GB/T 2100-2017Corrosion-resistant steel castings for general applications (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 2100-2002 "Corrosion-resistant steel castings for

general purposes". As compared with GB/T 2100-2002, the main technical

contents are changed as follows.

- CHANGE the standard name into "Corrosion-resistant steel castings for

general applications";

- ADD 9 kinds of material grades including ZG06Cr13Ni4Mo, ZG08Cr12Ni1,

ZG05Cr26Ni6Mo2N, ZG03Cr22Ni6Mo3N, ZG03Cr25Ni7Mo4WCuN,

ZG03Cr26Ni7Mo4CuN, ZG025Cr20Ni25Mo7Cu1N,

ZG025Cr20Ni19Mo7CuN and ZG03Cr26Ni6Mo3N;

- MODIFY the specifications of the tensile test specimen;

- MODIFY the technical requirements for major welding repairs;

- MODIFY the mechanical properties and heat treatment specifications of

ZG20Cr13.

This standard uses the redrafting method to modify and adopt ISO 11972.2015

"Corrosion-resistant cast steels for general applications". As compared with ISO

11972.2015, this standard has made major adjustments to the standard

structure. Appendix A lists the clause number comparison between this

standard and ISO 11972.2015.

The main technical differences between this standard and ISO 11972.2015 and

its causes are as follows.

- With regard to normative references, this standard has made adjustments

with technical differences to adapt to China's technical conditions. The

adjustments are centrally reflected in clause 2 "Normative references", with

specific adjustments as follows.

- ADD 28 normative references such as steel and alloy chemical analysis

methods.

- From the consideration of standard applicability, ADD clause 4 test methods,

clause 5 inspection rules, and clause 6 marking storage packaging and

transportation.

This standard was proposed by and shall be under the jurisdiction of the

National Foundry Standardization Technical Committee (SAC/TC 54).

Corrosion-resistant steel

castings for general applications

1 Scope

This standard specifies the technical requirements, test methods, inspection

rules and markings, storage, packaging and transportation of corrosion-

resistant steel castings for general applications.

This standard applies to corrosion-resistant steel castings for general

applications for various corrosion conditions.

2 Normative references

The following documents are essential to the application of this document. For

the dated documents, only the versions with the dates indicated are applicable

to this document; for the undated documents, only the latest version (including

all the amendments) are applicable to this standard.

GB/T 222 Permissible tolerances for chemical composition of steel products

GB/T 223.4 Alloyed steel - Determination of manganese content -

Potentiometric or visual titration method

GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total

silicon content - Reduced molybdosilicate spectrophotometric method

GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - The

sodium carbonate separation-diphenyl carbazide photometric method for the

determination of chromium content

GB/T 223.13 Methods for chemical analysis of iron, steel and alloy - The

ammonium ferrous sulfate titration method for the determination of vanadium

content

GB/T 223.19 Methods for chemical analysis of iron, steel and alloy - The

neocuproine-chloroform extraction photometric method for the

determination of copper content

GB/T 223.24 Methods for chemical analysis of iron, steel and alloy - The

extraction separation -The dimethylglyoxime spectrophotometric method for

the determination of nickel content

GB/T 223.26 Iron, steel and alloy - Determination of molybdenum content -

The thiocyanate spectrophotometric method

GB/T 223.37 Methods for chemical analysis of iron, steel and alloy - The

indophenol blue photometric method for the determination of nitrogen

content after distillation separation

GB/T 223.40 Iron, Steel and Alloy - Determination of niobium content by the

sulphochlorophenol S spectrophotometric method

GB/T 223.43 Iron steel and alloy - Determination of tungsten content -

Gravimetric method and spectrophotometric method

GB/T 223.61 Methods for chemical analysis of iron, steel and alloy - The

ammonium phosphomolybdate volumetric method for the determination of

phosphorus content

GB/T 223.69 Iron, steel and alloy - Determination of carbon contents - Gas-

volumetric method after combustion in the pipe furnace

GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared

absorption method after combustion in an induction furnace (GB/T 223.85-

2009, ISO 4935.1989, IDT)

GB/T 228.1 Metallic materials - Tensile testing - Part 1. Method of test at

room temperature (GB/T 228.1-2010, ISO 6892-1.2009, MOD)

GB/T 229 Metallic materials - Charpy pendulum impact test method (GB/T

229-2007, ISO 148-1.2006, MOD)

GB/T 5677 Radiographic testing for steel castings (GB/T 5677-2077, ISO

4993.1987, IDT)

GB/T 6060.1 Roughness comparison specimens - Cast surfaces

GB/T 6414 Castings - System of dimensional tolerances and machining

allowances

GB/T 7233.1 Steel castings - Ultrasonic examination - Part 1. Steel castings

for general purposes (GB/T 7233.1-2009, ISO 4992-1.2006, MOD)

GB/T 8170 Rules of rounding off for numerical values & expression and

judgement of limiting values

GB/T 9443 Penetrant testing for steel castings (GB/T 9443-2007, ISO

4987.1992, IDT)

GB/T 9444 Magnetic particle testing for steel castings (GB/T 9444-2007, ISO

6 Markings, storage, packaging and transportation