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Stainless Steel 1.4961 vs 304

Stainless Steel · grade comparison

Stainless Steel 1.4961 and 304 are both stainless steel grades. Both yield at about 250 MPa — strength does not separate them. 304 is the more ductile: elongation 55% versus 42% for 1.4961, and 1.4961 is harder (165 HB vs 150 HB). 304 runs hotter in service (870°C vs 700°C continuous). On the shop floor, 304 welds better (excellent vs very good) and 304 sits in a lower cost tier (standard, $$) than 1.4961 (premium, $$$).

304Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

1.4961 vs 304: properties

1.4961304

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
193 GPa28 Msi

Bulk Modulus

160 GPa23.2 Msi
152 GPa22 Msi

Tensile Strength (Ultimate)

590 MPa85.6 ksi
585 MPa84.8 ksi

Elongation at Break

42%
55%

Reduction in Area

60%
70%

Shear Strength

400 MPa58 ksi
415 MPa60.2 ksi

Charpy V-Notch Impact (RT)

150 J111 ft·lbf
200 J148 ft·lbf

Hardness, Brinell

165 HB
150 HB

Hardness, Rockwell B

85 HRB
82 HRB

Hardness, Vickers

175 HV
160 HV

Compressive Strength

—
250 MPa36.3 ksi

Fracture Toughness (K_IC)

—
220 MPa·√m200 ksi·√in

Same in both: Shear Modulus 77 GPa11.2 Msi · Poisson's Ratio 0.29 · Yield Strength (0.2% offset) 250 MPa36.3 ksi · Fatigue Strength (Endurance Limit) 250 MPa36.3 ksi

Physical

Density and transition temperatures.

Density

7.9 g/cm³0.29 lb/in³
8 g/cm³0.29 lb/in³

Same in both: Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,450°C2,642 °F

Thermal

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

Thermal Conductivity

15 W/m·K8.7 BTU/hr·ft·°F
16.2 W/m·K9.4 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

16.5 µm/m·K9.2 µin/in·°F
17.3 µm/m·K9.6 µin/in·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
285 J/g123 BTU/lb

Max Service Temperature (continuous)

700°C1,292 °F
870°C1,598 °F

Same in both: Specific Heat Capacity 500 J/kg·K0.12 BTU/lb·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

7.3×10⁻⁷ Ω·m28.7 µΩ·in
7.2×10⁻⁷ Ω·m28.3 µΩ·in

Same in both: Electrical Conductivity 2.4 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

60 / 100
70 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.05 V

Manufacturability

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

Machinability

38 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
45%

Weldability

75 / 100
88 / 100

Formability (cold)

70 / 100
90 / 100

Brazeability / Solderability

60 / 100
65 / 100

Polishability

70 / 100
88 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

55 MJ/kg23,646 BTU/lb
53 MJ/kg22,786 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
5.4 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
110 L/kg13.2 gal/lb

Typical Recycled Content

60%
70%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

75 kN·m/kg
73 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
24.1 MN·m/kg

Modulus of Resilience

156 kJ/m³
162 kJ/m³

Thermal Diffusivity

3.8 mm²/s
4.1 mm²/s

Same in both: Thermal Shock Resistance Index 3

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 scale3041.4961

Manufacturing and finishing

Capability1.4961304
CNC machining—Yes
Sheet metal—Yes
Casting & forging—Yes
Default condition—Annealed
Relative cost$$$ Premium$$ Standard
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
Electropolishing—Yes
HVOF Coating—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes
Passivation (Stainless Steel)—Yes

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

1.4961 vs 304 — frequently asked

What is the difference between 1.4961 and 304?

Stainless Steel 1.4961 and 304 are both stainless steel grades. Both yield at about 250 MPa — strength does not separate them. 304 is the more ductile: elongation 55% versus 42% for 1.4961, and 1.4961 is harder (165 HB vs 150 HB).

Which is cheaper, 1.4961 or 304?

304 is the lower-cost material: it sits in the standard tier ($$) while 1.4961 is premium ($$$). 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, 1.4961 or 304?

304, by a small margin. Both rate fair for machinability — 45/100 against 38/100 for 1.4961; for welding the order is 304 first (excellent, 88/100) then 1.4961 (very good, 75/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4961 and 304 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.