gb t 3077 45crni quenching and tempering steel For 20 years,focus on Alloy steel plate,Pipeline Steel Plate,Carbon and Low-alloy High-strength Steel,Boiler and Pressure Vessel Steel Plate,Weather Resistant Steel Plate,Shipbuilding and Offshore platform Steel plate of produce and stock.Boiler Steel Plates Equivalent Grade results for this questionWhat is the hardness of GB 20CR steel?What is the hardness of GB 20CR steel?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.20Cr Alloy Structure Steel - Special steel china supplier results for this questionWhy do you need secondary quenching when carburizing steel?Why do you need secondary quenching when carburizing steel?When carburizing,the grain of steel has a tendency to grow,so secondary quenching is required to improve the toughness of the core,and it is not suitable for cooling and quenching.Grade 20Cr Steel Composition,Properties,Material Equivalent
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.20CrMoTi 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 26,2019·20CrMnTi 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).
Low temperature tempering 150-200 Cool in ari,get 61-66HRC hardness.Hot work and cold work of 20CrMnTi Alloy Gearing steel; GB 20CrMnTi steel can hot worked at 205 to 538°C,20CrMnTi Bearing/Gearing steel can be cold worked using conventional techniques in the annealed or normalized conditions.Mechanical Properties38CrMoAl Alloy Structure Steel (Nitride Steel)- BBNSTEEL 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 [BBNSTEEL STAINLESS]good heat resistance and corrosion. STANDARD GB/T 3077 SAE 6470 JIS G4053 DIN EN 10085 GRADE 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
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.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 strength5140 Steel - Din 1.7035 - JIS SCr440 - Songshun SteelThe ways of heat treatment for 1.7035 steel are normalizing,annealing,quenching,tempering and etc.Quenching it at the temperature of 850 and oil cooling.Tempering at the temperature of 520,then water-cooling and oil cooling.After quenching,the surface hardness of it is 52-60HRC.Nitrogen Treatment.5140 steel can nitriding,and
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 Datasheet for Steel Grades Specialsteel 27SiMn1 GB/T 11251 (2009) Hot-rolled alloy structural steel plates 2 GB/T 17396 (2009) Hot-rolled seamless steel tubes for hydraulic pillar service 3 GB/T 3077 (1999) Alloy structure steels 4 GB/T 3078 (2008) Quality structural steel cold drawn bars 5 GB/T 8162 (2008) Seamless steel tubes for structural purposesFile Size 125KBPage Count 20GB/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,GBT3077
This 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 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,GBT3077GB/T 34882-2017,PDF in English - Chinese Standard GB/T GB/T 34882-2017 English 150 Add to Cart 0--10 minutes.Auto immediate delivery.Induction hardening and tempering of iron and steel parts GB/T 34882-2017 Valid GB/T 34882-2017 GB/T 34882-2017 Chinese 18 Add to Cart =1-day [PDF from Chinese Authority,or Standard Committee,or Publishing House]
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.Grade 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.National Standard of PRC Alloy Structure Steels GB/TThe standard will replace GB/T 3077-1988 from the date of the implementation of this standard. GB/T 225-1988 Methods of Harden ability Test for Steel End Quench Method GB/T 226-1991 Etch test for macrostructure and defect of steels MnVB 21 A73202 20MnVB 0.17~0.23 0.17~0.37 1.20~1.60 0.0005~0.0035 0.07~0.12