Stainless Steel SUS436L-AW (As-welded deposit)
Heat-treated state
JIS SUS436L
Reference condition for welded tube and fabricated joints: Ti/Nb stabilization keeps the HAZ corrosion-resistant, but grain coarsening lowers toughness and ductility.
Values for the AW condition
Other SUS436L tempers and conditions
SUS436L is listed in 4 conditions; see the grade overview at SUS436L.
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 | — |
AWThis page 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 |
What is SUS436L-AW?
SUS436L-AW is SUS436L heat treated to AW — reference condition for welded tube and fabricated joints: Ti/Nb stabilization keeps the HAZ corrosion-resistant, but grain coarsening lowers toughness and ductility. SUS436L-AW has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 20% and the elastic modulus is 200 GPa (29 Msi). SUS436L-AW 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). Annealed is the default condition FabDigit quotes; AW is available on request or by drawing note.
Advantages
- Easy to machine — 54/100, better than 92% 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
- High service temperature — 850°C (1,562 °F), better than 80% of stainless steel grades
- Conducts heat well — 23 W/m·K (13.3 BTU/hr·ft·°F), better than 78% of stainless steel grades
Limitations
- Limited ductility — 20%, worse than 79% of stainless steel grades
SUS436L-AW properties
Typical room-temperature values for SUS436L-AW; 21 are specific to this condition. Other listed values are SUS436L reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
SUS436L-AW 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-AW has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 68% of stainless steel grades. Elongation at break is 20% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
SUS436L-AW 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-AW conducts electricity at 2.9 % IACS, better than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (65/100), better than 56% of stainless steel grades.
Sustainability4
Producing a kilogram of SUS436L-AW 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-AW's machinability is fair (54/100, better than 92% of stainless steel grades); weldability very good (72/100); formability fair (42/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with SUS436L-AW
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.
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.
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 | — |
SUS436L-AW — frequently asked
What is SUS436L-AW used for?
SUS436L-AW 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-AW?
SUS436L-AW has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 470 MPa (68.2 ksi) — weaker than 68% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is SUS436L-AW easy to machine?
Reasonably — machinability is rated fair (54/100, better than 92% 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-AW 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-AW?
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-AW 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-AW?
SUS436L-AW 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.
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. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.