Stainless Steel 317

Classification :

317 stainless steel, also known as UNS S31700 and Grade 317, is primarily comprised of 18% to 20% chromium and 11% to 15% nickel along with trace amounts of carbon, phosphorus, sulfur, silicon and balanced with iron.

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Stainless Steel Plate

Product information

UNS S31700/S31703 commonly known as Stainless Steel 317/317L Dual Certified is the low carbon content version of Stainless Steel 317 for welded structures.
Features and advantages of both Stainless Steel 317 and 317/317L Dual Certified include increased strength, corrosion resistance (including crevice and pitting), higher tensile strength and a higher stress-to-rupture ratio. Both grades resist pitting in acetic and phosphoric acids. With respect to cold working of Stainless Steel 317 and 317/317L Dual Certified, stamping, shearing, drawing and heading can all be successfully performed. In addition, annealing can be performed on both grades between 1850 F and 2050 F, followed by rapid cooling. Furthermore, all common hot working methods are possible with Stainless Steel 317 and 317/317L Dual Certified, between 2100 F and 2300 F.

Technical data

Allegheny Ludlum Stainless Steel Chromium-Nickel-Molybdenum 317L (UNS S31703)

Subcategory: Metal; Stainless Steel; T 300 Series Stainless Steel

Key Words: Plate, sheet, and tube spec is ASTM A-240

Chemical Composition

C	Cr	Mn	Mo	Ni	P	S	Si
Max	–	Max	–	–	Max	Max	Max
0.035	18.0 – 20.0	2.0	3.0 – 4.0	11.0 – 15.0	0.04	0.03	0.75

Mechanical Properties

Minimum Specified Properties, ASTM A240

Ultimate Tensile Strength, ksi Minimum	.2% Yield Strength, ksi Minimum	Elongation Percent	Hardness Max.
75	30	35	217 Brinell

Welding 317L

317L is readily welded by a full range of conventional welding procedures (except oxyacetylene). AWS E317L/ER317L filler metal or austenitic, low carbon filler metals with molybdenum content higher than that of 317L, or a nickel-base filler metal with sufficient chromium and molybdenum content to exceed the corrosion resistance of 317L should be used to weld 317L steel.

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Stainless Steel Plate