GB/T 32238-2015General steel castings suitable for low temperature and high pressure service (English PDF)

1 Scope

This standard specifies the technical requirements for low pressure GM castings, test methods, inspection rules and signs, storage, packaging and transportation

Claim.

This standard applies at -196 °C ~ -30 °C conditions of casting valves, flanges, fittings, and other pressure steel castings, other low pressure

General Steel Castings can use and reference.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 222 chemical composition of finished steel tolerance

GB/T 223.4 steel and alloy - Determination of manganese content or visual titration potentiometric titration

GB/T 223.5 steel measuring soluble silicon and total silicon content reduced silicon molybdate salt spectrophotometric method

Determination of GB/T 223.11 steel and alloy chromium content of visual titration or potentiometric titration

GB/T 223.14 Methods for chemical analysis of iron, steel and alloys, tantalum reagent extraction and spectrophotometric determination of vanadium content

GB/T 223.23 steel and alloy - Determination of nickel content dimethylglyoxime spectrophotometry

GB/T 223.26 steel and alloy - Determination of molybdenum content - Thiocyanate spectrophotometric

GB/T 223.43 steel and alloy of tungsten content - Gravimetric method and spectrophotometry

GB/T 223.59 Steel and Alloy Determination of phosphorus content by bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometry

GB/T 223.67 steel and alloy sulfur content - Methylene blue spectrophotometric method

GB/T 223.69 after carbon and alloy steel - Determination of the pipe furnace combustion gas volumetric method

RT Test Method. Test Part 1 GB/T 228.1 metallic materials tensile

GB/T 229 metal Charpy pendulum impact test method

GB/T 4336 carbon steel and low alloy steel spark source atomic emission spectrometry method (conventional method)

GB/T 5677 Steel Castings radiographic testing

GB/T 6060.1 Roughness comparison specimens - Cast surfaces

GB/T 6414 casting dimensional tolerances and machining allowances

GB/T 7233.2 steel castings Ultrasonic examination - Part 2. High Pressure Steel Casting

GB/T 8170 repair value expressed about the rules and limit values and judgment

GB/T 9443 steel castings penetrant testing

GB/T 9444 steel castings - Magnetic particle testing

GB/T 15056 Evaluation Method of casting surface roughness

GB/T 20066 Steel and iron - Sampling and determination of the chemical composition of the sample with a sample preparation method

3 Technical requirements