tempering


Quenching temperature of 850 ~880 DEG C, oil cold, hardness 50 ~52HRC; tempering temperature 580 ~640 degrees C, baked air cold, hardness 28 ~36HRC

Specification for pre hardening treatment

The heating temperature of 860 DEG C ~900, oil cooling, tempering temperature of 570 ~70O ~ C, air cooling, tempering hardness of 28~35HRC.


Physical performance:

1. Density: 7.31g/cm

2. Coefficient of linear expansion:

Temp. 18 ~100℃/18 ~200°C/18 ~300°C/18 ~400°C/18 ~500°C/18 ~600℃/18 ~700℃, 11.9 ×10K/12.20 ×10K/12. 50×10K/12. 81 ×10K/13.11 ×10K/13.41×10K/13.71×10K

3. Modulus of elasticity: Temp. 20°C  212000MPa, the shear modulus (room temp.) 825000MPa, Poisson's ratio 0.288

4. Thermal conductivity: Temp. 20℃/100℃/200°C/300°C/400°C, thermal conductivity 36.0 [W/ (m·K)] /33.4[W/ (m·K)]/31.4[W/ (m·K)]/30.1[W/ (m·K)]/29.3[W/ (m·K)][2]

Chemical composition content

C

Si

Mn

P

S

Cr

MO

V

0.38-0.42

0.8-1.2

0.30-0.50

≤0.015

≤0.002

4.80-5.50

1.2-1.5

0.90-1.10


Ultrasonic inspection

ASTM A388-FBH max.3mm(1/8inch) or SEP 1921test group3-ciassE, or by customer’s requirements

Main uses:

1. die casting die (die, fastener, upper die, nozzle, nitriding thimble)

2. extrusion die (die, support stop block)

3. hot pressing die (aluminium, magnesium, copper alloy)

4. parts, such as cold shearing, flying edge, hot shearing and wearing parts


Corresponding grade

Japan: SKD61

USA: AISI H13

UK: BH13


Hot Tags: din 1.2344 mould steel tool steel for hot work, China, manufacturers, factory, process

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