Stainless Steel SUS436L
JIS SUS436L
SUS436L is a Japanese low-carbon, Ti/Nb-stabilized 18Cr-1Mo ferritic stainless whose stabilization suppresses sensitization and gives better weldability and formability than standard 436.
Reference datasheet — SUS436L 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
SUS436L tempers and conditions
SUS436L is supplied in 4 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault cold rolled, annealed and pickled (2B / 2D finish) | Standard stocked condition for cold-rolled sheet/coil and welded tube: maximum ductility for deep drawing, roll forming and welding. | 300 | 480 | 30 | 155 HB | — |
As-welded deposit | Reference condition for welded tube and fabricated joints: Ti/Nb stabilization keeps the HAZ corrosion-resistant, but grain coarsening lowers toughness and ductility. | 300 | 470 | 20 | 165 HB | 2.9 % IACS |
Quarter hard | Light cold reduction for extra stiffness and flatness in flat panels or spring-back-critical roll-formed sections; ductility reduced. | 450 | 550 | 14 | 11 HRC | 2.9 % IACS |
Half hard | Occasional strip/spring-clip condition where higher yield is required and only mild bending is performed. | 540 | 620 | 8 | 20 HRC | 2.9 % IACS |
Supply forms, finishes and certifications
Ways SUS436L is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BA | Bright annealed | Surface finish |
No.1 | Hot rolled, annealed and pickled plate/strip | Surface finish |
No.4 | Annealed then abrasive-belt polished | Surface finish |
What is SUS436L?
SUS436L is a Japanese low-carbon, Ti/Nb-stabilized 18Cr-1Mo ferritic stainless whose stabilization suppresses sensitization and gives better weldability and formability than standard 436. It is chosen for chloride and exhaust-gas corrosion resistance at lower cost and without nickel compared with austenitic grades, and is supplied mainly as 2B, BA, No.1 and No.4 cold-rolled sheet and coil, plus 1/4H and 1/2H tempers and as-welded tube. Annealed properties are about 300 MPa yield, 480 MPa tensile, 30 % elongation and 155 HB (80 HRB). Service is limited to roughly 850 °C, machinability (55) and ferritic toughness in thick sections trail 304, and 444 or 316L are the step up where more pitting resistance is needed. SUS436L has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,425°C (2,597 °F). SUS436L has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
What is SUS436L used for?
- automotive exhaust systems
- kitchen sinks
- home appliance trim
- architectural panels
Advantages
- Easy to machine — 55/100, better than 94% of stainless steel grades
- Low embodied carbon — 3.5 kg CO₂/kg, better than 88% of stainless steel grades
- High electrical conductivity — 2.9 % IACS, better than 87% of stainless steel grades
- Forms and bends easily — 72/100, better than 84% of stainless steel grades
- High service temperature — 850°C (1,562 °F), better than 80% of stainless steel grades
SUS436L properties
Typical room-temperature values for SUS436L-Annealed; bars are the position among stainless steel grades.
Physical3
SUS436L has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,425°C (2,597 °F).
Mechanical15
SUS436L has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 30% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
SUS436L is rated for continuous service to 850°C (1,562 °F). It conducts heat at 23 W/m·K (13.3 BTU/hr·ft·°F), better than 78% of stainless steel grades. Thermal expansion is 10.4 µm/m·K (5.78 µin/in·°F).
Electrical3
SUS436L conducts electricity at 2.9 % IACS, better than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (68/100), better than 63% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS436L takes about 45 MJ of energy and emits 3.5 kg of CO₂ — less than 91% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
SUS436L's machinability is good (55/100, better than 94% of stainless steel grades); weldability very good (72/100); formability very good (72/100).
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. SUS436L is highlighted; hover a dot for its name, or open the interactive family chart.
Working with SUS436L
Is SUS436L easy to machine?
Cuts more freely than 304 (low work hardening) but is gummy — use sharp positive-rake tools, rigid setups, moderate speeds and generous flood coolant; avoid dwelling to prevent smearing.
Can SUS436L be welded?
