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Steel Alloy 49 vs Ingot Iron

Steel · grade comparison

Steel Alloy 49 and Ingot Iron are both steel grades. Alloy 49 is the stronger of the two: yield strength 220 MPa (31.9 ksi) against 150 MPa (21.8 ksi) for Ingot Iron, about 47% more; tensile strength follows at 530 MPa (76.9 ksi) vs 275 MPa (39.9 ksi). In exchange, Ingot Iron is the more ductile: elongation 45% versus 38% for Alloy 49, and Alloy 49 is harder (120 HB vs 70 HB). Ingot Iron is lighter (7.87 g/cm³ vs 8.25 g/cm³ for Alloy 49) and Ingot Iron is stiffer (205 GPa vs 150 GPa). On the shop floor, Ingot Iron machines more easily (45 vs 35 out of 100), Ingot Iron welds better (excellent vs very good), and Ingot Iron sits in a lower cost tier (standard, $$) than Alloy 49 (high, $$$$).

Alloy 49Choose it when strength drives the design.

Ingot IronChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

Alloy 49 vs Ingot Iron: properties

Alloy 49Ingot Iron

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

150 GPa21.8 Msi
205 GPa29.7 Msi

Shear Modulus

58 GPa8.4 Msi
80 GPa11.6 Msi

Bulk Modulus

155 GPa22.5 Msi
170 GPa24.7 Msi

Poisson's Ratio

0.3
0.29

Tensile Strength (Ultimate)

530 MPa76.9 ksi
275 MPa39.9 ksi

Yield Strength (0.2% offset)

220 MPa31.9 ksi
150 MPa21.8 ksi

Elongation at Break

38%
45%

Reduction in Area

65%
70%

Shear Strength

350 MPa50.8 ksi
190 MPa27.6 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
165 MPa23.9 ksi

Charpy V-Notch Impact (RT)

100 J73.8 ft·lbf
200 J148 ft·lbf

Hardness, Brinell

120 HB
70 HB

Hardness, Rockwell B

70 HRB
28 HRB

Hardness, Vickers

125 HV
75 HV

Compressive Strength

—
150 MPa21.8 ksi

Fracture Toughness (K_IC)

—
130 MPa·√m118 ksi·√in

Physical

Density and transition temperatures.

Density

8.25 g/cm³0.3 lb/in³
7.87 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,425°C2,597 °F
1,535°C2,795 °F

Liquidus Temperature

1,450°C2,642 °F
1,538°C2,800 °F

Thermal

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

Thermal Conductivity

13.5 W/m·K7.8 BTU/hr·ft·°F
78 W/m·K45.1 BTU/hr·ft·°F

Specific Heat Capacity

500 J/kg·K0.12 BTU/lb·°F
455 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

9.5 µm/m·K5.3 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Max Service Temperature (continuous)

480°C896 °F
450°C842 °F

Min Service Temperature

-196°C-321 °F
-50°C-58 °F

Latent Heat of Fusion

—
247 J/g106 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

3.6 % IACS
17.5 % IACS

Electrical Resistivity

4.8×10⁻⁷ Ω·m18.9 µΩ·in
1×10⁻⁷ Ω·m3.94 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.35 V
-0.62 V

Corrosion Resistance

32 / 100
10 / 100

Manufacturability

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

Machinability

35 / 100
45 / 100

Machinability Rating (AISI 1212 = 100 %)

35%
50%

Weldability

70 / 100
95 / 100

Formability (cold)

85 / 100
95 / 100

Castability

40 / 100
35 / 100

Brazeability / Solderability

70 / 100
85 / 100

Polishability

70 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

120 MJ/kg51,591 BTU/lb
28 MJ/kg12,038 BTU/lb

Embodied Carbon (primary production)

8.5 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

30%
15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

64 kN·m/kg
35 kN·m/kg

Specific Stiffness (E / density)

18.2 MN·m/kg
26 MN·m/kg

Modulus of Resilience

161 kJ/m³
55 kJ/m³

Thermal Diffusivity

3.3 mm²/s
21.8 mm²/s

Thermal Shock Resistance Index

5
9

Strength versus weight

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

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleAlloy 49Ingot Iron

Manufacturing and finishing

CapabilityAlloy 49Ingot Iron
Default condition——
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——

Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

Alloy 49 vs Ingot Iron — frequently asked

Is Alloy 49 stronger than Ingot Iron?

Yes. Alloy 49 has a typical yield strength of 220 MPa (31.9 ksi) against 150 MPa (21.8 ksi) for Ingot Iron — about 47% more. Tensile strength is 530 MPa (76.9 ksi) vs 275 MPa (39.9 ksi).

Which is cheaper, Alloy 49 or Ingot Iron?

Ingot Iron is the lower-cost material: it sits in the standard tier ($$) while Alloy 49 is high ($$$$). 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, Alloy 49 or Ingot Iron?

Ingot Iron, by a small margin. Both rate fair for machinability — 45/100 against 35/100 for Alloy 49; for welding the order is Ingot Iron first (excellent, 95/100) then Alloy 49 (very good, 70/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in Alloy 49 and Ingot Iron 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.