317L raises molybdenum to 3–4% and chromium to 18–20%, which buys a meaningful increase in pitting resistance over 316L without moving to the cost of 904L or 6-Moly. It is the grade of choice for flue gas desulphurisation, pulp bleaching and acid service where 316L has been shown to pit but the duty does not justify a super-austenitic.
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
Rajgranth Metal & Alloys manufactures, stocks, supplies and exports Stainless Steel 317 and 317L flat Bars (UNS S31700 / S31703) from Mumbai. Higher molybdenum than 316, at 3–4%. The step up before super-austenitics. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
317L raises molybdenum to 3–4% and chromium to 18–20%, which buys a meaningful increase in pitting resistance over 316L without moving to the cost of 904L or 6-Moly. It is the grade of choice for flue gas desulphurisation, pulp bleaching and acid service where 316L has been shown to pit but the duty does not justify a super-austenitic.
Stainless Steel 317 and 317L is also designated UNS S31700 / S31703, EN 1.4445 / 1.4438, AISI 317 / 317L, JIS SUS317 / SUS317L, GB S31708 / S31703 and Werkstoff X6CrNiMo19-13-4 / X2CrNiMo19-14-4. Quote the designation your specification uses and we will supply to it.
Markedly better pitting resistance than 316L, Good performance in sulphurous and acidic condensate and Retains full austenitic weldability and formability. It is non-magnetic, with excellent weldability and fair machinability, and is used in continuous service in air up to about 870 °C.
Longer lead times than 304 or 316, Still subject to chloride stress corrosion cracking and Cost approaches that of duplex, which often outperforms it. We state these plainly so the grade is chosen for the right service.
Our published range covers thickness 3 mm, 60 mm, width 10 mm, 300 mm, section Flat, Angle, Channel, Square and length 3 m, 6 m (Customised length per requirement). Standards include ASTM A276, ASTM A479 / ASME SA-479 and EN 10088-3. Finishes and conditions include Hot rolled, Cold drawn, Polished and Black.
flue gas desulphurisation, pulp and paper bleaching plant, chemical process equipment and condensers in acidic service. Typical industries: chemical, paper & pulp, power & energy and petrochemical. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Material is supplied with documentation, tested in house across 18 listed testing facilities, and covered by our ISO 9001:2015 quality management system. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
Customised length per requirement
Send the size, quantity and standard. We will confirm availability against stock and come back with price.
