Stainless Steel SUS316J1L
JIS SUS316J1L
SUS316J1L is the low-carbon version of the copper-bearing JIS 316J1 austenitic stainless, with carbon reduced to limit sensitisation in the weld heat-affected zone.
Reference datasheet — SUS316J1L 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
SUS316J1L tempers and conditions
SUS316J1L 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 | Use hot-rolled plate and large-section bar, subsequently solution treated and pickled, when annealed-equivalent properties and a No.1 / pickled surface are acceptable. | 245 | 540 | 52 | 155 HB | 2.3 % IACS |
AnnealedDefault solution annealed ( , 1010–1150 °C ) | Default stock condition after solution annealing at 1010–1150 °C and water quench: best corrosion resistance and formability for welded vessels, deep drawing and cold-heading blanks. | 250 | 545 | 55 | 150 HB | — |
Quarter hard | Choose lightly cold-rolled strip when more strength and stiffness than annealed material is needed while keeping 30 % elongation for moderate forming. | 350 | 620 | 30 | 17 HRC | 2.3 % IACS |
Cold drawn | Pick cold drawn bar and wire for close dimensional tolerance and good surface with moderately higher strength (450 MPa yield), suited to machined parts and fastener blanks. | 450 | 650 | 30 | 15 HRC | 2.3 % IACS |
Half hard | Use half-hard cold-rolled strip for structural and elastic parts needing 520 MPa yield but only simple bends, since elongation drops to 18 %. | 520 | 780 | 18 | 24 HRC | 2.3 % IACS |
Three-quarter hard | Pick this heavily work-hardened strip for high-strength thin parts such as spring washers and clamps at 680 MPa yield, with forming limited by 12 % elongation. | 680 | 900 | 12 | 30 HRC | 2.3 % IACS |
Hardened | Choose full-hard cold-rolled strip for spring contacts and blade-like thin parts at 1000 MPa tensile; at 8 % elongation there is almost no forming margin left. | 830 | 1,000 | 8 | 34 HRC | 2.3 % IACS |
What is SUS316J1L?
SUS316J1L is the low-carbon version of the copper-bearing JIS 316J1 austenitic stainless, with carbon reduced to limit sensitisation in the weld heat-affected zone. It is chosen for welded corrosion-resistant equipment that also has to be deep drawn or cold headed: annealed material gives 250 MPa yield, 545 MPa tensile, 55 % elongation and 150 HB, with a formability score of 92 and slightly better corrosion resistance than 316J1. Supply is mainly Japanese sheet, plate and bar in annealed, cold-drawn and 1/4H to full-hard conditions; 316L (1.4404) is the nearest globally stocked equivalent. SUS316J1L 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). SUS316J1L has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 545 MPa (79 ksi) — weaker than 91% of stainless steel grades. Elongation at break is 55% and the elastic modulus is 193 GPa (28 Msi).
What is SUS316J1L used for?
- welded chemical tanks
- food processing equipment
- kitchenware
- architectural panels
Advantages
- 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
- Readily welded — 88/100, better than 91% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
Limitations
- Low strength — 250 MPa (36.3 ksi), worse than 91% of stainless steel grades
- High embodied carbon — 5.5 kg CO₂/kg, worse than 77% of stainless steel grades
SUS316J1L properties
Typical room-temperature values for SUS316J1L-Annealed; bars are the position among stainless steel grades.
Physical3
SUS316J1L 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).
Mechanical16
SUS316J1L has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 545 MPa (79 ksi) — weaker than 91% of stainless steel grades. Elongation at break is 55% and the elastic modulus is 193 GPa (28 Msi).
Thermal6
SUS316J1L is rated for continuous service to 500°C (932 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
SUS316J1L conducts electricity at 2.3 % IACS, better than 55% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (76/100), better than 80% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS316J1L takes about 55 MJ of energy and emits 5.5 kg of CO₂ — more than 50% of stainless steel grades. Typical recycled content is 65%.
Manufacturability8
SUS316J1L's machinability is fair (35/100, better than 51% of stainless steel grades); weldability excellent (88/100); 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. SUS316J1L is highlighted; hover a dot for its name, or open the interactive family chart.
