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Diversity and innovation hot spots of seamless steel pipe materials
With the continuous development of industrial technology, seamless steel pipes, as important pipeline materials, are widely used in various fields. As part of Jindalai Steel Group Co., Ltd., they have very high requirements for technological innovation and performance of...Read more -
Several common heat treatment concepts
1. Normalizing: A heat treatment process in which steel or steel parts are heated to an appropriate temperature above the critical point AC3 or ACM, maintained for a certain period of time, and then cooled in the air to obtain a pearlite-like structure. 2. Annealing: A heat treatment process i...Read more -
Do you know what annealing, quenching and tempering are?
When it comes to heat-resistant steel castings, we have to mention the heat treatment industry; when it comes to heat treatment, we have to talk about the three industrial fires, annealing, quenching, and tempering. So what are the differences between the three? (One). Types of annealing 1. Comp...Read more -
China silicon steel grades VS Japan silicon steel grades
1. Chinese silicon steel grades representation method: (1) Cold-rolled non-oriented silicon steel strip (sheet) Representation method: 100 times of DW + iron loss value (the iron loss value per unit weight at a frequency of 50HZ and a sinusoidal magnetic induction peak value of 1.5T.) + 100 tim...Read more -
Summary of ten commonly used quenching methods
There are ten commonly used quenching methods in the heat treatment process, including single medium (water, oil, air) quenching; dual medium quenching; martensite graded quenching; martensite graded quenching method below the Ms point; bainite isothermal Quenching method; compound quenching meth...Read more -
Ferrous metal materials hardness value conversion table
布氏硬度 HB 洛氏硬度 维氏 硬度 HV 布氏硬度 HB 洛氏硬度 维氏硬度 HV HRA HRC HRA HRC 86.6 70.0 1037 78.5 55.0 599 86.3 69.5 1017 78.2 54.5 589 86.1 69.0 997 77.9 54.0 579 85.8 68.5 978 77.7 53.5 570 85.5 68.0 959 77.4 53.0 561 85.2 67.5 941 77.1 52.5 551 ...Read more -
Basic mechanical properties of metal materials
The properties of metal materials are generally divided into two categories: process performance and usage performance. The so-called process performance refers to the performance of metal materials under specified cold and hot processing conditions during the manufacturing process of mechanical ...Read more -
Commonly Used JIS standard Steel Grades for Building Structures
Introduction: Jindalai Steel Group is a leading supplier of steel plates for various applications. With a wide range of products including Hot Rolled Steel Plate, Cold Rolled Steel Plate, Hot Rolled Patterned Steel Plate, and Tinplate, we have established long-term partnerships with renowned ste...Read more -
Common surface finish of stainless steel
Original surface: NO.1 The surface subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., with thicker thickness ranging from 2.0MM-8.0MM. Blunt surface: NO.2D After cold rolling, heat...Read more -
Precautions for stainless steel processing and construction
Cutting and punching Since stainless steel is stronger than ordinary materials, higher pressure is required during stamping and shearing. Only when the gap between the knives and knives is accurate can shear failure and work hardening not occur. It is best to use plasma or laser cutting. When ga...Read more -
Three hardness standards for steel
The ability of a metal material to resist the indentation of the surface by hard objects is called hardness. According to different test methods and application scope, hardness can be divided into Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, microhardness and high temper...Read more -
Introduction to cold work die steel
Cold work die steel is mainly used for stamping, blanking, forming, bending, cold extrusion, cold drawing, powder metallurgy dies, etc. It requires high hardness, high wear resistance and sufficient toughness. Generally divided into two categories: general type and special type. For example, the ...Read more