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Heat-treatable steels
Quality 1.6580
Grade
30CND8
AISI/UNS + Alloy
AISI 4330/4340 (similar), UNS G43300/G43400
Material Specifications
EN 10083-3, EN 10277-5, ISO 898 FK 10.9, ISO 683-3
Treatment
quenched and tempered, rolled
Mechanical Specifications
800 - 1450 N/mm²
Shape
Round
30 mm - 110 mm
Chemical Analysis
| C: | 0,26 - 0,34 % |
| Cr: | 1,8 - 2,2 % |
| Mn: | 0,3 - 0,6 % |
| Mo: | 0,3 - 0,5 % |
| Ni: | 1,8 - 2,2 % |
| P max. 0,025 % | |
| S: | max. 0,035 % |
| Si: | max. 0,4 % |
Application
The material 1.6580 is a tempering steel with good toughness properties at low temperatures. The 1.6580 is standardized EN 10083-3 and ISO 683-3. It is used in screws, connecting parts, bolts, turned parts. In quenched and tempered version it is used for machining by turning.