Mat.No. 1.7350, DIN 22CrMo4-4

Designation by Standards

Chemical Composition (in weight %)

Description
High-temperature structural steel.

Applications
Quenched and subsequently tempered steel, resistant at higher temperatures, forgings for turbine components up to working temperatures 530^oC. 

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 210 
Density [g/cm³]: 7.85

Soft Annealing
Heat to 650-720^oC, cool slowly in furnace.

Hardening
Harden from a temperature of 880-920^oC followed by oil quenching.

Tempering
Tempering temperature: 580-680^oC.

Hardenability Diagram

Click the image to enlarge the diagram.

Forging
Hot forming temperature: 1100-800^oC. 

Machinability
No data.

Forms manufactured: Please see the Dimensional Sales Program. 

Disclaimer
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.