Working with SUS316J1L
Is SUS316J1L easy to machine?
Work-hardens strongly and chips smear on the cutting edge: use sharp high positive-rake tooling, rigid clamping, lower cutting speed with heavy feed and generous coolant, and avoid air-cutting passes that leave a hardened skin.
Can SUS316J1L be welded?
The extra-low carbon means no post-weld solution treatment is needed after GTAW, GMAW or resistance welding; use ER316L filler, or a matching Cu-bearing wire where full corrosion match is required, control interpass temperature and pickle/passivate after welding.
Can SUS316J1L be formed, bent or molded?
The copper addition lowers the work-hardening rate, so cold heading, deep drawing and spinning are better than plain 316L; use an interstage anneal on severely drawn parts to restore ductility.
SUS316J1L 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 |
|---|---|---|
| Cultra-low carbon, suppresses sensitization | ≤ 0.03 | 0.02 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 2 | 1.2 |
| P | ≤ 0.05 | 0.03 |
| S | ≤ 0.03 | 0.01 |
| Ni | 12 – 16 | 13 |
| Cr | 17 – 19 | 18 |
| Mo | 1.2 – 2.75 | 2 |
| Cuimproves cold workability and sulfuric acid resistance | 1 – 2.5 | 1.8 |
| Fe | balance |
What surface finishes work on SUS316J1L?
Available as 2B, BA, No.4 brushed or No.8 mirror polish; nitric-acid pickling and passivation or electropolishing restores best corrosion resistance. Not anodisable.
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 SUS316J1L cost?
SUS316J1L 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.
SUS316J1L — frequently asked
What is SUS316J1L used for?
SUS316J1L is typically used for welded chemical tanks, food processing equipment, kitchenware and architectural panels. In short: weldable copper-bearing 316; no post-weld solution anneal; top-tier deep-draw formability.
What is the yield strength of SUS316J1L?
SUS316J1L has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 545 MPa (79 ksi) — weaker than 91% of stainless steel grades. Strength varies by condition: see the 7 listed tempers.
Is SUS316J1L easy to machine?
Not especially — machinability is rated fair (35/100, better than 51% of stainless steel grades). Work-hardens strongly and chips smear on the cutting edge: use sharp high positive-rake tooling, rigid clamping, lower cutting speed with heavy feed and generous coolant, and avoid air-cutting passes that leave a hardened skin.
Can SUS316J1L be welded?
Yes — weldability is rated excellent (88/100). The extra-low carbon means no post-weld solution treatment is needed after GTAW, GMAW or resistance welding; use ER316L filler, or a matching Cu-bearing wire where full corrosion match is required, control interpass temperature and pickle/passivate after welding.
What surface finishes work on SUS316J1L?
Available as 2B, BA, No.4 brushed or No.8 mirror polish; nitric-acid pickling and passivation or electropolishing restores best corrosion resistance. Not anodisable.
Can SUS316J1L be formed, bent or molded?
The copper addition lowers the work-hardening rate, so cold heading, deep drawing and spinning are better than plain 316L; use an interstage anneal on severely drawn parts to restore ductility.
What is the maximum service temperature of SUS316J1L?
SUS316J1L 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 SUS316J1L Annealed and SUS316J1L-H?
Annealed is the default condition — default stock condition after solution annealing at 1010–1150 °C and water quench: best corrosion resistance and formability for welded vessels, deep drawing and cold-heading blanks. H: choose full-hard cold-rolled strip for spring contacts and blade-like thin parts at 1000 MPa tensile; at 8 % elongation there is almost no forming margin left. Yield strength is 250 MPa in Annealed versus 830 MPa in H.
How much does SUS316J1L cost?
SUS316J1L 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
- ASM Handbook Vol.1: Properties and Selection — Irons, Steels, and High-Performance Alloys — ASM International (1990)
- Machinery's Handbook, 31st ed. — Industrial Press (2020)
- worldstainless LCI data for austenitic stainless steel — worldstainless (2023)
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.