W302 Steel

W302 Steel

Steel name: W302
Diagram No.: 2272
Mat.No. (Wr.Nr.) designation: ~1.2344
DIN designation: X40CrMoV5-1
AISI/SAE designation: H13
JIS designation: SKD61
Chemical composition in weight %: XXX
Steel group: Hot work tool steels
Properties: Hot work tool steel featuring excellent hot tensile properties, high hot wear resistance, adequate toughness and heat checking resistance; admits water cooling.
Applications: Heavy duty hot work tools and dies, mainly for light alloy processing: mandrels, dies, and containers for metal tube and rod extrusion; hot extrusion equipment; tools and dies for the manufacture of hollow bodies, screws, rivets, nuts and bolts. Die casting equipment, forming dies, die inserts, hot shear blades, and plastic moulding dies.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 1020 to 1080°C (1868 to 1976°F) Oil, salt bath (500 - 550°C / 932-1022°F), air, vacuum Holding time after temperature equalization: 15 to 30 minutes. Obtainable hardness: 52 - 56 HRC in oil or salt bath, 50 - 54 HRC in air or vacuum.
Tempering: Slow heating to tempering temperature immediately after hardening / time in furnace 1 hour for each 20 mm of workpiece thickness but at least 2 hours / cooling in air. It is recommended to temper at least twice. A third tempering cycle for the purpose of stress relieving may be advantageous 1st tempering approx. 30°C (86°F) above maximum secondary hardness. 2nd tempering to desired working hardness. The tempering chart shows average tempered hardness values. 3rd for stress relieving at a temperature 30 to 50°C (86 to 122°F) below highest tempering temperature.
Diagram note: Hardening temperature: 1050°C (1922°F). Specimen size: square 50 mm.

Tempering Diagram

Price: 20.00 US $
Buy Online Tempering Diagram

Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

Disclaimer: The material data is a central depository of information based on global actual tests and calculated software data that is available to the public for a fee. The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.