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Stainless Steel 1.4525 vs CA28MWV

Stainless Steel · grade comparison

Stainless Steel 1.4525 and CA28MWV are both stainless steel grades. CA28MWV is the stronger of the two: yield strength 760 MPa (110 ksi) against 620 MPa (89.9 ksi) for 1.4525, about 23% more; tensile strength follows at 1,035 MPa (150 ksi) vs 870 MPa (126 ksi). In exchange, 1.4525 is the more ductile: elongation 20% versus 13% for CA28MWV, and CA28MWV is harder (302 HB vs 265 HB). CA28MWV runs hotter in service (593°C vs 300°C continuous) and CA28MWV conducts heat better (24 W/m·K vs 17.5 W/m·K). On the shop floor, 1.4525 machines more easily (fair vs poor) and 1.4525 welds better (good vs poor).

1.4525Choose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

CA28MWVChoose it when strength drives the design, or when the part sees heat.

1.4525 vs CA28MWV: properties

1.4525CA28MWV

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

197 GPa28.6 Msi
205 GPa29.7 Msi

Shear Modulus

77 GPa11.2 Msi
79 GPa11.5 Msi

Poisson's Ratio

0.28
0.29

Tensile Strength (Ultimate)

870 MPa126 ksi
1,035 MPa150 ksi

Yield Strength (0.2% offset)

620 MPa89.9 ksi
760 MPa110 ksi

Elongation at Break

20%
13%

Reduction in Area

50%
35%

Compressive Strength

640 MPa92.8 ksi
780 MPa113 ksi

Shear Strength

550 MPa79.8 ksi
620 MPa89.9 ksi

Fatigue Strength (Endurance Limit)

380 MPa55.1 ksi
430 MPa62.4 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

65 J47.9 ft·lbf
20 J14.8 ft·lbf

Hardness, Brinell

265 HB
302 HB

Hardness, Rockwell C

26 HRC
32 HRC

Hardness, Vickers

280 HV
320 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi

Physical

Density and transition temperatures.

Density

7.8 g/cm³0.28 lb/in³
7.75 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,400°C2,552 °F
1,420°C2,588 °F

Liquidus Temperature

1,440°C2,624 °F
1,480°C2,696 °F

Thermal

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

Thermal Conductivity

17.5 W/m·K10.1 BTU/hr·ft·°F
24 W/m·K13.9 BTU/hr·ft·°F

Latent Heat of Fusion

260 J/g112 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

300°C572 °F
593°C1,099 °F

Min Service Temperature

-50°C-58 °F
-20°C-4 °F

Same in both: Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.8 µm/m·K6 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

2.2 % IACS
2.9 % IACS

Electrical Resistivity

8×10⁻⁷ Ω·m31.5 µΩ·in
6×10⁻⁷ Ω·m23.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.25 V
-0.3 V

Corrosion Resistance

62 / 100
42 / 100

Manufacturability

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

Machinability

45 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

45%
30%

Weldability

65 / 100
30 / 100

Formability (cold)

20 / 100
10 / 100

Castability

70 / 100
60 / 100

Brazeability / Solderability

40 / 100
30 / 100

Polishability

75 / 100
65 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

53 MJ/kg22,786 BTU/lb
39 MJ/kg16,767 BTU/lb

Embodied Carbon (primary production)

4.6 kg CO₂/kg
3 kg CO₂/kg

Embodied Water

110 L/kg13.2 gal/lb
120 L/kg14.4 gal/lb

Typical Recycled Content

65%
60%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

112 kN·m/kg
134 kN·m/kg

Specific Stiffness (E / density)

25.3 MN·m/kg
26.5 MN·m/kg

Modulus of Resilience

976 kJ/m³
1,409 kJ/m³

Thermal Diffusivity

4.9 mm²/s
6.7 mm²/s

Thermal Shock Resistance Index

7
11

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 scaleCA28MWV1.4525

Manufacturing and finishing

Capability1.4525CA28MWV
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall——
Best machined surface——

Both take the same 7 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Pickling, Plasma Spray, Silver Plating.

1.4525 vs CA28MWV — frequently asked

Is CA28MWV stronger than 1.4525?

Yes. CA28MWV has a typical yield strength of 760 MPa (110 ksi) against 620 MPa (89.9 ksi) for 1.4525 — about 23% more. Tensile strength is 1,035 MPa (150 ksi) vs 870 MPa (126 ksi).

Which is cheaper, 1.4525 or CA28MWV?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, 1.4525 or CA28MWV?

1.4525. Its machinability rates fair (45/100) against poor (30/100) for CA28MWV; for welding the order is 1.4525 first (good, 65/100) then CA28MWV (poor, 30/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1.4525 and CA28MWV 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.