Stainless Steel SUS316J1
JIS SUS316J1
SUS316J1 is a JIS-specific 316-type austenitic stainless with a copper addition that lowers the work-hardening rate and improves resistance to mild acids.
Reference datasheet — SUS316J1 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 Annealed condition
SUS316J1 tempers and conditions
SUS316J1 is supplied in 7 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Hot rolled | Thick plate condition (>6 mm) for tanks and welded fabrications; same properties as annealed, rougher surface. | 245 | 540 | 52 | 155 HB | 2.3 % IACS |
AnnealedDefault solution treated (~1050–1100 °C, water quenched), pickled | Default stock condition for sheet, plate, bar and tube; maximum ductility for deep drawing and best corrosion resistance. | 250 | 550 | 55 | 150 HB | — |
Quarter hard | Light cold reduction when moderate stiffness/strength is needed while retaining some bending ability. | 410 | 690 | 25 | 22 HRC | 2.3 % IACS |
Cold drawn | Standard bar/wire condition giving better straightness, surface finish and chip control than annealed bar. | 480 | 700 | 25 | 18 HRC | 2.3 % IACS |
Half hard | Standard spring-ish strip temper for clips, bands and stiff formed parts with simple bends. | 570 | 850 | 12 | 30 HRC | 2.3 % IACS |
Three-quarter hard | High-strength strip for flat springs and shims where only very gentle forming is required. | 700 | 1,000 | 8 | 37 HRC | 2.3 % IACS |
Hardened | Maximum strength thin strip/wire for springs, blades and flat stock; essentially no formability beyond flat blanking. | 850 | 1,150 | 5 | 42 HRC | 2.3 % IACS |
What is SUS316J1?
SUS316J1 is a JIS-specific 316-type austenitic stainless with a copper addition that lowers the work-hardening rate and improves resistance to mild acids. It is used for deep-drawn and cold-headed sheet parts such as kitchenware, tableware and process linings, and is supplied annealed, as 2B or BA cold-rolled sheet, hot-rolled plate, cold-drawn bar and 1/4H to full-hard tempers. Annealed properties are close to 316 (250 MPa yield, 550 MPa tensile, 55 % elongation, 150 HB) with service to 800 °C, but stock outside Japan is limited and the copper raises weld hot-cracking sensitivity; 316L is the nearest widely available substitute. SUS316J1 has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,385°C (2,525 °F). SUS316J1 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 550 MPa (79.8 ksi) — weaker than 91% of stainless steel grades. Elongation at break is 55% and the elastic modulus is 193 GPa (28 Msi).
What is SUS316J1 used for?
- kitchen utensils
- tableware
- chemical equipment linings
- architectural fittings
Advantages
- Polishes to a fine finish — 86/100, better than 99% of stainless steel grades
- Forms and bends easily — 92/100, better than 98% of stainless steel grades
- Ductile — tolerates forming and impact — 55%, better than 97% of stainless steel grades
- Tough — resists crack growth — 220 MPa·√m (200.2 ksi·√in), better than 97% of stainless steel grades
- Good corrosion resistance — 74/100, better than 78% of stainless steel grades
Limitations
- Low strength — 250 MPa (36.3 ksi), worse than 91% of stainless steel grades
SUS316J1 properties
Typical room-temperature values for SUS316J1-Annealed; bars are the position among stainless steel grades.
Physical3
SUS316J1 has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,385°C (2,525 °F).
Mechanical16
SUS316J1 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 550 MPa (79.8 ksi) — weaker than 91% of stainless steel grades. Elongation at break is 55% and the elastic modulus is 193 GPa (28 Msi).
Thermal6
SUS316J1 is rated for continuous service to 800°C (1,472 °F). It conducts heat at 16.3 W/m·K (9.42 BTU/hr·ft·°F), better than 68% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
SUS316J1 conducts electricity at 2.3 % IACS, better than 55% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (74/100), better than 78% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS316J1 takes about 53 MJ of energy and emits 5 kg of CO₂ — less than 67% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
SUS316J1's machinability is poor (32/100, worse than 62% of stainless steel grades); weldability very good (78/100); formability excellent (92/100).
