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Heat-treatable steels
Quality 1.7225
Grade
42CD4
AISI/UNS + Alloy
AISI 4140/4142, UNS G41400/G41420, F41450
Material Specifications
EN 10083-3, EN 10277-5, EN10269 ISO 898 FK 10.9,ISO 898 FK 8.8, ISO 683-3, ASTM A320, ASTM A193
Treatment
quenched and tempered, FK 8.8, peeled
Mechanical Specifications
>= 800 N/mm²
Shape
Round
10,68 mm - 64 mm
Chemical Analysis
| C: | 0,38 - 0,45 % |
| Cr: | 0,9 - 1,2 % |
| Mn: | 0,6 - 0,99 % |
| Mo: | 0,15 - 0,3 % |
| P: | max. 0,025 % |
| S: | 0,02 - 0,035 % |
| Si: | max. 0,4 % |
Application
The material 1.7725 is a Cr-Mo quenched and tempered steel. The 1.7225 combines good strength with high toughness and is suitable for fasteners, machine parts, bolts. In EN 10269 it can also be used as heat resistant steel.