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Product information
Delivery condition
TH annealed, hardness HB 179-229
Material certificates
EN 10204/3.1 certificate
Material standard
EN ISO 683-3
UT inspection
EN 10228-3 Luokka 4,
Exception center 20% from diameter, Class 3
Description
Forged round bar EN ISO 683-3 18CrNiMo7-6+HH High Grade turned
Grain size
6 or smaller, EN ISO 634, DIN50601
Size range
230 – 1050 mm
Inclusion content
DIN 50602 method Ko3, Kѕ3, K4
ISO 4967, method A
Forming ratio
> 3:1
Chemical Structure
Steel grade | C % | Si*% | Mn % | P % | S % | Cr % | Ni % | Mo % | Cu % | Al % | N % | Ca % | O % | H % |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
18CrNiMo7-6 | 0.15-0.20 | ≤ 0.35 | 0.50-0.90 | ≤0.015 | ≤0.035 | 1.60-1.80 | 1.50-1.70 | 0.25-0.35 | ≤ 0.25 | 0.015-0.040 | 0.006-0.015 | ≤ 15ppm | ≤ 20ppm | ≤ 2ppm |
AI/N ratio: 2-3 | ||||||||||||||
*Steel grade can be delivered also with lower Silicon content. In these cases the deoxidation has to be confirmed by using other methods. |