The role of the stainless steel flange solution treatment

Solution treatment refers to the heat treatment process in which the alloy is heated to a high temperature single-phase zone to maintain the temperature,and the excess phase is fully dissolved in the solid solution and then rapidly cooled to obtain a supersaturated solid solution.The role of the stainless steel flange solution treatment:

Stainless steel SS316 weld neck flanges and slip on flanges

Stainless steel SS316 weld neck flanges and slip on flanges

Mainly to improve the plasticity and toughness of steel and alloy,and prepare for precipitation hardening treatment.

Make the structure and composition of stainless steel uniform: the atomic activity is intensified at high temperature, the σ phase is dissolved, the chemical composition tends to be uniform, and a uniform single-phase structure is obtained after rapid cooling.

The various phases in the alloy are fully dissolved,the solid solution is strengthened,the toughness and corrosion resistance are improved,and the stress and softening are eliminated to continue processing or molding.

ASME B16.36 SS304 custom orifice flange

ASME B16.36 SS304 custom orifice flange

Eliminate work hardening, in order to facilitate the continued cold processing. Through the Solution Treatment, the lattice recovery of the twist, the elongated and broken grains recrystallize, and the internal stress is eliminated.

Restore the inherent corrosion resistance of stainless steel. Due to the precipitation of carbides due to cold working, the lattice defects cause the corrosion resistance of the stainless steel to decrease. After the Solution Treatment, the corrosion resistance of the stainless steel is restored to a good condition.

Stainless steel SS316 spectacle blind flange

Stainless steel SS316 spectacle blind flange

Haihao Group can supply various types stainless steel flanges such as weld neck flange,slip on flange,blind flange,threaded flange,plate flange(plain flange),spectacle blind flange,orifice flange,socket weld flange,lap joint flange(loose flange),long weld neck flange,reducing flange,rolled forging ring flange,flange olet,tube sheet,anchor flange,non standard flange(custom flange).

The stainless steel flanges materials: ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51 etc.

The stainless steel forged flanges standards: ANSI/ASME B16.5,B16.47,B16.36,B16.48,AWWA C207,API 6A/6B/6BX,DIN 2527,DIN 2573,DIN 2576,DIN 2631,DIN 2632,DIN 2633,DIN 2634,DIN 2635,DIN 2566,DIN 2642,EN 1092,BS 4504,JIS B2220,GOST 12820,GOST 12821,SABS 1123,AS 1219 etc.

If you want to know more about our forged flanges,please email us:sales@haihaogroup.com

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