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Steel 1030 vs C35RC

Steel · grade comparison

Steel 1030 and C35RC are both steel grades. C35RC is the stronger of the two: yield strength 300 MPa (43.5 ksi) against 260 MPa (37.7 ksi) for 1030, about 15% more; tensile strength follows at 520 MPa (75.4 ksi) vs 470 MPa (68.2 ksi). C35RC is the more ductile: elongation 25% versus 20% for 1030, and C35RC is harder (150 HB vs 137 HB).

C35RCChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1030 vs C35RC: properties

1030C35RC

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

470 MPa68.2 ksi
520 MPa75.4 ksi

Yield Strength (0.2% offset)

260 MPa37.7 ksi
300 MPa43.5 ksi

Elongation at Break

20%
25%

Reduction in Area

42%
63%

Compressive Strength

260 MPa37.7 ksi
300 MPa43.5 ksi

Shear Strength

300 MPa43.5 ksi
340 MPa49.3 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
235 MPa34.1 ksi

Fracture Toughness (K_IC)

55 MPa·√m50.1 ksi·√in
60 MPa·√m54.6 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

137 HB
150 HB

Hardness, Rockwell B

75 HRB
80 HRB

Hardness, Vickers

—
158 HV

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Liquidus Temperature

1,510°C2,750 °F
1,495°C2,723 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F

Thermal

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

Thermal Conductivity

51.9 W/m·K30 BTU/hr·ft·°F
51 W/m·K29.5 BTU/hr·ft·°F

Specific Heat Capacity

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

Same in both: Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 247 J/g106 BTU/lb · Max Service Temperature (continuous) 400°C752 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.63 V

Same in both: Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

55 / 100
58 / 100

Weldability

62 / 100
55 / 100

Formability (cold)

50 / 100
82 / 100

Castability

45 / 100
—

Brazeability / Solderability

70 / 100
65 / 100

Polishability

55 / 100
60 / 100

Same in both: Machinability Rating (AISI 1212 = 100 %) 65%

Sustainability

Primary-production footprint per kilogram.

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

40 L/kg4.8 gal/lb
60 L/kg7.2 gal/lb

Typical Recycled Content

30%
28%

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

60 kN·m/kg
66 kN·m/kg

Modulus of Resilience

165 kJ/m³
220 kJ/m³

Thermal Shock Resistance Index

10
11

Same in both: Specific Stiffness (E / density) 26.1 MN·m/kg · Thermal Diffusivity 13.6 mm²/s

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 scale1030C35RC

Manufacturing and finishing

Capability1030C35RC
CNC machiningYes—
Sheet metalYes—
Default conditionHR—
Relative cost$ Budget$ Budget
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
E-CoatingYes—
HVOF CoatingYes—
Hot-Dip GalvanizingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

1030 vs C35RC — frequently asked

Is C35RC stronger than 1030?

Yes. C35RC has a typical yield strength of 300 MPa (43.5 ksi) against 260 MPa (37.7 ksi) for 1030 — about 15% more. Tensile strength is 520 MPa (75.4 ksi) vs 470 MPa (68.2 ksi).

Which is cheaper, 1030 or C35RC?

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

Which welds better, 1030 or C35RC?

1030. Its weldability rates good (62/100) against good (55/100) for C35RC.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1030 and C35RC 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.