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, medium cold bending and plasticity, high hardenability, good weldability, and is generally used in the adjusted state.
A30422 GB ::Total MateriaA30422, GB, GB/T 3077, Alloy structure steels, GB/T 8162, Seamless steel tubes for structural purposes, GB/T 3078, Quality structural steel cold drawn bars, GB/T 17107, Structural steel grades and mechanical property for forgings, GB/T 24595, Steel
Compared with old standards of alloy structural steel GB/T 3077-1988GB/T 3077-1999, some important changes of the GB/T 3077-2015 new standard was discussed. The changes mainly include the
Analysis of GB/T 3077-2015 "Alloy structure steels" standardCompared with old standards of alloy structural steel GB/T 3077-1988GB/T 3077-1999, some important changes of the GB/T 3077-2015 new standard was discussed. The changes mainly include the
China Steel Grade Standard GB/T 3077 20Cr Alloy Structure China Steel Grade Standard GB/T 3077 20Cr Alloy Structure Steelis 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.
GB 20CrMnTi GB/T 3077 In addition to carbon, steel also contains a small amount of manganese (Mn), silicon (Si), sulfur (S), phosphorus (P), oxygen (O), nitrogen (N) and hydrogen (H). These elements are not intentionally added to improve the quality of steel, but are brought in by ore and smelting process, so they are called impurity elements.
GB Standard List:Irons, Structural and Constructional GB/T 11251:2009:Hot-rolled alloy structural steel plates /26/ GB/T 1591:2008:High strength low alloy structural steels /37/ GB/T 16270:2009:High-strength structural steel plates and strips:products supplied in the heat-treated or controlled rolled condition /14/ GB/T 17107:2004:Structural steel grades and mechanical property for
GB T-3077 30MN2 Round bar, 30MN2 Bearing steel, 30MN2 6. GB T-3077 30MN2 Round bar . Allowable deviation for the chemical composition . 7. GB T-3077 30MN2 Round bar . Hardness of annealed steel . 8. GB T-3077 30MN2 Round bar . Surface Quality . The steel should be processed well, with no cracks, folding, tearing, scarring, inclusions, or other harmful defects on the surface.
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
GB/T 3077-2015:Translated English of Chinese Standard Aug 26, 2016 · GB/T 3077-2015:Translated English of Chinese Standard. (GBT 3077-2015 Sample blank sizea/m m Second quenching Coolant spectrophotometric method GB/T Standard Standards designation steel and alloy steel bars GB/T Steel group structure steel sulfur Table 1 continued temperature/oC First quenching Tensile strength Rm/MPa test method
Gb3077 - slideshare.netJun 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 nationals 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