Wednesday, January 29, 2020

Chinese GB Standard

GB is short for the first letter of the Pinyin “国标 Guo Biao”, which means “Chinese national standard” in English, and is issued by the Standardization Administration of the People’s Republic of China.

Mandatory standards are prefixed with “GB”; The recommended standard is prefixed with “GB/T”, T is short for the first letter of Pinyin “推荐 Tui Jian”, which means “recommended” in English.

102Cr17Mo 9Cr18Mo Stainless Steel

9Cr18Mo Stainless Steel Equivalent, Chemical Composition, Mechanical Properties

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9Cr18Mo Stainless Steel 9Cr18Mo steel is a Chinese GB standard martensitic stainless steel, after quenching, it has high hardness and wear resistance high temperature and low temperature dimensional stability. 9Cr18Mo stainless steel has similar properties and uses as...
25CrMo Steel Chemical Composition, Mechanical Properties, Equivalent

25CrMo Steel Chemical Composition, Mechanical Properties, Equivalent

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25CrMo Steel 25CrMo steel is a kind of Chinese alloy steel for engineering and mechanical structure use, for properies and uses, please refer to 20CrMo and 30CrMo. For specification, chemical composition, mechanical properties and equivalent, please see the...

20CrMo Steel Equivalent, Chemical Composition, Mechanical Properties

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20CrMo Alloy Steel GB 20CrMo steel is a kind of Chinese alloy steel for engineering and mechanical structure purpose, which is generally used in quenching or tempering or carburizing and quenching. 20CrMo material has high heat strength, good...
30CrMo Steel Equivalent, Chemical Composition, Mechanical Properties

30CrMo Steel Equivalent, Chemical Composition, Mechanical Properties

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30CrMo Steel 30CrMo steel is a Chinese alloy steel for engineering and machine structural use, has high strength and high toughness, and has good high temperature strength at temperatures below 500 °C. 30CrMo material also has good machinability,...
35CrMo Steel Chemical Composition, Mechanical Properties, Equivalent

35CrMo Steel Chemical Composition, Mechanical Properties, Equivalent

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35CrMo Steel 35CrMo steel is a Chinese alloy steel for engineering purpose, it has high durability and creep strength at high temperature, and low temperature impact toughness is good. The working temperature is up to 500 °C, the...
95Cr18 9Cr18 Stainless Steel Bar

95Cr18, 9Cr18 Stainless Steel Equivalent, Composition, Properties

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95Cr18 (9Cr18 Steel) Chinese GB 95Cr18 (9Cr18 steel) is a high-carbon high chromium martensitic stainless steel, which has improved corrosion resistance compared to Cr17 steel, and other properties are similar to those of Cr17. 95Cr18 is the new name...
40CrNiMo 40CrNiMoA Steel Equivalent Chemical Composition Properties

40CrNiMo, 40CrNiMoA Steel Equivalent, Composition, Properties

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40CrNiMoA Steel 40CrNiMoA steel is a Chinese alloy steel, has high strength, toughness and good hardenability, and has anti-overheating stability, but has high white point sensitivity, temper brittleness and poor weldability. Preheating is required before welding, and stress...
68Cr17 7Cr17 stainless steel kitchen knife

7Cr17 Steel (68Cr17) High Carbon Stainless Steel

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68Cr17 (7Cr17 Steel) 68Cr17 (7Cr17 steel) is a Chinese high barbon chromium martensitic stainless steel with a higher quenching hardness than 2Cr13 steel. 7Cr17 stainless steel has high strength and hardness under quenching and tempering conditions, and has...
42crmo vs 4140 vs 42CrMo4 en 1.7225 Steel

42CrMo vs 4140 vs 42CrMo4 (EN 1.7225) Steel

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The following tables show 42CrMo vs 4140 vs 42CrMo4 (1.7225) steel, they are similar in chemical composition and mechanical properties and are all belong to alloy steels. Chemical Composition % Country Standard Steel Grade (Material Number) C Si Mn P S Cr Mo China GB/T 3077 42CrMo 0.38 to 0.45 0.17 to 0.37 0.50...
42CrMo steel crankshaft

42CrMo Steel Equivalent, Chemical Composition, Mechanical Properties

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Introduction 42CrMo steel is a Chinese alloy steel, and has high strength and toughness, good hardenability, and no obvious temper brittleness. After quenching and tempering treatment, it has high fatigue limit and resistance to multiple impacts, and good...