Stainless Steel SUS836L-FH (Full hard)
Supply condition
JIS SUS836L
Maximum strength flat product for spring washers and shims; bending is essentially limited to flat-wise use.
Values for the FH condition
Other SUS836L tempers and conditions
SUS836L is listed in 6 conditions; see the grade overview at SUS836L.
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 |
FHThis page 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 |
What is SUS836L-FH?
SUS836L-FH is SUS836L supplied in the FH condition — maximum strength flat product for spring washers and shims; bending is essentially limited to flat-wise use. SUS836L-FH has a yield strength of 950 MPa (138 ksi) and a tensile strength of 1,150 MPa (167 ksi) — stronger than 98% of stainless steel grades. Elongation at break is 8% and the elastic modulus is 195 GPa (28.3 Msi). SUS836L-FH 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). SA is the default condition FabDigit quotes; FH is available on request or by drawing note.
Advantages
- High strength — 950 MPa (138 ksi), better than 98% of stainless steel grades
- Good corrosion resistance — 84/100, better than 91% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
Limitations
- Limited ductility — 8%, worse than 99% of stainless steel grades
- Limited service temperature — 250°C (482 °F), worse than 99% of stainless steel grades
- Difficult to machine — 22/100, worse than 95% of stainless steel grades
- Poor heat conductor — 12 W/m·K (6.93 BTU/hr·ft·°F), worse than 93% of stainless steel grades
- Low electrical conductivity — 1.8 % IACS, worse than 87% of stainless steel grades
SUS836L-FH properties
Typical room-temperature values for SUS836L-FH; 23 are specific to this condition. Other listed values are SUS836L reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
SUS836L-FH 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-FH has a yield strength of 950 MPa (138 ksi) and a tensile strength of 1,150 MPa (167 ksi) — stronger than 98% of stainless steel grades. Elongation at break is 8% and the elastic modulus is 195 GPa (28.3 Msi).
Thermal6
SUS836L-FH is rated for continuous service to 250°C (482 °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-FH conducts electricity at 1.8 % IACS, worse than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (84/100), better than 91% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS836L-FH 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-FH's machinability is poor (22/100, worse than 95% of stainless steel grades); weldability good (55/100); formability poor (20/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with SUS836L-FH
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.
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.
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 | — |
SUS836L-FH — frequently asked
What is SUS836L-FH used for?
SUS836L-FH 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-FH?
SUS836L-FH has a typical yield strength of 950 MPa (138 ksi) and a tensile strength of 1,150 MPa (167 ksi) — stronger than 98% of stainless steel grades. Strength varies by condition: see the 6 listed tempers.
Is SUS836L-FH easy to machine?
Not especially — machinability is rated poor (22/100, worse than 95% 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-FH be welded?
Yes — weldability is rated good (55/100). 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-FH?
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-FH 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-FH?
SUS836L-FH is rated for continuous use to about 250°C (482 °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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.