Stainless Steel 436 Cold Drawn
Supply condition
AISI/SAE 436 · UNS S43600 · EN 1.4526, X6CrMoNb17-1 · JIS SUS436, SUS436L
Choose for machined bar parts and fasteners where straightness, tolerance and higher yield matter.
Values for the Cold Drawn condition
Other 436 tempers and conditions
436 is listed in 4 conditions; see the grade overview at 436.
- Annealed
- Temper Rolled 1/4 Hard
- Cold Drawn
- 1/2 Hard
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault bright/box annealed, softest condition (2B, BA, 2D sheet; annealed bar) | Default stocked condition for deep-drawn trim, panels and formed parts needing maximum ductility. | 365 | 530 | 30 | 175 HB | — |
1/4 Hard | Pick when flatness and modest springback stiffness are wanted with some remaining bendability. | 480 | 620 | 15 | 13 HRC | 2.9 % IACS |
Cold DrawnThis page cold-drawn/cold-finished bar and wire | Choose for machined bar parts and fasteners where straightness, tolerance and higher yield matter. | 550 | 655 | 14 | 16 HRC | 2.9 % IACS |
Half hard | For flat springs, clips and stiff panels formed only by simple bends. | 585 | 725 | 8 | 22 HRC | 2.9 % IACS |
What is 436 Cold Drawn?
436 Cold Drawn is 436 supplied in the Cold Drawn condition — choose for machined bar parts and fasteners where straightness, tolerance and higher yield matter. 436 Cold Drawn has a yield strength of 550 MPa (79.8 ksi) and a tensile strength of 655 MPa (95 ksi) — stronger than 83% of stainless steel grades. Elongation at break is 14% and the elastic modulus is 200 GPa (29 Msi). 436 Cold Drawn 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; Cold Drawn is available on request or by drawing note.
Advantages
- Easy to machine — 62/100, better than 98% of stainless steel grades
- High strength — 550 MPa (79.8 ksi), better than 83% of stainless steel grades
- Low embodied carbon — 3.6 kg CO₂/kg, better than 83% of stainless steel grades
- Conducts heat well — 23.9 W/m·K (13.8 BTU/hr·ft·°F), better than 79% of stainless steel grades
Limitations
- Limited ductility — 14%, worse than 91% of stainless steel grades
- Needs corrosion protection — 47/100, worse than 81% of stainless steel grades
436 Cold Drawn properties
Typical room-temperature values for 436 Cold Drawn; 22 are specific to this condition. Other listed values are 436 reference data and may not represent this condition. Bars are the position among stainless steel grades.
Physical3
436 Cold Drawn 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).
Mechanical14
436 Cold Drawn has a yield strength of 550 MPa (79.8 ksi) and a tensile strength of 655 MPa (95 ksi) — stronger than 83% of stainless steel grades. Elongation at break is 14% and the elastic modulus is 200 GPa (29 Msi).
Thermal5
436 Cold Drawn is rated for continuous service to 425°C (797 °F). It conducts heat at 23.9 W/m·K (13.8 BTU/hr·ft·°F), better than 79% of stainless steel grades. Thermal expansion is 10.4 µm/m·K (5.78 µin/in·°F).
Electrical2
436 Cold Drawn has an electrical resistivity of 6×10⁻⁷ Ω·m.
Chemical & Environmental2
Corrosion resistance is fair (47/100), worse than 81% of stainless steel grades.
Sustainability4
Producing a kilogram of 436 Cold Drawn takes about 48 MJ of energy and emits 3.6 kg of CO₂ — less than 85% of stainless steel grades. Typical recycled content is 60%.
Manufacturability7
436 Cold Drawn's machinability is good (62/100, better than 98% of stainless steel grades); weldability good (62/100); formability fair (45/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 436 Cold Drawn
Is 436 easy to machine?
Machines like 430/434 — gummy, work-hardens lightly; use sharp positive-rake carbide, rigid setup, generous coolant and ~55% of 1212 speeds.
Can 436 be welded?
Nb stabilisation limits sensitisation, so GTAW/GMAW/resistance welding of thin gauge is practical; keep heat input low to avoid HAZ grain coarsening and use 430Nb/309L filler when strength/ductility is critical.
Can 436 be formed, bent or molded?
Very good deep-drawability with low ridging/roping thanks to Nb; springback higher and stretch-formability lower than austenitic 304, so allow larger bend radii.
What surface finishes work on 436?
Takes a bright polish for automotive trim (BA finish common); passivate or electropolish after machining/welding, never anodise.
436 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 |
|---|---|---|
| C | ≤ 0.12 | 0.05 |
| Mn | ≤ 1 | 0.5 |
| Si | ≤ 1 | 0.5 |
| P | ≤ 0.04 | 0.03 |
| S | ≤ 0.03 | 0.01 |
| Cr | 16 – 18 | 17 |
| Mo | 0.75 – 1.25 | 1 |
| Nb+Tastabilising addition, typically ≥5×C | ≤ 0.75 | 0.45 |
| Niresidual, where specified | ≤ 0.75 | 0.3 |
| Fe | balance | — |
436 Cold Drawn — frequently asked
What is 436 Cold Drawn used for?
436 Cold Drawn is typically used for automotive exhaust systems and mufflers, bright trim mouldings, appliance panels and drums, heat exchanger and hot-water components, deep-drawn cookware and catering parts and roofing and architectural sheet. In short: bright-trim ferritic stainless.
What is the yield strength of 436 Cold Drawn?
436 Cold Drawn has a typical yield strength of 550 MPa (79.8 ksi) and a tensile strength of 655 MPa (95 ksi) — stronger than 83% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is 436 Cold Drawn easy to machine?
Reasonably — machinability is rated good (62/100, better than 98% of stainless steel grades). Machines like 430/434 — gummy, work-hardens lightly; use sharp positive-rake carbide, rigid setup, generous coolant and ~55% of 1212 speeds.
Can 436 Cold Drawn be welded?
Yes — weldability is rated good (62/100). Nb stabilisation limits sensitisation, so GTAW/GMAW/resistance welding of thin gauge is practical; keep heat input low to avoid HAZ grain coarsening and use 430Nb/309L filler when strength/ductility is critical.
What surface finishes work on 436 Cold Drawn?
Takes a bright polish for automotive trim (BA finish common); passivate or electropolish after machining/welding, never anodise.
Can 436 Cold Drawn be formed, bent or molded?
Very good deep-drawability with low ridging/roping thanks to Nb; springback higher and stretch-formability lower than austenitic 304, so allow larger bend radii.
What is the maximum service temperature of 436 Cold Drawn?
436 Cold Drawn is rated for continuous use to about 425°C (797 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 436 Cold Drawn?
Yes — 436 Cold Drawn is available for sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- ASTM A240/A240M — Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip — ASTM International (2023)
- ASTM A176 — Stainless and Heat-Resisting Chromium Steel Plate, Sheet and Strip — ASTM International (2018)
- ASM Handbook Vol.1: Properties and Selection — Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.16: Machining — ASM International (1989)
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.