Excellent for a ferritic: GTAW/laser/resistance welding with no filler or with 316L/309L filler; keep heat input and interpass temperature low to limit HAZ grain coarsening, use Ar (no N2) shielding, no post-weld anneal needed on thin gauge.
Can SUS436L be formed, bent or molded?
Deep-drawing sheet with high r-value and low ridging/roping tendency; springback lower than austenitics, but limit stretch-forming severity and radii below 1t in the transverse direction.
SUS436L 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 | ≤ 0.03 | 0.02 |
| Si | ≤ 1 | 0.4 |
| Mn | ≤ 1 | 0.4 |
| P | ≤ 0.04 | 0.03 |
| S | ≤ 0.03 | 0.01 |
| Niresidual | ≤ 0.6 | 0.2 |
| Cr | 16 – 19 | 17.5 |
| Mopitting resistance | 0.75 – 1.5 | 1.1 |
| N | ≤ 0.03 | 0.02 |
| Ti+Nb+Zrstabilizer, single or combined; mills typically use Nb or Ti+Nb at ≥8×(C+N) | 0.2 – 1 | 0.4 |
| Fe | balance |
What surface finishes work on SUS436L?
Passivate or pickle after forming/welding to restore the Cr-Mo oxide; takes BA, No.4, hairline and electropolished finishes and accepts PVD/paint — never anodize.
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
Equivalent designations
Standards and trade names that resolve to Stainless Steel SUS436L in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Other
- 436
- Similar grades
- 436L
How much does SUS436L cost?
SUS436L is a standard-cost stainless steel ($$), cheaper than about 71% 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.
SUS436L — frequently asked
What is SUS436L used for?
SUS436L is typically used for automotive exhaust systems, kitchen sinks, home appliance trim and architectural panels. In short: mo-bearing exhaust ferritic; weldable without post-anneal; nickel-free 304 alternative.
What is the yield strength of SUS436L?
SUS436L has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 480 MPa (69.6 ksi) — weaker than 68% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is SUS436L easy to machine?
Reasonably — machinability is rated good (55/100, better than 94% of stainless steel grades). Cuts more freely than 304 (low work hardening) but is gummy — use sharp positive-rake tools, rigid setups, moderate speeds and generous flood coolant; avoid dwelling to prevent smearing.
Can SUS436L be welded?
Yes — weldability is rated very good (72/100). Excellent for a ferritic: GTAW/laser/resistance welding with no filler or with 316L/309L filler; keep heat input and interpass temperature low to limit HAZ grain coarsening, use Ar (no N2) shielding, no post-weld anneal needed on thin gauge.
What surface finishes work on SUS436L?
Passivate or pickle after forming/welding to restore the Cr-Mo oxide; takes BA, No.4, hairline and electropolished finishes and accepts PVD/paint — never anodize.
Can SUS436L be formed, bent or molded?
Deep-drawing sheet with high r-value and low ridging/roping tendency; springback lower than austenitics, but limit stretch-forming severity and radii below 1t in the transverse direction.
What is the maximum service temperature of SUS436L?
SUS436L is rated for continuous use to about 850°C (1,562 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between SUS436L Annealed and SUS436L-AW?
Annealed is the default condition — standard stocked condition for cold-rolled sheet/coil and welded tube: maximum ductility for deep drawing, roll forming and welding. AW: reference condition for welded tube and fabricated joints: Ti/Nb stabilization keeps the HAZ corrosion-resistant, but grain coarsening lowers toughness and ductility. Yield strength is 300 MPa in Annealed versus 300 MPa in AW.
How much does SUS436L cost?
SUS436L is a standard-cost stainless steel ($$), cheaper than about 71% 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 4304 — Hot-rolled stainless steel plate, sheet and strip — JSA (2021)
- GB/T 3280 — Cold rolled stainless steel plate, sheet and strip (00Cr17Mo/S11863 equivalents) — SAC (2015)
- Mo-bearing stabilized ferritic stainless (436L/439) sheet data — JFE Steel / Nippon Steel Stainless (2022)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.