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Stainless Steel 430 vs S44536

Stainless Steel · grade comparison

Stainless Steel 430 and S44536 are both stainless steel grades. Both yield at about 310 MPa — strength does not separate them. 430 is the more ductile: elongation 30% versus 27% for S44536, and S44536 is harder (170 HB vs 155 HB). 430 runs hotter in service (815°C vs 400°C continuous) and 430 conducts heat better (26 W/m·K vs 20 W/m·K). On the shop floor, 430 sits in a lower cost tier (standard, $$) than S44536 (high, $$$$).

430Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

430 vs S44536: properties

430S44536

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Poisson's Ratio

0.28
0.29

Tensile Strength (Ultimate)

500 MPa72.5 ksi
490 MPa71.1 ksi

Yield Strength (0.2% offset)

310 MPa45 ksi
320 MPa46.4 ksi

Elongation at Break

30%
27%

Reduction in Area

65%
60%

Shear Strength

350 MPa50.8 ksi
300 MPa43.5 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
270 MPa39.2 ksi

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
30 J22.1 ft·lbf

Hardness, Brinell

155 HB
170 HB

Hardness, Rockwell B

82 HRB
85 HRB

Hardness, Vickers

160 HV
180 HV

Compressive Strength

—
320 MPa46.4 ksi

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Fracture Toughness (K_IC) 70 MPa·√m63.7 ksi·√in

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,425°C2,597 °F
1,450°C2,642 °F

Same in both: Density 7.7 g/cm³0.28 lb/in³ · Liquidus Temperature 1,510°C2,750 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

26 W/m·K15 BTU/hr·ft·°F
20 W/m·K11.6 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

10.4 µm/m·K5.8 µin/in·°F
10 µm/m·K5.6 µin/in·°F

Max Service Temperature (continuous)

815°C1,499 °F
400°C752 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Latent Heat of Fusion 260 J/g112 BTU/lb · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.9 % IACS
2.8 % IACS

Electrical Resistivity

6×10⁻⁷ Ω·m23.6 µΩ·in
6.2×10⁻⁷ Ω·m24.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.1 V

Corrosion Resistance

55 / 100
78 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

50 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

54%
48%

Weldability

60 / 100
55 / 100

Formability (cold)

65 / 100
60 / 100

Polishability

80 / 100
70 / 100

Same in both: Brazeability / Solderability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

40 MJ/kg17,197 BTU/lb
55 MJ/kg23,646 BTU/lb

Embodied Carbon (primary production)

3.8 kg CO₂/kg
3.6 kg CO₂/kg

Embodied Water

80 L/kg9.6 gal/lb
130 L/kg15.6 gal/lb

Typical Recycled Content

70%
60%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

65 kN·m/kg
64 kN·m/kg

Modulus of Resilience

240 kJ/m³
256 kJ/m³

Thermal Diffusivity

7.3 mm²/s
5.6 mm²/s

Thermal Shock Resistance Index

6
5

Same in both: Specific Stiffness (E / density) 26 MN·m/kg

Strength versus weight

Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale430S44536

Manufacturing and finishing

Capability430S44536
CNC machiningYes—
Sheet metalYes—
Default conditionAnnealed—
Relative cost$$ Standard$$$$ High
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
ElectropolishingYes—
HVOF CoatingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Passivation (Stainless Steel)Yes—

They share 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.

430 vs S44536 — frequently asked

What is the difference between 430 and S44536?

Stainless Steel 430 and S44536 are both stainless steel grades. Both yield at about 310 MPa — strength does not separate them. 430 is the more ductile: elongation 30% versus 27% for S44536, and S44536 is harder (170 HB vs 155 HB).

Which is cheaper, 430 or S44536?

430 is the lower-cost material: it sits in the standard tier ($$) while S44536 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 430 or S44536?

430, by a small margin. Both rate fair for machinability — 50/100 against 45/100 for S44536; for welding the order is 430 first (good, 60/100) then S44536 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 430 and S44536 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.