GB/T 224—2008 steel decarburization layer depth measurement method
GB/T 225—2006 End quenching test method for steel hardenability (Jominy test)
GB/T 226—2015 steel low-fold structure and defect acid etching test
GB/T 227—1991 Tool steel hardenability test method
GB/T 1954—2008 chrome-nickel austenitic stainless steel weld ferrite content measurement method
GB/T 1979-2001 structural steel low-fold tissue defect rating map
GB/T 1814—1979 Steel Fracture Inspection Method
GB/T 2971—1982 carbon steel and low alloy steel fracture test method
GB/T 3246.1—2012 Methods for the inspection of microstructures of deformed aluminium and aluminium alloys - Part 1
GB/T 3246.2—2012 Methods for the inspection of microstructures of deformed aluminium and aluminium alloys - Part 2
GB/T 3488—1983 Metallographic determination of microstructure of cemented carbide
GB/T 3489-1983 Metallographic determination of porosity and non-combined carbon of cemented carbide
GB/T 4236-1984 steel sulfur printing inspection method
GB/T 4296-2004 wrought magnesium alloy microstructure inspection method
GB/T 4297-2004 anamorphic magnesium alloy low-power structure inspection method
GB/T 4334—2008 Corrosion of metals and alloys
GBT 4335—2013 Determination of ferrite grain size of low carbon steel cold rolled sheet
GB/T 4334.6—2015 stainless steel 5% sulfuric acid corrosion test method
GB/T 4462-1984 high speed tool steel bulk carbide rating chart
GB/T 5058-1985 Determination method of isothermal transformation curve of steel (magnetic method)
GB/T 5168—2008 α-β titanium alloy high and low microstructure inspection method
GB/T 5617-2005 Determination of the effective hardened layer depth after induction hardening or flame quenching of steel
Quantitative analysis of carbide phase in high speed steel GB/T 8359-1987 X-ray diffractometry
GB/T 8362—1987 quantitative determination of retained austenite in steel X-ray diffractometry
GB/T 9450—2005 Determination and check of the depth of carburizing and hardening layer of steel
GB/T 9451—2005 Determination of the depth of the total hardened layer or the depth of the effective hardened layer on the thin surface of steel
GB/T 10561-2005 Determination of non-metallic inclusions in steel - Standard s
GB/T 10851—1989 casting aluminum alloy pinhole
GB/T 10852—1989 casting aluminum-copper alloy grain size
GB/T 11354—2005 Depth measurement of nitriding layer of steel parts and metallographic examination
GB/T 13298-2015 metal microstructure inspection method
GB/T 13299-1991 steel microstructure inspection method
GB/T 13302—1991 Method for microscopic evaluation of graphite carbon in steel
GB/T 13305—2008 Metallographic method for determination of α-phase area content in stainless steel
GB/T 13320—2007 Steel die forgings Metallographic organization rating chart and evaluation method
GB/T 13825—2008 Metallic coatings Hot-dip galvanizing unit area weighing method for ferrous materials
GB/T 13912—2002 Metallic coatings Technical requirements and test methods for hot dip coating of steel parts
GB/T 14979-1994 Steel eutectic carbide non-uniformity evaluation method
GB/T 15711-1995 steel tower shape hairline acid leaching test method
GB/T 30823—2014 Test method for nickel alloy probes for determining the cooling performance of industrial quenching oil
GB/T 14999.1—2012 Test methods for superalloys - Part 1
GB/T 14999.2-2012 test methods for high-temperature alloys - Part 2
GB/T 14999.3-2012 test methods for high-temperature alloys - Part 3
Test methods for high temperature alloys - Part 4: Determination of grain structure and primary carbide distribution of rolled high-temperature alloy strips
YB/T 4002—2013 continuous casting steel billet low-fold tissue defect rating map
