GB/T 18177-2008 Gas nitriding of steel parts

GB/T 18177-2000 Gas nitriding of steel parts

GB/T 536-1988 Liquefied anhydrous ammonia GB/T 11354-2005 Determination of nitrided case depth and metallographic microstructure examination for steel and iron parts GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 1182-1996 Geometrical tolerancing—Generalities, definitions, symbols, indications on drawings GB/T 1182-2008 Geometrical Product Specifications(GPS)—Geometrical tolerancing—Tolerances of form, orientation, location and run-out GB/T 1182-2018 Geometrical product specifications(GPS)—Geometrical tolerancing—Tolerances of form,orientation,location and run-out GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 1221-1992 Heat-resisting steel bars GB/T 1221-2007 Heat-resistant steel bars GB/T 1299-2000 Alloy tool steels GB/T 1299-2014 Tool and mould steels GB/T 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 7232-1999 Terminology of metal heat treatment GB/T 7232-2012 Terminology of metal heat treatment GB/T 7232-2023 Metal heat treatment—Terminology GB/T 9452-2003 Testing method for work zone of Heat treatment furnace GB/T 9452-2012 Testing method for working zone of heat treatment furnace GB/T 9452-2023 Test method for qualified work zone of heat treatment furnace GB/T 9943-1988 High speed tool steel bars—Technical requirements GB/T 9943-2008 High-speed tool steels GB/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 12603-1990 Classification and designation on metal heat treatment GB/T 12603-2005 Classifications and designations for metal heat treatment GB 15735-1995 Requirements for the safety and health in production process of metal heat treatment GB 15735-2004 Requirements for the safety and health in production process of metal heat treatment GB 15735-2012 Requirements for the safety and health in production process of metal heat treatment GB/T 15822.2-2005 Non-destructive testing—Magnetic particle testing—Part 2:Detection media GB/T 15822.2-2024 Non-destructive testing—Magnetic particle testing—Part 2:Detection media GB/T 17358-1998 Power consumption quota and its counting and testing method in heat treating production GB/T 17358-2009 Power consumption,measurement,and testing in heat treating production GB/T 19944-2005 Fuel consumption quota and its counting and testing method for heat treating production GB/T 19944-2015 Fuel consumption calculation and measurement method in heat treating production JB/T 6050-2006 "JB/T 6050-2006 General Test Procedures for Hardness Testing of Heat-Treated Parts in Steel" JB/T 9199-2008 JBT 9199-2008 Anti-seepage coating technical specification JB/T 9218-2015 Non-destructive testing (NDT) - Penetrant testing method JB/T 6050-1992 General principles for hardness testing of heat-treated steel parts JB/T 9199-1999 Sealing coating technical specifications JB/T 9218-1999 Pore penetrating inspection method JB/T 9218-1999 JB/T 9218-2007 Non-destructive testing, including penetrant testing JB/T 10175-2000 Heat treatment quality control requirements JB/T 10175-2008 Quality control requirement for heat treatment GB/T 1299-2025 Tool and mould steels GB/T 9943-2025 High-speed tool steels