1.2345 X50CrVMo51 Hot Work Tool Steel

1.2345 X50CrVMo51 Hot Work Tool Steel

1.2345 is a 5%chromium hot work tool steel designed particularly for applications requiring extreme toughness combined with good red hardness.It provides an extra margin of safest in tools subject to heavy hammer blows,and those tools containing deep recesses or sharp corners.While 1.2345 has been designed primarily as a hot work tool steel,it has been used in many cold work applications where extra toughness is required at the sacrifice of some wear resistance.

We can provide more services:

1、Hardening and tempering
2、Vacuum heat treatment
3、Polished bright surface
4、Milling bright surface
5、CNC machine
6、Deep drilling
7、Cut into small pieces
8、Make it closer to the mold
Welcome to inquiry price from drawing

Cutting:

Precision cutting to standard dimensions

Custom cutting according to client specifications

Surface Grinding/Polishing:

Thickness tolerance: -0 to +0.1mm

Flatness: 0.01/100mm

Surface roughness: Ra ≤1.6 or Rz ≤6.3

Applications

1.2345 has been used primarily for tools requiring resistance to softening at elevated temperatures.Such tools include forging dies and punches,die-casting dies,aluminium extrusion dies,hot heading dies,piercing and forming punches,etc.

Chemical composition (wt.%)

Smelting Option

1 EAF: Electric Arc Furnace

2 EAF+LF+VD: Refined-smelting and vacuum degassing

3 EAF+ESR: Electro Slag Remelting

4 EAF+PESR: protective atmosphere Electro Slag Remelting

5 VIM+PESR: Vacuum induction melting

Forming Option

1 Hot rolling process

2 Hot Forging: Electro-hydraulic; High-speed-hydraulic; Oil-hydraulic; Precision-forging

Heat-treatment Option

1 +A: Annealed (full/soft/spheroidizing)

2 +N: Normalized

3 +NT: Normalized and tempered

4 +QT: Quenched and tempered (water/oil)

Suface Option

1 Black Surface

2 Grounded: Bright but rough ; Not precision

3 Machining for plate: Bright and precision; Little turning scar

4 Peeled/Turned: Bright and precision; Little turning scar

5 Polished: Very Bright and precision size; Not turning scar

Other Services

1 Cutting: Small pieces

2 CNC Machine: Produce as your drawing

3 Package: Bare/Nylon/Canvas/Wooden

4 Payment:T/T, L/C, O/A(request credit)

5 Transport:FOB/CFR/CIF/DDU/DDP (train/ship/Air)

Mechanical Properties

Physical properties(average values)at ambient temperature

Modulus of elasticity[103x N/mm]:215

Density [g/cm3]:7.70

Thermal conductivity[W/m.K]:25.0

Electric resistivity[Ohm mm/m]:0.52

Specific heat capacity[J/g.K]:0.46

Soft Annealing

Heat to 760-8200C,cool slowly in furnace.This will produce a maximum Brinell hardness of 250.

Stress Relieving

To relieve machining strains for greater accuracy in hardening,first rough machine,then anneal

below the critical 649/677C a minimum of one hour at temperature,and cool very slowly,

followed by finish machining.

Hardening

Harden from a temperature of 1000-1040C followed by air,oil warm bath(450-550%C)

quenching.Hardness after quenching is 54-58 HRC.

Forging

Heat slowly and uniformly to a temperature of between 1093/1135C and forge.Do not work

the steel below 927C.Reheat as often as necessary.

Machinability

The machinability of 1.2345 may be rated between 55%and 65%of a 1%carbon water

hardening tool steel,or about 40%to 50%of B1112.

Weldability

To salvage tools and dies by welding,preheat to 538c in a furnace and weld with uncoated arc

equipment(atomic hydrogen or heliarc).Keep the temperature of the die above 316C at all

times by reheating until the welding is completed.Upon completion of the weld,return the

work piece to the preheating furnace,equalize,and cool in the furnace.Welding should be

performed in the annealed condition.However,if welding is performed in the hardened

condition,the tool should be retempered at 538C after hardening.The electrode material used

in the weld rod should be of similar analysis to the base material.