Executive standard and application scope of stainless steel heat exchange tube

Executive standard and application scope of stainless steel heat exchange tube

1 Scope

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

This standard is applicable to Seamless Austenitic and ferritic stainless steel tubes for boilers and heat exchangers.

2 normative references

The terms in the following documents become the terms of this standard by reference to this standard. For dated references all subsequent amendments (excluding the contents of Corrigendum) or revisions are not applicable to this standard. However it is encouraged that all parties to an agreement based on this standard study whether to use the versions of these documents. For undated references their versions are applicable to this standard.

GB / T 222 permissible deviation of chemical composition of steel products

Methods for chemical analysis of iron steel and alloy the ammonium persulfate oxidation volumetric method for the determination of chromium content

Methods for chemical analysis of iron steel and alloy The gravimetric method for the determination of titanium

Methods for chemical analysis of iron steel and alloy The chromotropic acid photometric method for the determination of titanium content

GB / T 223.18 methods for chemical analysis of iron steel and alloy the sodium thiosulfate separation iodometric method for the determination of copper content

GB / T 223.23 methods for chemical analysis of iron steel and alloy the Dimethylglyoxime spectrophotometric method for the determination of nickel content

Methods for chemical analysis of iron steel and alloy The dimethylglyoxime gravimetric method for the determination of nickel content

Methods for chemical analysis of iron steel and alloy -- The thiocyanate direct photometric method for the determination of molybdenum content

GB / T 223.28 methods for chemical analysis of iron steel and alloy the α - benzoin oxime gravimetric method for the determination of molybdenum content

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

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 methods for chemical analysis of iron steel and alloy the ion exchange separation chlorosulfonol S photometric method for the determination of niobium content

Methods for chemical analysis of iron steel and alloy -- the ion exchange separation pyrogallol photometric method for the determination of tantalum content

Methods for chemical analysis of iron steel and alloy the ion exchange separation bromopyrogallol red photometric method for the determination of tantalum content

GB / T 223.60 methods for chemical analysis of iron steel and alloy The perchloric acid dehydration gravimetric method for the determination of silicon content

GB / T 223.62 methods for chemical analysis of iron steel and alloy the butyl acetate extraction photometric method for the determination of phosphorus content

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

GB / T 223.68 methods for chemical analysis of iron steel and alloy the potassium iodate titrimetric method for the determination of sulfur content after combustion in a tubular furnace

GB / T 223.69 methods for chemical analysis of iron steel and alloy the gas volumetric method after combustion in a tubular furnace for the determination of carbon content

GB / T 228 tensile test method of metallic materials at room temperature GB / T 228-2002 EQV ISO 389:1998)

GB / T 230.1 metallic Rockwell hardness test part: Test methods (scales a B C D e F G h K N t) (GB / T 230.1-2004 ISO 6508-1:1999 MOD)

GB / T 231.1 metallic Brinell hardness test part: Test Method (GB / T 231.1-2002 ISO 6506-1:1999)

GB / T 241 hydraulic test method for metal pipe

GB / T 242-1997 EQV ISO 8493:1986

GB / T 246 metal tube flattening test method (GB / T 246-1997 EQV ISO 8492:1986)

GB / T 2102 steel pipe acceptance packaging marking and quality certificate

GB / T 2975 steel and steel products - mechanical properties - sampling locations and preparation of test specimens (GB / T 2975-1998 EQV ISO 377:1997)

GB / T 4334.5 test method for sulfuric acid copper sulfate corrosion of stainless steel

GB / T 4338 high temperature tensile test method for metallic materials (GB / T 4338-2006 ISO 738:1989)