gb t 3077 20crni quenching and tempering steel

20Cr Alloy Structure Steel – China Steel Grade Standard GB

20Cr Alloy Structure Steel – China Steel Grade Standard GB

GB 20Cr alloy Steel is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality low carbon,Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc.sp.info GB/T 3077-2015 English Version, GB/T 3077-2015 Alloy GB/T 3077-2015 English Version - GB/T 3077-2015 Alloy structure steels (English Version):GB/T 3077-2015, GB 3077-2015, GBT 3077-2015, GB/T3077-2015, GB/T 3077, GB/T3077, GB3077-2015, GB 3077, GB3077, GBT3077-2015, GBT 3077, GBT3077sp.info GB/T3077 12Cr1MoV alloy structure steel forged bar - Bebon International is a professional GB/T3077 12Cr1MoV alloy structure steel forged bar steel exporter and a steel Stockist in china. We keep more than 1000 tons GB/T3077 12Cr1MoV alloy structure steel forged bar steel in stock every month.sp.info 40Cr Steel Equivalent, Mechanical Properties & Chemical 40Cr Alloy Steel. 40Cr steel is a kind of Chinese GB standard alloy steel for engineering and machinery purpose, and one of the most widely used steel grades.For 40Cr material hardness, specifications and equivalent, please see the table below. After quenching and tempering treatment, 40Cr steel has good comprehensive mechanical properties, low temperature impact toughness, low notch


			A brief inroduction of 40Cr alloy structual steel SHEW-E

A brief inroduction of 40Cr alloy structual steel SHEW-E

Jan 07, 2019 · Except quenching and tempering, 40Cr is also suitable for nitriding and high-frequency quenching. The hardenability of 40Cr steel is good, which can be reached to 28 ~ 60mm in water quenching and 15 ~ 40mm in oil quenching. When 174 ~ 229HBS, the relative machinability is 60%. Mechnical Property(GB/T 3077-1999):Sample Size (mm) sp.info 4140 Alloy Steel 1.7225 SCM440 42CrMo4 - OTAI The hardness of the steel can be increased if it has lower tempering temperature. For example, tensile strength of 225 ksi cab be achieved by tempering at 316°C (600°F), and a tensile strength of 130 ksi can be achieved by tempering at 538°C (1000°F). Hardening AISI 4140 alloy steel can be hardened by cold working, or heating and quenching.sp.info 20Cr Steel - Metal Product ManufacturerDec 17, 2014 · In order to improve the wear resistance of the mold cavity, after molding the need for carburizing and then quenching and tempering, thus ensuring the mold surface with high hardness, high wear resistance and heart Ministry has good toughness. standard GB / T 3077-1990 steel (mass fraction King,%) 0.18 ~ 0.24, Si0.17 ~ 0.37, Mn0.50 ~ 0.80 sp.info GB/T 30CrMnSiA Alloy Round Steel Bars / Bright Hot Rolled INTRODUCTION . Alloy structural steel is a kind of steel which is used as mechanical parts and various engineering components, whichcontains one or more alloy elements.. 30CrMnSiA is a medium carbon with high strength and poor welding performance. 30CrMnSiA has high strength and sufficient toughness after quenching and tempering, and hardenability is also good.


