Stainless Steel SUS836L
JIS SUS836L
SUS836L is a JIS high-molybdenum, low-carbon super-austenitic stainless comparable to 317LMN, with nitrogen and Mo additions that raise pitting resistance well above 316L.
Reference datasheet — SUS836L 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 SA condition
SUS836L tempers and conditions
SUS836L is supplied in 6 conditions, soft to hard. SA is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SADefault Solution annealed | Standard supply condition for plate, pipe and bar; maximum corrosion resistance and toughness. | 320 | 640 | 45 | 180 HB | 1.8 % IACS |
As-welded deposit | Reference condition for fabricated joints; use over-alloyed Ni-base filler (e.g. ERNiCrMo-3/-4) to keep weld Mo level and corrosion resistance. | 330 | 620 | 35 | 190 HB | 1.8 % IACS |
Cold drawn | Use for shafts, fasteners and machined fittings needing tighter tolerance and higher yield than annealed bar. | 520 | 760 | 30 | 20 HRC | 1.8 % IACS |
Quarter hard | Mild cold-rolled temper for stiffer thin sections that still need moderate bending ability. | 550 | 830 | 25 | 22 HRC | 1.8 % IACS |
Half hard | Higher-strength strip temper for springs, clamps and structural thin sheet in corrosive service. | 700 | 950 | 15 | 28 HRC | 1.8 % IACS |
Full hard | Maximum strength flat product for spring washers and shims; bending is essentially limited to flat-wise use. | 950 | 1,150 | 8 | 35 HRC | 1.8 % IACS |
Supply forms, finishes and certifications
Ways SUS836L is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
2B | Cold rolled, annealed, pickled, skin-passed sheet | Surface finish |
BA | Bright annealed strip/tube | Surface finish |
HRAP | Hot Rolled, Annealed & Pickled | Surface finish |
What is SUS836L?
SUS836L is a JIS high-molybdenum, low-carbon super-austenitic stainless comparable to 317LMN, with nitrogen and Mo additions that raise pitting resistance well above 316L. Engineers specify it for chloride-bearing process streams; it is stocked as hot-rolled annealed plate, 2B and BA sheet, cold-drawn bar and cold-worked tempers to full hard. Trade-offs are low machinability (score 25), Ni-Mo alloy cost and a listed maximum service temperature of 400 °C. Default annealed properties are 320 MPa yield, 640 MPa tensile and 45 % elongation; SUS890L (904L type) is the nearest step up for strong acids. SUS836L has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,320°C (2,408 °F). SUS836L has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 640 MPa (92.8 ksi) — weaker than 60% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 195 GPa (28.3 Msi).
What is SUS836L used for?
- seawater systems
- chemical process piping
- flue gas desulfurization units
Advantages
- Good corrosion resistance — 88/100, better than 97% 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
- Ductile — tolerates forming and impact — 45%, better than 76% of stainless steel grades
Limitations
- Poor heat conductor — 12 W/m·K (6.93 BTU/hr·ft·°F), worse than 93% of stainless steel grades
- Difficult to machine — 25/100, worse than 88% of stainless steel grades
- Low electrical conductivity — 1.8 % IACS, worse than 87% of stainless steel grades
- High embodied carbon — 5.6 kg CO₂/kg, worse than 83% of stainless steel grades
- Limited service temperature — 400°C (752 °F), worse than 78% of stainless steel grades
SUS836L properties
Typical room-temperature values for SUS836L-SA; bars are the position among stainless steel grades.
Physical3
SUS836L has a density of 8 g/cm³ (0.289 lb/in³), heavier than 92% of stainless steel grades. It melts at 1,320°C (2,408 °F).
Mechanical16
SUS836L has a yield strength of 320 MPa (46.4 ksi) and a tensile strength of 640 MPa (92.8 ksi) — weaker than 60% of stainless steel grades. Elongation at break is 45% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
SUS836L is rated for continuous service to 400°C (752 °F). It conducts heat at 12 W/m·K (6.93 BTU/hr·ft·°F), worse than 93% of stainless steel grades. Thermal expansion is 15.5 µm/m·K (8.61 µin/in·°F).
