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Product information

Forming ratio

Dia 35-230 mm, > 5:1

Dia 235-250 mm, > 4:1

Dia over 260 mm, > 3,8:1

Delivery condition

FP annealed, hardness HB 159-207

TH annealed, hardness HB 179-229

Material certificates

EN 10204/3.1 vastaanottotodistus

Material standard

EN ISO 683-3

UT inspection

EN 10308:2002 Class 4, 3, 2

Sizes and size tolerances

EN 10204/3.1 certificate

Straightness

EN 10060

Description

Hot rolled round bar EN ISO 683-3 18CrNiMo7-6+HH EN 10060

Grain size

6 or smaller, EN ISO 634, DIN 50601

Size range

52 – 260 mm

Hardenability

HH EN ISO 683-3

Inclusion content

DIN 50602, K4

ISO 4967, method A

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