GB/T 18704-2008Stainless steel clad pipes for structural purposes (English PDF)

1 Scope

This standard specifies the classification code, size, shape, weight, technical requirements, test methods, inspection rules structure with stainless steel composite pipe,

Logo, packaging and storage.

This standard applies to municipal facilities, vehicle manufacturing, bridge fence, traffic barrier, rail fence, platform guardrail, railway catenary, construction equipment

Ornaments, steel grid, medical equipment, furniture, general mechanical structural components made of stainless steel composite pipe (hereinafter referred to as composite pipe).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 222 chemical composition of finished steel tolerance

Spectrophotometric determination of GB/T 223.5 steel and alloy chemical analysis method further prototype silicon molybdate soluble silicon content

Determination of chromium content GB/T 223.11 Methods for chemical analysis of iron, steel and alloy The ammonium persulfate oxidation volumetric method

GB/T 223.23 Methods for chemical analysis of iron, steel and alloy dimethylglyoxime spectrophotometric determination of nickel content

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

GB/T 223.59 Methods for chemical analysis of iron, steel and alloy antimony phosphomolybdate blue spectrophotometric determination of phosphorus content

Determination of sulfur content of potassium iodate titration method after GB/T 223.68 Methods for chemical analysis of iron, steel and alloy tube furnace combustion

The determination of carbon content of the gas volumetric method after GB/T 223.69 Methods for chemical analysis of iron, steel and alloy tube furnace combustion

GB/T 228 metal materials at room temperature tensile test method (GB/T 228-2002, eqv ISO 6892.1998)

GB/T 242 Test Method metal tube expansion port (GB/T 242-2007, ISO 8493.1998, IDT)

GB/T 244 metal pipe bending test method (GB/T 244-1997, eqv ISO 8491. 1986)

GB/T 246 metal pipe flattening test method (GB/T 246-2007, ISO 8492.1998, IDT)

GB/T 700 carbon structural steel

GB 912 carbon structural steel and low-alloy structural steel sheets and strips

GB/T 2102 Acceptance, packing, marking and quality certificate

GB/T 3280 stainless steel cold-rolled steel

GB/T 12770 mechanical structure with stainless steel welded pipe

GB/T 13793 straight seam welded steel pipe

GB/T 11253 carbon steel and low alloy steel cold-rolled steel sheet and strip

3 Terms and Definitions

The following definitions apply to this standard.

Substrate (inner layer) using carbon steel strip cladding (outer layer) made of stainless steel, tightly clad continuous welded steel pipe.

4 classification code