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Steel A36 Galvanized vs DX53D

Steel · grade comparison

Steel A36 Galvanized and DX53D are both steel grades, both corrosion resistant steel. A36 Galvanized is the stronger of the two: yield strength 275 MPa (39.9 ksi) against 220 MPa (31.9 ksi) for DX53D, about 25% more; tensile strength follows at 450 MPa (65.3 ksi) vs 330 MPa (47.9 ksi). In exchange, DX53D is the more ductile: elongation 33% versus 23% for A36 Galvanized, and A36 Galvanized is harder (120 HB vs 100 HB). DX53D runs hotter in service (400°C vs 200°C continuous). On the shop floor, DX53D welds better (excellent vs very good).

A36 GalvanizedChoose it when strength drives the design.

DX53DChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

A36 Galvanized vs DX53D: properties

A36 GalvanizedDX53D

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
210 GPa30.5 Msi

Shear Modulus

79 GPa11.5 Msi
81 GPa11.7 Msi

Tensile Strength (Ultimate)

450 MPa65.3 ksi
330 MPa47.9 ksi

Yield Strength (0.2% offset)

275 MPa39.9 ksi
220 MPa31.9 ksi

Elongation at Break

23%
33%

Reduction in Area

55%
65%

Compressive Strength

275 MPa39.9 ksi
220 MPa31.9 ksi

Shear Strength

275 MPa39.9 ksi
215 MPa31.2 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
155 MPa22.5 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
—

Charpy V-Notch Impact (RT)

50 J36.9 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

120 HB
100 HB

Hardness, Rockwell B

68 HRB
50 HRB

Hardness, Vickers

125 HV
110 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,425°C2,597 °F
1,495°C2,723 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Liquidus Temperature 1,520°C2,768 °F

Thermal

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

Thermal Conductivity

51.9 W/m·K30 BTU/hr·ft·°F
52 W/m·K30 BTU/hr·ft·°F

Specific Heat Capacity

486 J/kg·K0.12 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.9 µm/m·K6.6 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Latent Heat of Fusion

247 J/g106 BTU/lb
270 J/g116 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
400°C752 °F

Min Service Temperature

-30°C-22 °F
-40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10.5 % IACS
11 % IACS

Same in both: Electrical Resistivity 1.6×10⁻⁷ Ω·m6.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-1.03 V
-1 V

Corrosion Resistance

45 / 100
10 / 100

Manufacturability

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

Machinability

62 / 100
60 / 100

Machinability Rating (AISI 1212 = 100 %)

70%
65%

Weldability

70 / 100
90 / 100

Formability (cold)

70 / 100
85 / 100

Brazeability / Solderability

55 / 100
70 / 100

Polishability

25 / 100
35 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

32 MJ/kg13,758 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

45 L/kg5.4 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

35%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

57 kN·m/kg
42 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

189 kJ/m³
115 kJ/m³

Thermal Diffusivity

13.6 mm²/s
14.1 mm²/s

Thermal Shock Resistance Index

10
7

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 scaleDX53DA36 Galvanized

Manufacturing and finishing

CapabilityA36 GalvanizedDX53D
CNC machiningYes—
Default conditionHRHR
Relative cost$$ Standard$$ Standard
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CrNYes—
DLCYes—
HVOF CoatingYes—
MoS2Yes—
Multilayer CVDYes—
TiAlNYes—
TiB2Yes—
TiCNYes—
TiNYes—
WC/CYes—
ZrNYes—

Both are offered for Sheet metal. They share 22 finishes: Black Oxide, Cerakote, Chrome Plating, Copper Plating, E-Coating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Hot-Dip Galvanizing, Manganese Phosphate, Nickel Plating and 10 more.

A36 Galvanized vs DX53D — frequently asked

Is A36 Galvanized stronger than DX53D?

Yes. A36 Galvanized has a typical yield strength of 275 MPa (39.9 ksi) against 220 MPa (31.9 ksi) for DX53D — about 25% more. Tensile strength is 450 MPa (65.3 ksi) vs 330 MPa (47.9 ksi).

Which is cheaper, A36 Galvanized or DX53D?

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

Which welds better, A36 Galvanized or DX53D?

DX53D. Its weldability rates excellent (90/100) against very good (70/100) for A36 Galvanized.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A36 Galvanized and DX53D 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.