1.2738 mod TS

Delivery method : Hardened and tempered 280-325 HB

1.2738 mod TS (HH)*

Delivery method : Hardened and tempered 310-355 HB

~26MnCrNiMo 6-5-4

(*)High Hard

Areas of Usage : It is a new generation plastic mold steel with high hardness, excellent toughness and polishability due to its low carbon, purified internal structure and special production methods. Despite its high hardness, this material, which has excellent machinability, can be subjected to nitration under required conditions to increase surface hardness. Due to the uniform hardness distribution between the surface and the core, it gives excellent results in large and deep form molds; There are two types depending on the breeding value.

• 1.2738 mod TS ( 280-325 HB)

• 1.2738 mod TS (HH) (310-355 HB)

Chemical Composition (%)

C

Si

mn

S

P

cr

Ni

B.C

V

% Distribution

0.26

0.10

1.45

0.002

0.015

1.25

1.05

0.60

0.12

Thermal Conductivity ( W/ m.K )

20°C

350°C

700°C

17.2

21.0

24.7

HEAT TREATMENT DATA

temperature(°C)

Duration (Hour)

Cooling Environment

Soft Annealing

680-720

2-5*

In the oven

Stress Relief

560-600

2*

In the oven

Hardening

850-880

-

Oil, hot bath 180-220°C, Air

tempering

620-650

1 hour for every 20 mm

Weather