gb t 3077 42simn quenching and tempering steel
Hardening of GB Alloy structural steel 20Cr; First quenching heated slowly to 880°C,Then after adequate soaking at this temperature quench in oil or water.Temper as soon as tools reach room temperature.Second quenching heat to 780-820°C then quenching in oil or water.Tempering of 20Cr Alloy structural steel20CrMoTi Gear Steel Bar,GB3077 round bar - World Iron 20CrMnTi gear steel is a commonly in accordance with the standards of the former Soviet union in China according to GB/T 3077,GB/T 5216-2014 and GB/T 33160-2016 (gears for wind power generation).20CrMoTi steel is a type of low-carbon alloy steel which widely used in gear with good strength and toughness and higher hardenability,in order to meet the requirements of wear resistance,corrosion 20CrMoTi Nitriding gear steel Shew-e steelSep 26,2019·Ordinary tempered structural steel like 42CrMo4,35CrMoV,25Cr2MoV and other materials can also be used to make nitriding gear.20CrMnTi gear steel is a commonly in accordance with the standards of the former Soviet union in China according to GB/T 3077,GB/T 5216-2014 and GB/T 33160-2016 (gears for wind power generation).
IntroductionApplicationsDatasheetEquivalent42CrMo steelis 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 low temperature impact toughness.See more on theworldmaterialGrade 20Cr Steel Composition,Properties,Material Equivalent20Cr Steel Grade.20Cr steel is a kind of Chinese GB standard alloy steel.It has good comprehensive mechanical properties after quenching and low temperature tempering good low temperature impact toughness and temper brittleness is not obvious.42CrMo4 DIN 1.7225 Steel Round Bar Plate Material 42Crmo4 Steel Round Bar CharacteristicsHeat TreatmentApplication42Crmo4 Steel Bar Sheet Plate Supply High strength and hardenabilityGreat toughness,the deformation is small in the quenchingIt has high creep resistance and long-time strengthIt has high creep resistance and long-time strength42CrMo4 steel and 42CrMo steel difference WixSteelThe GB/T 3077 of P and S content is classified into three grades.The standard value of EN10083 limits the maximum content.The P and S contents of medium and high quality steel in GB/T 3077 standard are similar to those in EN10083 standard.The content range of Si and Mo in GB/T 3077 standard is narrower than EN10083 standard.
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 PropertyGB/T 3077-1999 Sample Size mm File Size 125KBPage Count 20GB/T 3077-2015 English Version,GB/T 3077-2015 Alloy GB/T 3077-2015 English Version GB/T 16924-2008 PDF English.- Chinese StandardThis standard replaces GB/T 16924-1997 quenching and tempering of steel parts of the standard. Compared with GB/T 16924-1997,with the following modifications and additions.--- Certain technical content has been adjusted (see Chapter 1,Chapter 2,Section 3,5.1,5.3,Table 1,Table 3 to Table 11);
GB/T 3077-1999 English Version - GB/T 3077-1999 Alloy Structure Steels (English Version) GB/T 3077-1999,GB 3077-1999,GBT 3077-1999,GB/T3077-1999,GB/T 3077,GB/T3077,GB3077-1999,GB 3077,GB3077,GBT3077-1999,GBT 3077,GBT3077National Standard of PRC Alloy Structure Steels GB/TThe standard has revised GB/T 3077-1988 The Technical Conditions of Alloy Structure Steel. GB/T 224-1984 Determination of depth of decarburization of steel GB/T 225-1988 Methods of Harden ability Test for Steel End Quench Method 10 A10422 42SiMn 0.39~0.45 1.10~1.40 1.10~1.40gb t 3077 45crni quenching and tempering steel China Buy GB/T 3077 30CrMnSiA alloy steel katalor special steelGB/T 3077 30CrMnSiA alloy steel.20171215.Font Size +Back to list.30CrMnSiA is a medium carbon with high strength.30CrMnSiA has high strengthgood hardenability and sufficient toughness after quenching and tempering.Meanwhile,30CrMnSiA has good process ability,small processing deformation and good fatigue resistance and it