Intergranular Corrosion of Stainless Steel Tubes By yaang.com

When austenitic stainless steel tubes are heated or cooled through the temperature range 425-900C (800-1650F), chromium tends to combine with carbon to form chromium carbides. The carbides precipitate preferen- tially at grain boundaries depleting chromium from the adjacent areas. This reduces the corrosion resistance of the chromium depleted areas, sensitizing the alloy to Intergranular Attack (IGA).

(UNS S31700/S31703) 317/317L Stainless Steel Bars By yaang.com

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.

UNS S31700/S31703 commonly known as 317/317L Stainless Steel is the low carbon content version of Stainless Steel 317 for welded structures.

317L Stainless Steel Applications, Chemical Composition By yaang.com

317L Stainless Steel is a molybdenum bearing austenitic chromium nickel steel similar to type 316 Stainless Steel, except the alloy content in 317L Stainless Steel is somewhat higher. It has a supperior corrosion resistance in special applications where it is desired to reduce contamination to a minimum. 317L Stainless Steel was developed primarily to resist more effectively the attack of sulfurous acid compounds. Howerver, its proven ability to combat corrosion has widened its use considerably and is now being used for many other industrial applications. The low carbon content of 317L Stainless Steel provides immunity to intergranular corrosion in applications where heavy cross sections cannot be annealed after welding or where low temperature stress relieving treatments are desired.

What is 317L Stainless Steel UNS S31703?

317L Stainless Steel Overview

Stainless Steel 317L is a molybdenum bearing, low carbon content "L" grade austenitic stainless steel that provides improved corrosion resistance over 304L and 316L stainless steels. The low carbon provides resistance to sensitization during welding and other thermal processes.

Stainless Steel 317L is non-magnetic in the annealed condition but may become slightly magnetic as a result of welding.

317/317L STAINLESS STEEL By yaang.com

317/317L Stainless Steel is an austenitic stainless steel which contains molybdenum. This grade has improved corrosion resistance over 304/304L Stainless Steel and 316/316L Stainless Steel. 317/317L Stainless Steel By controlling the addition of nitrogen, 317 Stainless Steel commonly meets the properties of the straight grade 317 Stainless Steel except for it's lower carbon content.

317L Stainless Steel (UNS S31703) Chemistry Typical, Properties By yaang.com

317L Stainless Steel Description

Type 317L Stainless Steel (UNS 31703) is a low carbon austenitic chromium-nickel stainless steel that can be used in applications where it is not possible to anneal after welding and where maximum corrosion resistance is required. It provides good oxidation resistance in intermittent service to 1600°F and in continuous service to 1700°F.

Stainless Steel Grade 317L (UNS S31703) By yaang.com

Stainless steel grade 317L is a low carbon version of grade 317 stainless steel. It has the same high strength and corrosion resistance as 317 steel but can produce stronger welds due to the low carbon content.

The following datasheet provides an overview of stainless steel grade 317L.