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. SUS316J1 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with SUS316J1
Is SUS316J1 easy to machine?
Gummy and work-hardening like 316: use rigid setups, sharp positive-rake carbide, heavy positive feed, 60–110 m/min with flood coolant, and never dwell or rub.
Can SUS316J1 be welded?
Weld with 316L/ER316L (or matching Cu-bearing filler for full corrosion match), low heat input and interpass <150 °C; the Cu addition raises hot-cracking sensitivity so keep a small amount of delta ferrite and avoid heavy restraint.
Can SUS316J1 be formed, bent or molded?
Excellent deep-drawing and cold-heading behaviour — lower work hardening than 304/316 allows deeper draws with fewer interstage anneals; use chlorine-free drawing lubricants and Cr-free tooling coatings to avoid galling.
SUS316J1 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 |
|---|---|---|
| CSUS316J1L variant limits C to 0.030 | ≤ 0.08 | 0.05 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 2 | 1.2 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.03 | 0.01 |
| Ni | 10 – 14 | 12 |
| Cr | 17 – 19 | 18 |
| Mo | 1.2 – 2.75 | 2 |
| Cuthe defining addition — lowers work hardening, improves drawability and resistance to reducing acids | 1 – 2.5 | 1.7 |
| Fe | balance |
What surface finishes work on SUS316J1?
Takes BA and No.8 mirror polish readily for tableware; passivate in nitric or citric acid after machining/welding, electropolish for hygiene service; not anodisable, PVD colouring works well.
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 SUS316J1 cost?
SUS316J1 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.
SUS316J1 — frequently asked
What is SUS316J1 used for?
SUS316J1 is typically used for kitchen utensils, tableware, chemical equipment linings and architectural fittings. In short: best-forming 316 variant; copper-bearing JIS grade; limited non-Japanese stock.
What is the yield strength of SUS316J1?
SUS316J1 has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 550 MPa (79.8 ksi) — weaker than 91% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is SUS316J1 easy to machine?
Not especially — machinability is rated poor (32/100, worse than 62% of stainless steel grades). Gummy and work-hardening like 316: use rigid setups, sharp positive-rake carbide, heavy positive feed, 60–110 m/min with flood coolant, and never dwell or rub.
Can SUS316J1 be welded?
Yes — weldability is rated very good (78/100). Weld with 316L/ER316L (or matching Cu-bearing filler for full corrosion match), low heat input and interpass <150 °C; the Cu addition raises hot-cracking sensitivity so keep a small amount of delta ferrite and avoid heavy restraint.
What surface finishes work on SUS316J1?
Takes BA and No.8 mirror polish readily for tableware; passivate in nitric or citric acid after machining/welding, electropolish for hygiene service; not anodisable, PVD colouring works well.
Can SUS316J1 be formed, bent or molded?
Excellent deep-drawing and cold-heading behaviour — lower work hardening than 304/316 allows deeper draws with fewer interstage anneals; use chlorine-free drawing lubricants and Cr-free tooling coatings to avoid galling.
What is the maximum service temperature of SUS316J1?
SUS316J1 is rated for continuous use to about 800°C (1,472 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between SUS316J1 Annealed and SUS316J1-H?
Annealed is the default condition — default stock condition for sheet, plate, bar and tube; maximum ductility for deep drawing and best corrosion resistance. H: maximum strength thin strip/wire for springs, blades and flat stock; essentially no formability beyond flat blanking. Yield strength is 250 MPa in Annealed versus 850 MPa in H.
How much does SUS316J1 cost?
SUS316J1 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 G 4305 — Cold-rolled stainless steel plate, sheet and strip — JSA (2021)
- JIS G 4303 — Stainless steel bars — JSA (2021)
- JIS G 4313 — Cold-rolled stainless steel strip for springs — JSA (2011)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Stainless steel sheet product guide (316-type / Cu-bearing grades) — 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.