SS 317L.
SS 317L raises molybdenum to 3 to 4% and nickel to 11 to 15%, giving noticeably better pitting resistance than 316L.
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Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request.
Quick details
| Material grade | SS 317L (UNS S31703) |
|---|---|
| Forms | Pipes, Tubes, Sheets & plates, Round bars, Butt-weld fittings, Flanges |
| Usage / application | Flue-gas desulphurisation systems, Pulp and paper bleach plants, Condensers using brackish water |
| Test certificate | Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request. |
| Business type | Stockist and supplier |
| Location | 231/235, Sant Sena Maharaja Marg, Mumbai, Maharashtra 400004, India |
Also searched as: SS 317L, stainless steel 317L, 317L, UNS S31703, W.Nr 1.4438, X2CrNiMo18-15-4
Product information for purchasing teams
SS 317L raises molybdenum to 3 to 4% and nickel to 11 to 15%, giving noticeably better pitting resistance than 316L. It is used where 316L is marginal, such as flue-gas desulphurisation, pulp bleach plants and some acid services.
Exact specification, availability and commercial details are confirmed against your enquiry.
Product forms and standards
| Form | Standard |
|---|---|
| Pipes | ASTM A312 / ASME SA312 TP317L |
| Tubes | ASTM A213 TP317L |
| Sheets & plates | ASTM A240 / ASME SA240 Type 317L |
| Round bars | ASTM A276 Type 317L |
| Butt-weld fittings | ASTM A403 WP317L |
| Flanges | ASTM A182 F317L |
Related designation references
| Grade | UNS | Werkstoff Nr. | EN / BS | JIS |
|---|---|---|---|---|
| SS 317L | S31703 | 1.4438 | X2CrNiMo18-15-4 | SUS 317L |
Cross-standard references are not automatic substitutes. Confirm the exact product form, specification, composition, class and condition before accepting a substitution.
Chemical composition, %
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 317L | ≤ 0.030 | ≤ 2.00 | ≤ 0.75 | ≤ 0.045 | ≤ 0.030 | 18.0 – 20.0 | 11.0 – 15.0 | 3.0 – 4.0 | ≤ 0.10 |
Mechanical properties
| Property | Value |
|---|---|
| Tensile strength | ≥ 515 MPa |
| Yield strength (0.2%) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
Values per ASTM A240, annealed. Confirm against the current edition of the standard and your purchase specification.
Density: 7.98 g/cm³
Applications
- Flue-gas desulphurisation systems
- Pulp and paper bleach plants
- Condensers using brackish water
- Dye and textile chemical handling
Questions buyers ask
What are the equivalent grades of SS 317L?
SS 317L is UNS S31703, Werkstoff 1.4438, EN X2CrNiMo18-15-4 and JIS SUS 317L. Cross-standard references are not automatic substitutes; verify the product form, standard, composition and condition.
In which forms is SS 317L available?
Pipes to ASTM A312 / ASME SA312 TP317L; Tubes to ASTM A213 TP317L; Sheets & plates to ASTM A240 / ASME SA240 Type 317L; Round bars to ASTM A276 Type 317L; Butt-weld fittings to ASTM A403 WP317L; Flanges to ASTM A182 F317L.
What is the density of SS 317L?
About 7.98 g/cm³ (7,980 kg/m³).
Where is Steel Impex India located?
Steel Impex India is at 231/235, Sant Sena Maharaja Marg, Mumbai, Maharashtra 400004, India We supply across India.