ASTM A403 Wrought Austenitic Stainless Steel Elbows

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ASTM A403 Wrought Austenitic Stainless Steel Elbows

ASTM A403 standard overview

ASTM A403 specification covers wrought stainless steel fittings for pressure piping applications. Several grades of austenitic stainless steel alloys are included in this specification grades are designated with a prefix, WP or CR, All fittings shall be furnish in the heat treated condition.For each of the WP stainless grades, several classes of fittings are covered, to indicated whether seamless or welded construction was utilized. Class designations are also utilized to indicate the nondestructive test method and extent of nondestructive examination. Fitting classes for WP grades as below,

Mechanical properties of major grade

Introduction of stainless steel elbows

Elbow is a kind of pipe fittings commonly used in plumbing installation, which apply for connecting two pipes and changing the direction of pipes with the same or different diameters.

Series of the stainless steel elbows includes reducing elbow,base elbow,long radius elbow,short radius elbow,threaded elbow,socket welded elbow, etc.

Surface finish,appearance and corrosion of ASTM A403 wrought austenitic stainless steel elbows

Elbows we supplied under this specification shall be examined visually. Selected typical surface discontinuities shall be explored for depth. The elbows shall be free from surface discontinuities that penetrate more than 5% of the specified nominal wall thickness and shall have a workmanlike finish.Surface checks (fish scale) deeper than 1/64 inch(0.4)mm shall be removed. Mechanical marks deeper than 1/16 inch(1.6mm) shall be removed.

Usage for ASTM A403 wrought austenitic stainless steel elbows

Owing to the excellent comprehensive performance of the stainless steel elbows, it is widely used in chemical industry, construction, water supply, drainage system, petroleum, light and heavy industry, refrigeration installation, water heating, fire protection, power, aerospace engineering, shipbuilding and so on.

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