1.2764 X19NiCrMo4 Tool Steel For Plastic Mould

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Heat Treatment
Cold Processing
Hot Working

1.2764 X19NiCrMo4 Tool Steel For Plastic Mould


1.2764 X19NiCrMo4 Tool Steel For Plastic Mould

1.2764 X19NiCrMo4 is Case hardening steel,when hardened high core strength,good polishability in hardened condition.

Applications:

Press tools,highly stressed plastic moulds,profiling rolls.

Condition of delivery:

Soft annealed to max.250 HB

Chemical composition(mass fraction)(wt.%)

ElementsMin.(≥)Max.(≤)
C0.160.22
Si0.100.40
Mn0.150.45
P0.030
S0.030
Cr1.101.40
Mo0.150.25
Ni3.804.30
W0.300.50

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 of grade 1.2764

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated ConditionHBW
373 (≥)646 (≥)223333Solution and Aging, Annealing, Ausaging, Q+T,etc233

Physical properties(average values)at ambient temperature

Modulus of elasticity[103x N/mm-]:210

Density [g/cm3]:7.80

Soft Annealing

Heat to 620-660C,cool slowly in furnace.This will produce a maximum Brinell hardness of 255.

Intermediate Annealing

Temperature:600-630C.

Carburizing

Temperature:860-890C.

Hardening

Harden from a temperature of 780-810C followed by oil quenching or thermal bath at 180- 220C.

Tempering

Tempering temperature:150-180C.

Forging

Hot forming temperature:1050-850c.