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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 Class 4,

Exception center 20% from diameter, Class 3

Description

Forged round bar EN ISO 683-3 18CrNiMo7-6+HH High Grade

Grain size

6 or smaller, EN ISO 634, DIN 50601

Size range

230 – 1050 mm

Inclusion content

DIN 50602 method Ko3, Kѕ3, K4
ISO 4967, method A

Forming ratio

> 3:1

Chemical Structure

Steel gradeC %Si*%Mn %P %S %Cr %Ni %Mo %Cu %Al %N %Ca %O %H %
18CrNiMo7-60.15-0.20≤ 0.350.50-0.90≤0.015≤0.0351.60-1.801.50-1.700.25-0.35≤ 0.250.015-0.0400.006-0.015≤ 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.

Mechanical Features