STAINLESS STEEL 304H PIPE FITTING

SPECIFICATIONS

SS 304H Pipe Fitting are available in different grades and standards. Some of the standard features these are made available in include
Specifications : ASTM A403 / ASME SA403
Dimensions : ANSI/ASME B16.9, B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Thickness : 5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75

 

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After cold forming (work hardening) and after welding (risk of inter-granular corrosion in the weld joint) in Stainless Steel 304H Butt Weld Fittings, an annealing treatment for a couple of minutes followed by air cooling restores the microstructure (re-crystallization and dissolution of carbides) and eliminates internal stresses. Heavy section welding in Stainless Steel 304H Elbow is required and post-weld heat treatment is not possible. SS 304H Teemay be required for full corrosion resistance when thicker sections are welded. As the most widely and versatile used among all alloys, the mechanical attributes and chemical composition of Stainless Steel 304H Reducer offer the finest all-around show at comparatively lower cost. SS 304H Cross has higher strength at elevated temperatures. Assessment of these parameters in Stainless Steel 304H Bend and accurate prediction of the probability of SCC occurring in service is therefore difficult. Our Stainless Steel 304H Stub End cannot be hardened by thermal treatment.

 

LIST OF STAINLESS STEEL 304H PIPE FITTING

This Stainless Steel 304H End Cap is subject to work hardening during deformation and is subject to chip breaking. Weldments in our Stainless Steel 304H Dish Cap may be sensitive to inter-granular corrosion in oxidizing acid environments, and to polythionic acid stress corrosion cracking. This SS 304H Lateral Tee provides improved high temperature strength when exposed to temperatures above 800 Degree F. These SS 304H Concentric Reducer is non hardenable by heat treatment, and can only be hardened by cold working.

 

Equivalent Grades for 304H Stainless Steel Pipe Fitting

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
304H S30409 304S11 58E 1.4948 X5CrNi18-10 2332 SUS 304H

 

304H SS Seamless Buttweld Fittings Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
304H min. – – – – – 18.0 – 8.0 –
max. 0.10 2.0 0.75 0.045 0.03 20.0 10.5 –

 

Stainless Steel 304H Welded Pipe Fitting Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304H 515 205 40 92 201