ASTM A632 STEEL PIPE

Keywords（pipe type）:Stainless Steel Pipe, Stainless Steel Tube, Stainless Steel Tubing
Size:OD: from 6mm to 1000mm (NPS from 1/8' to 40');WT: from 0.7mm to 38mm (Schedule from 5S to XXS);Length: fix length or un-fix length, Max 30meters
Standard:ASTM, ASME, DIN, EN, ISO,JIS, GOST, etc.
Steel Grades:304, 304L, 310/S, 310H, 316, 316L, 321, 321H
Delivery:Within 30 days and Depends on your order quantity
Payment:TT, LC , OA , D/P
Surface:Pickling and annealing;AP tube;BA tube
Packing:Bundles with waterproof cloth outside.or plywood box. or for the client's requirement
Usage:In Chemical Industry, Coal, Oil Field Open Machine, Building Materials Heat-resistant Parts.
Description
The specification covers grades of stainless steel tubing for general corrosion-resisting and low or high-temperature service. The tubes shall be cold finished and shall be made by the seamless or welded process. All material shall be furnished in the heat-treated condition. The heat-treatment procedure shall consist of heating the material and quenching in water or rapidly cooling by other means. Tension tests, flaring tests, hydrostatic tests, air underwater pressure tests, and nondestructive electric tests shall be performed in accordance to the specified requirements.

This specification covers grades of stainless steel tubing in sizes under 1/2 down to 0.050 in. (12.7 to 1.27 mm) in outside diameter and wall thicknesses less than 0.065 in. down to 0.005 in. (1.65 to 0.13 mm) for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.

NOTE 1: The grades of austenitic stainless steel tubing furnished in accordance with this specification have been found suitable for low-temperature service down to −325°F (−200°C) in which Charpy notched-bar impact values of 15 ft·lbf (20 J), minimum, are required and these grades need not be impact tested.
(A) New designation established in accordance with Practice E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
(B) For seamless TP316L tubes, the silicon maximum shall be 1.00 %.
(C) For welded TP 316 tubes, the nickel range shall be 10.0–14.0 %.
(D) Grade TP 321 shall have a titanium content of not less than five times the carbon content and not more than 0.60 %.
(E) Grades TP 347 and TP 348 shall have a columbium plus tantalum content of not less than ten times the carbon content and not more than 1.0 %.

1.2 Optional supplementary requirements are provided and, when desired, shall be so stated in the order.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Painting & Coating
annealing and pickling surface, bright annealing surface, OD polished surface, OD & ID polished surface etc.

Surface Finish
Definition
Application
2B
Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.
Medical equipment, Food industry, Construction material, Kitchen utensils.
BA
Those processed with bright heat treatment after cold rolling.
Kitchen utensils, Electric equipment, Building construction.
NO.3
Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001.
Kitchen utensils, Building construction.
NO.4
Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.
Kitchen utensils, Building construction, Medical equipment.
HL
Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.
Building construction
NO.1
The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.
Chemical tank, pipe.