GB/T 31941-2015Non-nuclear safety class welded carbon steel and alloy steel pipes for nuclear power plant (English PDF)

1 Scope

This standard specifies the content, size, shape, weight and allowable deviation of non-nuclear safety grade carbon steel and alloy steel welded steel tubes for nuclear power plants

Poor, technical requirements, test methods, inspection rules, packaging, marking and quality certificates.

This standard applies to nuclear power plant construction with non-nuclear safety level pressure equipment with carbon steel and alloy steel welded steel pipe.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 222 Determination of chemical composition of finished steel

GB/T 223.3 Methods for chemical analysis of iron, steel and alloy The diantipyrylmethane phosphomolybdic acid gravimetric method for the determination of phosphorus

GB/T 223.5 Determination of silicon and total silicon content of iron and silicon in steel - Reduced molybdosilicate spectrophotometric method

GB/T 223.10 Methods for chemical analysis of iron, steel and alloy - Copper and iron reagent separation - Chromazurol S photometric method for the determination of aluminum content

Steel and alloys - Determination of chromium content - Visual titration or potentiometric titration

GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - Sodium carbonate separation - Diphenylcarbazide spectrophotometric method for the determination of chromium content

GB/T 223.14 Methods for chemical analysis of iron, steel and alloy - The tantalum reagent extraction spectrophotometric method for the determination of vanadium content

Methods for chemical analysis of iron, steel and alloy - The chromotropic acid photometric method for the determination of titanium content GB/T GB/T 223.18 Methods for chemical analysis of iron, steel and alloy - Sodium thiosulfate separation - iodometric method for the determination of copper content

GB/T 223.19 Methods for chemical analysis of iron, steel and alloy The new sub-copper spirit-chloroform extraction spectrophotometric method for the determination of copper content

Iron and steel - Determination of nickel content - Butadiene oxime spectrophotometric method GB/T GB/T 223.24 Methods for chemical analysis of iron, steel and alloy - The extraction and separation - The butanedione oxime spectrophotometric method for the determination of nickel content

GB/T 223.27 Methods for chemical analysis of iron, steel and alloy The thiocyanate-butyl acetate extraction spectrophotometric method for the determination of molybdenum content

GB/T 223.28 Methods for chemical analysis of iron, steel and alloy The alpha-benzooxime gravimetric method for the determination of molybdenum content

GB/T 223.36 Methods for chemical analysis of iron, steel and alloy - Distillation separation - Neutralization titration for the determination of nitrogen content

GB/T 223.37 Methods for chemical analysis of iron, steel and alloy - Distillation separation - indophenol blue photometric method for the determination of nitrogen content

Iron and steel - Determination of niobium content - Chlorosulfonol S spectrophotometric method GB/T GB/T 223.53 Methods for chemical analysis of iron, steel and alloy - Flame atomic absorption spectrophotometric method for the determination of nitrogen content

GB/T 223.54 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content

GB/T 223.58 Methods for chemical analysis of iron, steel and alloy The sodium arsenite - sodium nitrite titration method for the determination of manganese content

GB/T 223.59 Determination of phosphorus content of iron, steel and alloy - Bismuth phosphorus molybdenum blue spectrophotometric method and antimony phosphomolybdenum blue spectrophotometric method

GB/T 223.60 Methods for chemical analysis of iron, steel and alloy - Perchloric acid dehydration gravimetric method for the determination of silicon content

Methods for chemical analysis of iron, steel and alloy - The ammonium phosphomolybdate volumetric method for the determination of phosphorus content GB/T GB/T 223.62 Methods for chemical analysis of iron, steel and alloy The butyl acetate extraction spectrophotometric method for the determination of phosphorus

GB/T 223.63 Methods for chemical analysis of iron, steel and alloy The sodium periodate (potassium) spectrophotometric method for the determination of manganese content

Iron and steel - Determination of manganese content - Flame atomic absorption spectrometric method GB/T Iron and steel - Determination of sulfur content - Dimethyl blue spectrophotometric method GB/T […]