Stainless Steel SUS317J1
JIS SUS317J1
SUS317J1 is a JIS austenitic stainless in the 317 family with molybdenum raised above standard 317 for higher pitting and crevice corrosion resistance.
Reference datasheet — SUS317J1 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the ANN condition
SUS317J1 tempers and conditions
SUS317J1 is supplied in 8 conditions, soft to hard. ANN is the default FabDigit quotes; the values on this page are for it.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot Rolled Annealed & Pickled plate | Thick plate for vessels, tube sheets and weldments; scale removed by pickling, dull matte surface. | 275 | 570 | 50 | 155 HB | 2 % IACS |
ANNDefault Annealed | Standard stocked condition for plate, pipe, bar and tube; maximum corrosion resistance and ductility. | 285 | 580 | 50 | 160 HB | — |
Cold Rolled Annealed, 2B finish | Standard cold-rolled sheet/coil finish for chemical equipment fabrication and deep drawing. | 295 | 590 | 48 | 165 HB | 2 % IACS |
Cold drawn | Round/hex bar for machined fittings and shafts; better tolerance and surface than hot-rolled bar with modest strength gain. | 480 | 700 | 30 | 17 HRC | 2 % IACS |
Quarter hard | Light cold work for springy sheet parts and clamps where some formability is still required. | 550 | 860 | 15 | 23 HRC | 2 % IACS |
Half hard | Medium temper for structural strip, springs and wear-resistant linings. | 760 | 1,030 | 10 | 32 HRC | 2 % IACS |
Three-quarter hard | High-strength strip for flat springs and shims with only simple bending needed. | 930 | 1,170 | 6 | 37 HRC | 2 % IACS |
Full hard | Maximum cold-worked strength for flat springs, blades and abrasion linings; essentially not formable. | 1,000 | 1,280 | 4 | 41 HRC | 2 % IACS |
Supply forms, finishes and certifications
Ways SUS317J1 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
AS-WELD | As Welded | Surface finish |
BA | Bright Annealed (BA) sheet/strip | Surface finish |
What is SUS317J1?
SUS317J1 is a JIS austenitic stainless in the 317 family with molybdenum raised above standard 317 for higher pitting and crevice corrosion resistance. It is specified for chemical and marine process equipment — tanks, liners and paper-mill hardware — and is available hot-rolled No.1, cold-rolled 2B and BA, cold drawn, in 1/4H to full-hard strip and as-welded tube. Annealed properties are 285 MPa yield, 580 MPa tensile, 50 % elongation and 160 HB, with service to 500 °C. Cost and lead time exceed 316L and non-Japanese stock is thin; 317L or a 6 % Mo austenitic are the usual alternatives. SUS317J1 has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,375°C (2,507 °F). SUS317J1 has a yield strength of 285 MPa (41.3 ksi) and a tensile strength of 580 MPa (84.1 ksi) — weaker than 74% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 195 GPa (28.3 Msi).
What is SUS317J1 used for?
- marine equipment
- chemical process tanks
- pulp and paper machinery
Advantages
- Ductile — tolerates forming and impact — 50%, better than 90% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
- Forms and bends easily — 75/100, better than 87% of stainless steel grades
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
- Good corrosion resistance — 78/100, better than 84% of stainless steel grades
Limitations
- Low electrical conductivity — 2 % IACS, worse than 77% of stainless steel grades
- High embodied carbon — 5.5 kg CO₂/kg, worse than 77% of stainless steel grades
SUS317J1 properties
Typical room-temperature values for SUS317J1-ANN; bars are the position among stainless steel grades.
Physical3
SUS317J1 has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,375°C (2,507 °F).
Mechanical15
SUS317J1 has a yield strength of 285 MPa (41.3 ksi) and a tensile strength of 580 MPa (84.1 ksi) — weaker than 74% of stainless steel grades. Elongation at break is 50% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
SUS317J1 is rated for continuous service to 500°C (932 °F). It conducts heat at 14 W/m·K (8.09 BTU/hr·ft·°F), worse than 80% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
SUS317J1 conducts electricity at 2 % IACS, worse than 77% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 84% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS317J1 takes about 58 MJ of energy and emits 5.5 kg of CO₂ — more than 66% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
SUS317J1's machinability is poor (30/100, worse than 70% of stainless steel grades); weldability very good (80/100); formability very good (75/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. SUS317J1 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with SUS317J1
Is SUS317J1 easy to machine?
