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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, ISO 898 FK 10.9, ISO 683-3
Treatment
quenched and tempered, FK 10.9, peeled
Mechanical Specifications
>= 1040 N/mm"
Shape
Round
10 mm - 56 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 strength class 10.9 the tensile strength exceeds 1040Mpa/mm².