1 WELDED FABRICATIONS 1.1 SCOPE This specification defines the minimum requirements for the welding and inspection of welded fabrications and steel structures when supplied as part of mechanical equipment. 2 PROCEDURE QUALIFICATIONS Welding procedure qualifications and welder performance qualifications shall be carried out in accordance with: • ASME IX and • AWS D1.1 AWS D1.1. Prequalified permitted…
ASTM A 790 Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe This specification covers seamless and straight-seam welded ferritic/austenitic steel pipe intended for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures. UNS number: S32205 (Ferritic/Austenitic steel) Manufacture The pipe shall…
Orders for material under this specification should include the following, as required, to describe the desired material adequately:1 Quantity (feet, metres), or number of lengths),2 Name of material (ferritic/austenitic steel pipe),3 Process (seamless or welded),4 Grade,5 Size (NPS designator or outside diameter and schedule number of average wall thickness),6 Length (specific or random) (see Section…
Product Name: Seamless steel pipes and fittings Material & Grade: A519 4130 Size: 3″, OD=88.9mm Thickness: XXS(15.24mm) Ends: Bevel Heat Treatment: Quenched and Tempered (Q+T) Manufacture Standard: ASTM A519 & ASME B16.9 LFPCO has our own chemical analysis and mechanics test lab. We can also independently complete non-destructive testing such as X-ray and ultrasonic testing.…
This batch of filters is a complete set of ASME B31.3 piping equipment, manufactured by our factory in accordance with the customer’s design drawings. Nominal size is DN600, total length is 2974mm, and the piping transmission medium is oil, gas and water containing H2S and CO2. Design pressure is 3.4MPa, hydraulic test pressure is 5.1MPa.…
ASTM A672 Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures This specification covers steel pipe: electric-fusion welded with filler metal added, fabricated from pressure-vessel quality plate of any of several analyses and strength levels and suitable for high-pressure service at moderate temperatures. Heat treatment may or may not be required to attain the desired…
ASTM A795 Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use ASTM A795 covers black and hot-dipped galvanized welded and seamless steel pipe in sizes NPS 1/2 to NPS 10 inclusive, with wall thicknesses as given in Table 1 and Table 2. Pipe having other wall thicknesses may be furnished…
Minimum thickness of 3 layer polyethylene coating DIN 30670 – Polyethylene coatings for steel pipes and fittings Nominal size of pipe Minimum thickness of normal coating, in mm Up to DN100 1.8 Over DN100 up to DN250 2.0 Over DN250 up to below DN500 2.2 From DN500 up to below DN800 2.5 From DN800 3.0…
GOST 4543 Alloyed Construciton Steel Gost 4543 applies to alloyed construction hot-rolled and forged gauged steel with diameter or thickness up to 250 mm, and steel with a special surface finish, used in a thermally treated condition and produced in the form of bars, strips and hanks. Regarding the standards for chemical composition this Standard…
ASTM A312 – Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service. The pipe shall be manufactured by one of the following processes: 1) Seamless (SML) pipe shall be made by a…