Stainless steel heat exchange tube implementation standard and application scope

1 scope

Classification, code, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of seamless stainless steel tubes for boilers and heat exchangers.

This standard applies to seamless austenitic and ferritic stainless steel tubes used in boilers and heat exchangers.

2 Normative reference documents

The provisions of the following documents are incorporated into this international standard by reference. All subsequent amendments (excluding errata) or revisions to dated references do not apply to this international Standard. However, parties to an agreement under this International Standard are encouraged to investigate the use of versions of these documents. For undated references, versions of this international standard apply.

GB/T 222 steel chemical composition allowable deviation

Steel and alloys -- Determination of chromium content -- ammonium persulfate oxidation capacity method

Methods for chemical analysis of steel and alloys -- The gravimetric method for the determination of titanium

Methods for chemical analysis of steel and alloys -- The chromic acid photometric method for the determination of titanium content

Methods for chemical analysis of steel and alloys -- Sodium thiosulfate separation-iodimetry method for the determination of copper content

Steel and alloys -- Determination of nickel content -- dibutyl ketoxime spectrophotometric method

Methods for chemical analysis of iron, steel and alloys -- the gravimetric method for the determination of nickel content

Methods for chemical analysis of iron, steel and alloys -- Direct photometric determination of molybdenum content by thiocyanate

Steel and alloys -- Determination of molybdenum content -- α -Benzoin oxime gravimetric method

Methods for chemical analysis of iron, steel and alloys -- the distillation separation-neutralization titration method for the determination of nitrogen content

Methods for chemical analysis of iron, steel and alloys -- distillation separation-indiophenol blue ray method for the determination of nitrogen content

Methods for chemical analysis of iron, steel and alloys -- ion exchange separation-chlorsulfonphenol S photometric method for the determination of niobium content

Methods for chemical analysis of iron, steel and alloys -- Ion exchange separation-pyrogallol photometric determination of tantalum content

Methods for chemical analysis of iron, steel and alloys -- Ion exchange separation-bromocalcinol red photometric method -- Determination of tantalum content

Methods for chemical analysis of iron, steel and alloys -- the perchloric acid dehydration gravimetric method for the determination of silicon content

Methods for chemical analysis of steel and alloys -- the butyl acetate extraction photometric method for the determination of phosphorus content

Steel and alloys -- Determination of manganese content -- Sodium periodate (potassium) photometric method

Methods for chemical analysis of iron, steel and alloys -- determination of sulfur content -- potassium iodate titration after combustion in a tubular furnace

Methods for chemical analysis of steel and alloys -- Determination of carbon content by the gas volumetric method after combustion in a tubular furnace

Metallic materials -- Tensile test method at room temperature -- 228-2002, EQV ISO 389:1998)

GB/T 230.1 Metallic Rockwell Hardness Test -- Test Method (SCALES A, B, C, D, E, F, G, H, K, N, T)

GB/T 231.1 Brinell hardness test -- Part: Test Method

GB/T 241 Metal pipe hydraulic test method

GB/T 242 Test method for flaring of metal tubes (GB/T 242-1997, EQV ISO 8493:1986)

GB/T 246 Test method for flattening metal tubes (GB/T 246-1997, EQV ISO 8492:1986)

Acceptance, packing, marking and quality certificate of GB/T 2102 steel tube

GB/T 2975 Mechanical properties of steel and steel products sampling location and sample preparation (GB/T 2975-1998, EQV ISO 377:1997)

GB/T 4334.5 Stainless steel sulfuric acid - copper sulfate corrosion test method

GB/T 4338 Metallic materials -- Tensile test method at high temperature (GB/T 4338-2006,ISO 738:1989)