Hot worked tool steel H13

タイトルまたは説明

Related specifications

Europe EN 1.***4

Germany DIN X*0CrMoV**1

Great Britain BS ***9 BH*3

USA AISI H*3A

Japan JIS-SKD*1

GB/China 4Cr5MoSiV1

Chemical Analysis

C Mn Si Cr Mo V P S

0.***0.*0 0.**0.5 0.**1.0 4.**5.0 1.**1.3 0.**1.0 ≤0.**5 ≤0.**0

Applications

-General purpose hot worked tool steel used in aluminium extrusion dies, backers and

bolsters, stems and mandrels, die casting dies and forging inserts.

Die Casting

Dies

Dummy Blocks Extrusion Dies Hot

Forging Dies Heading Dies Hot Heavy Shear Blades

Inserts Mandrels Piercing Tools Hot

Plastic Mold

Dies

Punches Hot Swaging Dies Hot

Main feature: High tenacity, plasticity, thermostability and abrasive resistance.

Hardening

Hardening should be done in controlled atmosphere, vacuum or fluidized bed furnace.

Preheat gradually to **0/**0 ℃ then raise to ***0/***0℃, holding for sufficient time to

attain uniformity throughout the tool, air cooling.

Tempering: Tempering should be carried out immediately after air quenching. Heat to **0/**0℃,

holding for one to three hours. Tools benefit from multi-tempering and a minimum of two

tempers is recommended. Care should be taken to ensure tools cooling to room

temperature in between tempers. Also suitable for both bath and gas nitriding.

Conventional Smelt: EF+LF+VD+ESR

Available size

Type

Thickness

mm

Width/Diameter

mm

Length

mm

Block ******0 *******0 ********0

Round

bar

*****0 ********0

Delivery Condition

Hot forged, Spheroidizing annealed with hardness HB******0

atment

Temperature

Range

Cooling/Quenching Notes

Forging ********0° F Slow Do not forge below ***0° F. Anneal after forging.

Annealing ********5° F

Cool slowly at a

rate of *5° F per

hour to a ***0° F.

Protect against surface decarburization using

controlled atmosphere or by pack-annealing. Hold at

temperature for 2 hours.

Stress

Relieving

********0° F

Cool slowly in

furnace to **0° F.

Then in air.

Preheating ********0° F

Preheat time in furnace is ¾ Hr. per inch of thickness.

Heating up to temperature as slow as possible.

Hardening ********0° F

To minimize

distortion, air cool.

For maximum

hardness

diameters greater

than 6􀳦 should be

quenched in oil.

Soak time is *0 minutes per inch of thickness.

Minimum of 1 hour. Allow to cool to ******0° F before

tempering

Tempering In air.

Complete equalization of temperature throughout the

tools is essential for good results. Double temper.

Recommended temperature is ********0° F.