GB/T 40883-2021 Microalloyed steel forgings—General specification

GB/T 223.78-2000 Methods for chemical analysis of iron,steel and alloy—Curcumin spectrophotometric method for the determination of boron content GB/T 223.79-2007 Iron and steel—Determination of multi-element contents—X-ray fluorescence spectrometry(Routine method) GB/T 223.80-2007 Iron,steel and alloy—Determination of trace bismuth and arsenic contents—Hydride generation-atomic fluorescence spectrometric method GB/T 223.81-2007 Iron,steel and alloy—Determination of total aluminum and total boron contents—Microwave digestion-inductively coupled plasma mass spectrometric method GB/T 223.82-2007 Steel and iron—Determination of hydrogen content—Inert gas impulse fusion heat conductivity method GB/T 223.82-2018 Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas GB/T 223.83-2009 Steel and iron—Determination of high sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.86-2009 Steel and iron—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace GB/T 223.87-2018 Iron, steel and alloy—Determination of calcium and magnesium—Inductively coupled plasma mass spectrometric method GB/T 223.88-2019 Iron,steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method GB/T 223.89-2019 Iron,steel and alloy—Determination of tellurium content—Hydride generation-atomic fluorescence spectrometric method GB/T 223.90-2021 Iron,steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method GB/T 223.91-2021 Iron,steel and alloy—Determination of copper—2,2′-Biquinoline spectrophotometric method GB/T 223.92-2023 Iron, steel and alloy—Determination of lanthanum, cerium, praseodymium, neodymium and samarium content—Inductively coupled plasma mass spectrometry GB/T 224-1987 Determination of depth of decarburization of steel GB/T 224-2008 Determination of depth of decarburization of steels GB/T 224-2019 Determination of the depth of decarburization of steels GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 229-1994 Metallic materials—Charpy notch impact test GB/T 229-2007 Metallic materials—Charpy pendulum impact test method GB/T 229-2020 Metallic materials—Charpy pendulum impact test method GB/T 231.1-2002 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2018 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 2975-1998 Steel and steel products—Location and preparation of test pieces for mechanical testing GB/T 2975-2018 Steel and steel products—Location and preparation of samples and test pieces for mechanical testing GB/T 6394-2002 Metal-methods for estimating the average grain size GB/T 6394-2017 Determination of estimating the average grain size of metal GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 8541-1997 Terminology of forging and stamping GB/T 8541-2012 Terminology of forging and stamping GB/T 10561-1989 Steel—Determination of content of non-metallic inclusion—Micrographic method using standard diagrams GB/T 10561-2005 Steel—Determination of content of nonmetallic inclusions—Micrographic method using standards diagrams GB/T 10561-2023 Determination of content of nonmetallic inclusions in steel—Micrographic method using standard diagrams GB/T 12361-2003 General specification of Steel die forgings GB/T 12361-2016 Steel die forgings—General specification GB/T 12362-2003 Tolerances and machining—Allowances of steel die forging GB/T 12362-2016 Steel die forgings—Tolerance and machining allowance GB 13318-2003 General rules for safety and environmental conservation of forging production GB/T 13320-1991 Metallographic grading atlas and assessing method for steel die forgings GB/T 13320-2007 Metellographic grading atlas and assessing method for steel die forgings GB/T 13320-2025 Metellographic grading atlas and assessing method for steel die forgings GB/T 15712-1995 Ferritic—Pearlitic engineering steels for precipitation hardening from hot—Working temperature GB/T 15712-2008 Microalloyed medium carbon steels GB/T 15712-2016 Microalloyed medium carbon steels GB/T 15822-1995 Methods for magnetic particle testing GB/T 15822.1-2005 Non-destructive testing—Magnetic particle testing—Part 1:General principles GB/T 15822.1-2024 Non-destructive testing—Magnetic particle testing—Part 1:General principles 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 15822.3-2005 Non-destructive testing—Magnetic particle testing—Part 3:Equipment GB/T 15822.3-2024 Non-destructive testing—Magnetic particle testing—Part 3:Equipment GB/T 20123-2006 Steel and iron—Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method) GB/T 20124-2006 Steel and iron—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas (Routine method) GB/T 20125-2006 Low-alloy steel—Determination of multi-element contents—Inductively coupled plasma atomic emission spectrometric method GB/T 21469-2008 Machining allowances and tolerances for steel open die forgings on hammer—General requirement JB/T 9179.1-2013 Machining allowances and tolerances for steel freeform parts on hydraulic presses - Part 1: General requirements JB/T 9179.1-1999 JB/T 9179.1-1999 Machining allowances and tolerances for free-forming parts of hydraulic presses - General requirements JB/T 9179.2-2013 Hydraulic press mechanical machining allowance and tolerance for steel free forging part 2: Round shaft, square shaft and rectangular cross-section types JB/T 9179.2-1999 The allowance and tolerance for mechanical processing of free forgings on a hydraulic press for round, square, and rectangular cross-section types JB/T 9179.3-2013 Hydraulic press machining allowance and tolerance for steel free forgings Part 3: Step shafts JB/T 9179.3-1999 JB/T 9179.3-1999 - Mechanical machining allowance and tolerance for stepped shafts of free forging on hydraulic press JB/T 9179.4-2013 Hydraulic press mechanical processing allowance and tolerance for steel free forgings Part 4: Discs and punch types JB/T 9179.4-1999 Mechanical Processing Allowances and Tolerances for Free Forged Parts on Hydraulic Presses Discs and Punching Parts JB/T 9179.5-2013 JB/T 9179.5-2013 Machining allowances and tolerances for steel free-forging parts of hydraulic press - Part 5: Short cylinder type JB/T 9179.5-1999 Mechanical Processing Allowances and Tolerances for Free Forged Parts on Hydraulic Presses - Short Cylindrical Parts JB/T 9179.6-2013 Hydraulic press for steel free-forging mechanical processing allowance and tolerance Part 6: Modular category. (Note: This is a placeholder translation and the actual translation may vary depending on the context.) JB/T 9179.6-1999 Mechanical Processing Allowances and Tolerances for Free Forged Parts on Hydraulic Presses Module Class JB/T 9179.7-2013 JB/T 9179.7-2013 Machining allowances and tolerances for steel free-forming parts of hydraulic presses - Part 7: Tubular type. (English translation only) JB/T 9179.7-1999 JB/T 9179.7-1999 - Mechanical machining allowance and tolerance for cylinder type free forging pieces on hydraulic press JB/T 9179.8-2013 Machining allowance and tolerance for steel free-formed parts on hydraulic press - Part 8: Circles, cylinders and flanges JB/T 9179.8-1999 JB/T 9179.8-1999 Machining allowances and tolerances for free-forging parts of hydraulic presses - Round ring type