Tuesday, January 4, 2022

317L

TypeSeamless & Welded PipeButt Weld FittingsFlanges & Pressure Fittings
Sizes1/4″ thru 16″1/2″ thru 12″All descriptions
SchedulesSch 10, 40, 80, 160, & XXHSch 10, 40, 80, 160, & XXH
ASTM Standards
BarButt Weld FittingsForgingsPipe, Welded & SeamlessTube, WeldedTube, SeamlessPlate
A167A403A182A312A249A213A240
Minimum Physical Properties
Tensile StrengthYield Strength
75 KSI Min.30 KSI Min.
Chemical Composition (wt%)
CMnPSSiNiCrFeMo
0.03 Max2.00 Max0.04 Max0.03 Max0.03 Max11.0 – 15.018.0 – 20.0Balance3.0 – 4.0

Properties

317L is a low-carbon stainless steel with increased additions of chromium, nickel and molybdenum for better corrosion resistance than type 316L. This steel resists attack from sulphurous, acetic, formic, citric and tartaric acids as well as combatting the tendency to pit when in contact with phosphorous acid, chlorides, bromides and iodides.

Applications

317L is used to handle sulphur, pulp liquor, acid dyestuffs, acetylating and nitrating mixtures, bleaching solutions, severe coal and oil smoke, and many chemical compounds. Some typical examples include:

* Paper and pulp handling equipment
* Textile equipment
* Food-processing equipment

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