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GB /T 3101 - 1993 General principles concerning quantities,units and symbols


 有关量、单位和符号的一般原则

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Technical drawings - Dimensions, proportions and simplified representation for welding symbols

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Design of cylindrical helical springs

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General purpose metric screw threads - General plan (ISO 261: 1998, MOD)

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Limits and fits Tables of standard tolerance grades and limit deviations for holes and shafts

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Specification for cast copper alloys

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Wire electrodes, wires and rods for welding of aluminium and aluminium alloys

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Steel plate, sheet and strip for pressure equipments - Part 2: Non-alloy and alloy steel with specified temperature properties

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Plain bearing-Multilayer materials for thin-walled plain bearing

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High Strength abrasion resistant steel plates for construction machine

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Compacted (vermicular) graphite iron castings

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Low yield strength steel plate for construction

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Essential requirements for the safety of hydrogen systems

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Fasteners for nuclear power plants— Part1: Bolts, screws and studs made of alloy steel

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Fasteners for nuclear power plants— Part2: Nuts made of carbon steel and alloy steel

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Fasteners for nuclear power plants— Part3: Bolts, screws and studs made of corrosion-resistant stainless steel

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Titanium and titanium alloy bars and wire for fastener

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Designation and chemical composition of wrought copper and copper alloys

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Valve steel and superalloy bars for internal combustion engines

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Forged fitting, socket-welding and threaded

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Hot-rolled steel rails for railway

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Specification for wrought superalloy forging disks

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Designation and chemical composition of wrought nickel and nickel alloy

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Ferrosilicon

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Mechanical properties of fasteners-Stainless steel and nickel alloys bolts,  screws, studs and nuts for high temperature applications

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Chemical Compositions of wrought aluminum and aluminium alloys

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Chemical Compositions of wrought aluminum and aluminium alloys

Steels for plastic mould-Part 4: Pre-hardening steel plate

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General specification for low alloy ultra-high strength steels

GB /T 38809 - 2020

General specification for low alloy ultra-high strength steels

Superalloy powders atomized by plasma rotating electrode process

GB /T 38815 - 2020

Superalloy powders atomized by plasma rotating electrode process

High temperature bearing steel

GB /T 38886 - 2020

High temperature bearing steel

Supperalloy rods for powders atomized by plasma rotating electrode process

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Supperalloy rods for powders atomized by plasma rotating electrode process

Austenitic - ferritic duplex stainless steel wires rods

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Therrmostat metal strip

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Welded stainless steel pipes for fluid transport

GB /T 12771 - 2019

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Spheroidal graphite iron castings

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Spheroidal graphite iron castings

Steel castings for pressure purposes

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Steel castings for pressure purposes

en:Stainless steel wires for spring

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Continuously hot-dip zinc and zinc alloy coated steel sheet and strip

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Steel bars for sucker rods

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Steel bars for sucker rods

Quality structural steel cold drawm bars

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High carbon chromium stainless bearing steels

GB /T 3086 - 2019

High carbon chromium stainless bearing steels

Extrusion rods and bars of aluminium and aluminium alloys

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Extrusion rods and bars of aluminium and aluminium alloys

Urea grade ultra-low carbon austenitic seamless stainless steel tubes and pipes

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Urea grade ultra-low carbon austenitic seamless stainless steel tubes and pipes

Hot rolled steel sheet and strip of alloy structure steel

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Hot rolled steel sheet and strip of alloy structure steel

Nitriding steels

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Precision alloys—Designation

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Cold rolled low carbon steel sheet and strip

GB /T 5213 - 2019

Cold rolled low carbon steel sheet and strip

Dimension, shape, weight and tolerance for hot-rolled steel strip, plate and sheet

GB T 709 - 2019

Dimension, shape, weight and tolerance for hot-rolled steel strip, plate and sheet

Soft magnetic alloys-Part 4: Iron-cobalt alloys

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Soft magnetic alloys-Part 4: Iron-cobalt alloys

Soft magnetic alloys-Part 4: Iron-chromium alloys

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Soft magnetic alloys-Part 4: Iron-chromium alloys

Steel for the reinforcement of concrete - Part 2: Hot rolled ribbed bars

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Steel for the reinforcement of concrete - Part 2: Hot rolled ribbed bars

High strength low alloy structural steels

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High strength low alloy structural steels

Steels for plastic mould-Part 3: Corrosion resistant steels

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Steels for plastic mould-Part 3: Corrosion resistant steels

Copper alloy rods and profiles for hydraulic components

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Copper alloy rods and profiles for hydraulic components

Seamless  steel tubes for structural purposes

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Seamless steel tubes for structural purposes