Electrical3
SUS836L conducts electricity at 1.8 % IACS, worse than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is excellent (88/100), better than 97% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS836L takes about 75 MJ of energy and emits 5.6 kg of CO₂ — more than 84% of stainless steel grades. Typical recycled content is 40%.
Manufacturability7
SUS836L's machinability is poor (25/100, worse than 88% of stainless steel grades); weldability very good (70/100); formability good (65/100).
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. SUS836L is highlighted; hover a dot for its name, or open the interactive family chart.
Working with SUS836L
Is SUS836L easy to machine?
Work-hardens rapidly — use rigid setups, positive-rake carbide, heavy feeds, low-to-moderate speed (~30–60 m/min) and flood coolant; never dwell in the cut.
Can SUS836L be welded?
GTAW/GMAW with over-alloyed Ni-base filler (ERNiCrMo-3 or -4) to compensate Mo segregation; low heat input, interpass < 100 °C, no preheat, no PWHT normally required.
Can SUS836L be formed, bent or molded?
Cold forms well but needs ~50 % higher press loads than 304; allow generous bend radii and intermediate solution anneal for severe draws.
SUS836L 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 |
|---|---|---|
| Clow carbon, L grade | ≤ 0.03 | 0.02 |
| Si | ≤ 1 | 0.5 |
| Mn | ≤ 2 | 1 |
| P | ≤ 0.04 | |
| S | ≤ 0.03 | |
| Ni | 24 – 26 | 25 |
| Cr | 19 – 24 | 21 |
| Moprime driver of pitting resistance | 5 – 7 | 6 |
| Nnitrogen added in most commercial heats; check order spec | ≤ 0.25 | 0.18 |
| Cuoptional in some producer variants | ≤ 1.5 | |
| Fe | balance |
What surface finishes work on SUS836L?
Pickle in HNO₃-HF and passivate after hot work or welding to restore the passive film; electropolishing gives best crevice-corrosion performance; not anodizable.
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 SUS836L cost?
SUS836L is a high-cost stainless steel ($$$$), pricier than about 78% 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.
SUS836L — frequently asked
What is SUS836L used for?
SUS836L is typically used for seawater systems, chemical process piping and flue gas desulfurization units. In short: high-Mo super-austenitic; chloride pitting resistant; low machinability, high cost.
What is the yield strength of SUS836L?
SUS836L has a typical yield strength of 320 MPa (46.4 ksi) and a tensile strength of 640 MPa (92.8 ksi) — weaker than 60% of stainless steel grades. Strength varies by condition: see the 6 listed tempers.
Is SUS836L easy to machine?
Not especially — machinability is rated poor (25/100, worse than 88% of stainless steel grades). Work-hardens rapidly — use rigid setups, positive-rake carbide, heavy feeds, low-to-moderate speed (~30–60 m/min) and flood coolant; never dwell in the cut.
Can SUS836L be welded?
Yes — weldability is rated very good (70/100). GTAW/GMAW with over-alloyed Ni-base filler (ERNiCrMo-3 or -4) to compensate Mo segregation; low heat input, interpass < 100 °C, no preheat, no PWHT normally required.
What surface finishes work on SUS836L?
Pickle in HNO₃-HF and passivate after hot work or welding to restore the passive film; electropolishing gives best crevice-corrosion performance; not anodizable.
Can SUS836L be formed, bent or molded?
Cold forms well but needs ~50 % higher press loads than 304; allow generous bend radii and intermediate solution anneal for severe draws.
What is the maximum service temperature of SUS836L?
SUS836L is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between SUS836L-SA and SUS836L-FH?
SA is the default condition — standard supply condition for plate, pipe and bar; maximum corrosion resistance and toughness. FH: maximum strength flat product for spring washers and shims; bending is essentially limited to flat-wise use. Yield strength is 320 MPa in SA versus 950 MPa in FH.
How much does SUS836L cost?
SUS836L is a high-cost stainless steel ($$$$), pricier than about 78% 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 / G4305 — Hot- and cold-rolled stainless steel plate, sheet and strip — JSA (2021)
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip — ASTM (2022)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- High-molybdenum austenitic stainless (6Mo) grade datasheets — Outokumpu / Sandvik (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.