			40Cr Steel CNC Machining Parts CNC Mechanical Steel

40Cr Steel CNC Machining Parts CNC Mechanical Steel

CNC Machining 40Cr Steel Parts. 40Cr Steel Is The Standard Steel Grade Of GB In Our Country, And 40Cr Steel Is One Of The Most Widely Used Steels In Machinery Manufacturing Industry. After Quenching And Tempering, It Has Good Comprehensive Mechanical Properties, Good Low Temperature Impact Toughness And Low Notch Sensitivity.sp.info Gb3077 - SlideShareJun 18, 2015 · Gb3077 1. Foreword The standard has revised GB/T 3077-1988 ”The Technical Conditions of Alloy Structure Steel”. There have been some changes in this national’s standard over its previous edition in the following technical aspects:- Change the name of the standard to “Alloy Structure Steel”; - After consultation between the two sides of supply and demand, the bar stock of which the sp.info News - BEBON STEELGB/T 3077 20Cr alloy steel plate has good comprehensive mechanical properties after quenching and tempering at low temperature, with good impact toughness at low temperature and no obvious tempering brittleness. During carburizing, the grain size of GB/T.sp.info 42CrMo4 steel and 42CrMo steel difference WixSteelNormal quality steel:P< 0.035 S< 0.035 High quality steel:P< 0.025 S< 0.025 Extra high quality steel:P< 0.025 S< 0.015. It can also be seen from the above table that the contents of Si, Mn and Mo are different. The GB/T 3077 of P and S content is classified into three grades.


			GB/T 11251 30CrMnSiA alloy steel plates - BEBON steel

GB/T 11251 30CrMnSiA alloy steel plates - BEBON steel

GB/T 11251 30CrMnSiA alloy steel plates are medium carbon tempered steel with high strength and poor welding performance. After quenching and tempering, 30CrMnSiA alloy steel plates have high strength and toughness and good hardenability. GB/T 11251 30CrMnSiA alloy steel sp.info 38CrMoAl Alloy Structure Steel (Nitride Steel)- TJC Jan 19, 2021 · 38CrMoAl is an alloy structural steel characterized by high aluminum composition, which is generally used after quenching and nitriding.After nitriding, 38CrMoAl has high surface hardness, wear resistance and fatigue strength, and has [TJC STAINLESS]good heat resistance and corrosion. STANDARD GB/T 3077 SAE 6470 JIS G4053 DIN EN 10085 GRADE sp.info GB/T 16924-2008 English Version, GB/T 16924-2008 GB/T 16924-2008 English Version - GB/T 16924-2008 Quenching and tempering of steel parts (English Version):GB/T 16924-2008, GB 16924-2008, GBT 16924-2008, GB/T16924-2008, GB/T 16924, GB/T16924, GB16924-2008, GB 16924, GB16924, GBT16924-2008, GBT 16924, GBT16924sp.info EN24 and EN24T Steel - Quality Products & Best PricesHardening:830 to 860 °C (1525-1580 °F), oil quench, Tempering temperature:550 to 660 °C (1020-1220 °F) En24 Steel Equivalent Grade. BS970 817M40 material or En24T, En24 steel equivalent to European EN (German DIN EN, French NF EN), ISO, Japanese JIS and Chinese GB


			News - BBN Ship Steel

News - BBN Ship Steel

GB 20Cr Alloy Steel Equivalent. GB 20Cr Alloy Steel Equivalent GB 20Cr alloy steel equivalent specification:ASTM A29/A29M, DIN EN 10083/3, JIS G4053 and GB/T 3077. GB 20Cr equivalent steel round bar and flat bars can be cut to your required sizes. China steel 20Cr hot rolled and f. Read More+sp.info China 12Cr1MoV High Quality Alloy Structural Steel Plate 12CrMoV, Cr:0.30 ~ 0.60. Uniform number code:A31122. Executive standard:GB/T 3077-1999. All of them are pearlite type heat-resistant steel, which has high tissue stability and thermal strength when used in high temperature for a long time. Compared with 12Cr1MoV steel, Cr content is higher, with higher oxidation resistance and thermal sp.info Products / Low Alloy High Strength Steel / EN 10083-2 EN 10083 -2 Steels for quenching and tempering. Technical delivery conditions for non alloy steels 28Mn6,C22E,C22R,C35,C35E,C35R,C40,C40E,C40R,C45,C45sp.info Perform Indicator for Steel Grade 42CrMo, Chemical and 42CrMo steel is a ultra high strength steel which has high toughness, hardenability and bo abvious temper brittleness, low deformation rate after being quenched. Heat-treatment or QT(quenching and tempering) will bring high fragile resistance properties and impact resistance properties. This photo is our ready stock after heat-treaing process.

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