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Nickel Alloy Hastelloy B-AW vs Hastelloy B Cast

Nickel Alloy · Hastelloy B temper comparison

Hastelloy B-AW and Hastelloy B Cast are two conditions of the same nickel alloy grade, Hastelloy B: AW (as-welded deposit) versus Cast (as cast). The chemistry is identical, so every difference below comes from the condition. Hastelloy B-AW is the stronger of the two: yield strength 450 MPa (65.3 ksi) against 290 MPa (42.1 ksi) for Hastelloy B Cast, about 55% more; tensile strength follows at 760 MPa (110 ksi) vs 550 MPa (79.8 ksi). Hastelloy B-AW is the more ductile: elongation 30% versus 8% for Hastelloy B Cast, and Hastelloy B-AW is harder (215 HB vs 190 HB). Hastelloy B-AW is stiffer (217 GPa vs 205 GPa) and Hastelloy B Cast runs hotter in service (480°C vs 400°C continuous). On the shop floor, Hastelloy B-AW welds better (good vs fair).

Hastelloy B-AWChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Hastelloy B CastChoose it when the part sees heat.

Hastelloy B-AW vs Hastelloy B Cast: properties

Hastelloy B-AWHastelloy B Cast

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

217 GPa31.5 Msi
205 GPa29.7 Msi

Tensile Strength (Ultimate)

760 MPa110 ksi
550 MPa79.8 ksi

Yield Strength (0.2% offset)

450 MPa65.3 ksi
290 MPa42.1 ksi

Elongation at Break

30%
8%

Reduction in Area

30%
10%

Shear Strength

490 MPa71.1 ksi
400 MPa58 ksi

Fatigue Strength (Endurance Limit)

250 MPa36.3 ksi
200 MPa29 ksi

Charpy V-Notch Impact (RT)

55 J40.6 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

215 HB
190 HB

Hardness, Rockwell B

97 HRB
90 HRB

Hardness, Vickers

225 HV
200 HV

Same in both: Shear Modulus 82 GPa11.9 Msi · Bulk Modulus 190 GPa27.6 Msi · Poisson's Ratio 0.32

Physical

Density and transition temperatures.

Same in both: Density 9.24 g/cm³0.33 lb/in³ · Melting Point (Solidus) 1,320°C2,408 °F · Liquidus Temperature 1,350°C2,462 °F

Thermal

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

Thermal Conductivity

11.1 W/m·K6.4 BTU/hr·ft·°F
11 W/m·K6.4 BTU/hr·ft·°F

Max Service Temperature (continuous)

400°C752 °F
480°C896 °F

Same in both: Specific Heat Capacity 377 J/kg·K0.09 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.3 µm/m·K5.7 µin/in·°F · Latent Heat of Fusion 285 J/g123 BTU/lb · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

1.3 % IACS
1.3 % IACS

Electrical Resistivity

1.38×10⁻⁶ Ω·m54.3 µΩ·in
1.4×10⁻⁶ Ω·m55.1 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

62 / 100
78 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.2 V

Manufacturability

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

Machinability Rating (AISI 1212 = 100 %)

11%
10%

Weldability

55 / 100
40 / 100

Formability (cold)

25 / 100
5 / 100

Same in both: Machinability 20 / 100 · Castability 45 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 165 MJ/kg70,937 BTU/lb · Embodied Carbon (primary production) 13 kg CO₂/kg · Embodied Water 250 L/kg30 gal/lb · Typical Recycled Content 35%

Strength versus weight

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

2005001,0006.577.588.59Density (g/cm³)Yield strength (MPa) — log scaleHastelloy B

Hastelloy B-AW vs Hastelloy B Cast — frequently asked

Is Hastelloy B-AW stronger than Hastelloy B Cast?

Yes. Hastelloy B-AW has a typical yield strength of 450 MPa (65.3 ksi) against 290 MPa (42.1 ksi) for Hastelloy B Cast — about 55% more. Tensile strength is 760 MPa (110 ksi) vs 550 MPa (79.8 ksi).

Which condition does FabDigit quote by default, AW or Cast?

SA is the default Hastelloy B condition in the FabDigit quote flow (neither AW nor Cast). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which welds better, Hastelloy B-AW or Hastelloy B Cast?

Hastelloy B-AW. Its weldability rates good (55/100) against fair (40/100) for Hastelloy B Cast.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Hastelloy B-AW and Hastelloy B Cast 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.