JB 50Cr JB/T 8491.1 Introduction

We are JB 50Cr JB/T 8491.1 supplier and exporter, JB 50CrVA JB/T 8491.1 producer and stock keeper. For the commonly used size JB 50CrVA JB/T 8491.1, we usually have stock resources and arrange delivery within 10 days. JB 50CrVA JB/T 8491.1 is fist product of our company. Our JB 50Cr JB/T 8491.1 not only enjoys first class quality on the market, but also competitive with reasonable price and thoughtful after service. During the past years, we have exported JB 50Cr JB/T 8491.1 to more than 70 countries and areas.

Application: Technical requirements for heat treatment of machine tool parts - Part 1: Annealing, normalizing, tempering.

Heat treated: 1625°C - 1589°C.

JB 50Cr JB/T 8491.1 Mechanical

The yield refers to the transition of JB 50CrVA JB/T 8491.1 from non-uniform elastic state to elastic-plastic state after reaching a certain deformation stress. It marks the beginning of macro-plastic deformation.
Tensile strength (Rm) refers to the maximum stress that JB 50CrVA JB/T 8491.1 bears before breaking. When the steel yields to a certain extent, its resistance to deformation increases again due to the rearrangement of internal grains. At this time, although the deformation develops rapidly, it can only increase with the increase of stress until the maximum stress is reached. Thereafter, the JB 50CrVA JB/T 8491.1 is ability to resist deformation is obviously reduced, and a large plastic deformation occurs at the weakest point, where the section of the specimen shrinks rapidly, leading to necking until fracture. The maximum stress value of JB 50CrVA JB/T 8491.1 before tensile fracture is called strength limit or tensile strength.