Steel 48ХН3М

Designation

Name The value
Designation GOST Cyrillic 48ХН3М
Designation GOST Latin 48XH3M
Transliteration 48HN3M
By chemical elements 48CrН3Mo

Description

48ХН3М steel is used: for the production of square hot rolled long products used to manufacture critical components with high mechanical properties.

Standards

Name Code Standards
Bars and shapes В32 TU 14-1-4269-87, TU 14-1-4526-88

Physical characteristics

Temperature Е, HPa G, HPa r, kg/m3 l, W/(m · °C) a, 10-6 1/°C
20 208 79 7830 - -
100 204 79 7810 36 108

A description of the physical symbols

Name Description
Е The normal elasticity modulus
G Modulus of elasticity shear torsion
r Density
l Coefficient of thermal conductivity
a The coefficient of linear expansion

Technological properties

Name The value
Weldability Limited weldability. Method of welding: SMAW, ESW. Necessary preheating and subsequent heat treatment.
The temperature of forging Start - 1230 °C, the end - 780 °C. the cross Sections up to 100 mm are cooled in air, 101-350 mm - in the pit.
Flock-sensitive sensitivity Excessively sensitive.
Machinability In the annealed condition at 200-220 HB blower SB=640 MPa Kn TV.SPL.=0,8.