Gummy and strongly work-hardening — use rigid setups, positive-rake sharp carbide, heavy positive feed to cut under the hardened layer, ~30–40 % of 1212 speeds and flood coolant.
Can SUS317J1 be welded?
Readily welded by GTAW/GMAW/SMAW with low heat input and no preheat; use overalloyed filler (ER317L, or 625/Alloy 22 for maximum pitting resistance) and back-purge, then pickle/passivate.
Can SUS317J1 be formed, bent or molded?
Excellent cold formability but high work-hardening and springback; needs ~50 % more press force than carbon steel, and heavily formed parts benefit from re-solution annealing at 1050–1150 °C with rapid quench.
SUS317J1 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| CJIS G4304 max 0.08 %; most mills supply ≤0.04 % | ≤ 0.08 | 0.04 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 2.5 | 1.3 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.03 | 0 |
| Ni | 15 – 17 | 16 |
| Cr | 16 – 19 | 17.5 |
| Mohigh Mo gives PREN ≈ 34–36 | 4 – 6 | 5 |
| Fe | balance |
What surface finishes work on SUS317J1?
Not anodizable — finish by pickling (HNO₃/HF), passivation to ASTM A967, mechanical polishing to mirror or electropolishing for chemical/hygienic surfaces.
Surface treatments FabDigit runs on stainless steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Passivation
Organic Coating
Thermal Spray
How much does SUS317J1 cost?
SUS317J1 is a premium-cost stainless steel ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
SUS317J1 — frequently asked
What is SUS317J1 used for?
SUS317J1 is typically used for marine equipment, chemical process tanks and pulp and paper machinery. In short: higher-Mo than 316L; JIS marine/chemical grade; limited stock, higher cost.
What is the yield strength of SUS317J1?
SUS317J1 has a typical yield strength of 285 MPa (41.3 ksi) and a tensile strength of 580 MPa (84.1 ksi) — weaker than 74% of stainless steel grades. Strength varies by condition: see the 8 listed tempers.
Is SUS317J1 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 70% of stainless steel grades). Gummy and strongly work-hardening — use rigid setups, positive-rake sharp carbide, heavy positive feed to cut under the hardened layer, ~30–40 % of 1212 speeds and flood coolant.
Can SUS317J1 be welded?
Yes — weldability is rated very good (80/100). Readily welded by GTAW/GMAW/SMAW with low heat input and no preheat; use overalloyed filler (ER317L, or 625/Alloy 22 for maximum pitting resistance) and back-purge, then pickle/passivate.
What surface finishes work on SUS317J1?
Not anodizable — finish by pickling (HNO₃/HF), passivation to ASTM A967, mechanical polishing to mirror or electropolishing for chemical/hygienic surfaces.
Can SUS317J1 be formed, bent or molded?
Excellent cold formability but high work-hardening and springback; needs ~50 % more press force than carbon steel, and heavily formed parts benefit from re-solution annealing at 1050–1150 °C with rapid quench.
What is the maximum service temperature of SUS317J1?
SUS317J1 is rated for continuous use to about 500°C (932 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between SUS317J1-ANN and SUS317J1-FH?
ANN is the default condition — standard stocked condition for plate, pipe, bar and tube; maximum corrosion resistance and ductility. FH: maximum cold-worked strength for flat springs, blades and abrasion linings; essentially not formable. Yield strength is 285 MPa in ANN versus 1,000 MPa in FH.
How much does SUS317J1 cost?
SUS317J1 is a premium-cost stainless steel ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- JIS G4304 — Hot-rolled stainless steel plate, sheet and strip — JSA (2021)
- JIS G4305 — Cold-rolled stainless steel plate, sheet and strip — JSA (2021)
- JIS G4303 — Stainless steel bars — JSA (2021)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- ASM Specialty Handbook — Stainless Steels — ASM International (1994)
- High-molybdenum austenitic stainless (317L/317LMN) data sheets — Outokumpu / Nippon Steel Stainless (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.