Seamless pipes for liquid service

GB /T 8163 - 2018

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Hot rolled H and cut T section steel

GB /T 11263 - 2017

Hot rolled H and cut T section steel

Unalloyed aluminium ingots for remelting

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Unalloyed aluminium ingots for remelting

Steel for the reinforcement of concrete—Part 1: Hot rolled plain bars

GB /T 1499.1 - 2017

Steel for the reinforcement of concrete—Part 1: Hot rolled plain bars

Wire for quenched and tempered springs

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Wire for quenched and tempered springs

Petroleum and natural gas industries - Steel pipes for use as casing tubing for wells

GB /T 19830 - 2017

Petroleum and natural gas industries - Steel pipes for use as casing tubing for wells

Copper and copper alloy sheet

GB /T 2040 - 2017

Copper and copper alloy sheet

Continuously hot rolled high strength steel and strip for automobile-Part 1: High yield strength steel for cold forming

GB /T 20887.1 - 2017

Continuously hot rolled high strength steel and strip for automobile-Part 1: High yield strength steel for cold forming

Corrosion-resistanst steel castings for general applications

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Corrosion-resistanst steel castings for general applications

Stainless steel and heat resisting steel plate, sheet and strip for pressure equipments

GB /T 24511 - 2017

Stainless steel and heat resisting steel plate, sheet and strip for pressure equipments

Hot-rolled plates, sheets and strips of carbon structural steels and high strength low alloy structural sheets

GB /T 3274 - 2017

Hot-rolled plates, sheets and strips of carbon structural steels and high strength low alloy structural sheets

Carburizing bearing steel forgings-Technical specification

GB /T 33522 - 2017

Carburizing bearing steel forgings-Technical specification

Alloy tool and mould steel sheets and plates

GB /T 33811 - 2017

Alloy tool and mould steel sheets and plates

Copper alloy ring mateial for bearing cage

GB /T 33949 - 2017

Copper alloy ring mateial for bearing cage

Hot-rolled H section steel for electrified railway pillars

GB /T 34199 - 2017

Hot-rolled H section steel for electrified railway pillars

Elastic alloys-Part 2: Constant elastic alloys

GB /T 34471.2 - 2017

Elastic alloys-Part 2: Constant elastic alloys

Copper and copper alloy strip and foil for terminals and connectors

GB /T 34497 - 2017

Copper and copper alloy strip and foil for terminals and connectors

Structural steels - Part 2: Technical delivery conditions for structrual steels for general purposes

GB /T 34560.2 - 2017

Structural steels - Part 2: Technical delivery conditions for structrual steels for general purposes

Molybdenum and Molybdenum alloy plate and sheet

GB /T 3876 - 2017

Molybdenum and Molybdenum alloy plate and sheet

Vanadium pentoxide

GB /T 5304 - 2017

Vanadium pentoxide

Seamless steel tubes and pipes for high pressure boiler

GB /T 5310 - 2017

Seamless steel tubes and pipes for high pressure boiler

Steel plates and strip for welded gas cylinders

GB /T 6653 - 2017

Steel plates and strip for welded gas cylinders

Hot-rolled quality carbon structural steel plates sheets and strips

GB /T 711 - 2017

Hot-rolled quality carbon structural steel plates sheets and strips

Copper-tungsten and silver-tungsten electrical contacts

GB /T 8320 - 2017

Copper-tungsten and silver-tungsten electrical contacts

Specifications for retaining rings - Circlips

GB /T 959.1 - 2017

Specifications for retaining rings - Circlips

Spring steels

GB /T 1222 - 2016

Spring steels

Microalloyed medium carbon steels

GB /T 15712 - 2016

Microalloyed medium carbon steels

High -carbon chromium bearing steel

GB /T 18254 - 2016

High -carbon chromium bearing steel

Magnesium alloys ingots for castings

GB /T 19078 - 2016

Magnesium alloys ingots for castings

Screw-thread steel bars for the prestressing of concrete

GB /T 20065 - 2016

Screw-thread steel bars for the prestressing of concrete

Carburizing steels for bearing

GB /T 3203 - 2016

Carburizing steels for bearing

Welded stainless steel tubes for seawater desalination plants

GB /T 32569 - 2016

Welded stainless steel tubes for seawater desalination plants

Heavy alloy structural steel forgings-Technical specification

GB /T 33084 - 2016

Heavy alloy structural steel forgings-Technical specification

Designation and composition of titanium and titanium alloys

GB /T 3620.1 - 2016

Designation and composition of titanium and titanium alloys

Hot rolled section steel

GB /T 706 - 2016

Hot rolled section steel

Steel plate for building structure

GB /T 19879 - 2015

Steel plate for building structure

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