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Steel CP1000 vs CP600

Steel · grade comparison

Steel CP1000 and CP600 are both steel grades. CP1000 is the stronger of the two: yield strength 800 MPa (116 ksi) against 430 MPa (62.4 ksi) for CP600, about 86% more; tensile strength follows at 1,050 MPa (152 ksi) vs 640 MPa (92.8 ksi). In exchange, CP600 is the more ductile: elongation 19% versus 8% for CP1000, and CP1000 is harder (315 HB vs 195 HB). CP600 runs hotter in service (250°C vs 200°C continuous) and CP600 conducts heat better (45 W/m·K vs 32 W/m·K). On the shop floor, CP600 machines more easily (fair vs poor), CP600 welds better (very good vs good), and CP600 sits in a lower cost tier (budget, $) than CP1000 (standard, $$).

CP1000Choose it when strength drives the design.

CP600Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

CP1000 vs CP600: properties

CP1000CP600

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Bulk Modulus

160 GPa23.2 Msi
166 GPa24.1 Msi

Tensile Strength (Ultimate)

1,050 MPa152 ksi
640 MPa92.8 ksi

Yield Strength (0.2% offset)

800 MPa116 ksi
430 MPa62.4 ksi

Elongation at Break

8%
19%

Reduction in Area

30%
45%

Compressive Strength

1,050 MPa152 ksi
640 MPa92.8 ksi

Shear Strength

655 MPa95 ksi
390 MPa56.6 ksi

Fatigue Strength (Endurance Limit)

470 MPa68.2 ksi
300 MPa43.5 ksi

Fracture Toughness (K_IC)

50 MPa·√m45.5 ksi·√in
—

Charpy V-Notch Impact (RT)

25 J18.4 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

315 HB
195 HB

Hardness, Rockwell C

33 HRC
—

Hardness, Vickers

330 HV
205 HV

Hardness, Rockwell B

—
92 HRB

Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 80 GPa11.6 Msi · Poisson's Ratio 0.3

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,490°C2,714 °F
1,425°C2,597 °F

Liquidus Temperature

1,520°C2,768 °F
1,500°C2,732 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

32 W/m·K18.5 BTU/hr·ft·°F
45 W/m·K26 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

270 J/g116 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

200°C392 °F
250°C482 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12.5 µm/m·K6.9 µin/in·°F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

8 % IACS
8.5 % IACS

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
2×10⁻⁷ Ω·m7.87 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.6 V
-0.62 V

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

28 / 100
42 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
55%

Weldability

65 / 100
78 / 100

Formability (cold)

35 / 100
58 / 100

Brazeability / Solderability

40 / 100
55 / 100

Polishability

55 / 100
50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
29 MJ/kg12,468 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.2 kg CO₂/kg

Embodied Water

45 L/kg5.4 gal/lb
55 L/kg6.6 gal/lb

Same in both: Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

134 kN·m/kg
82 kN·m/kg

Modulus of Resilience

1,524 kJ/m³
440 kJ/m³

Thermal Diffusivity

8.7 mm²/s
12.5 mm²/s

Thermal Shock Resistance Index

13
11

Same in both: Specific Stiffness (E / density) 26.8 MN·m/kg

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 scaleCP1000CP600

Manufacturing and finishing

CapabilityCP1000CP600
Sheet metalYes—
Default conditionCR—
Relative cost$$ Standard$ Budget
Min. machined wall——
Best machined surface——
Black OxideYes—
CerakoteYes—
Chrome PlatingYes—
E-CoatingYes—
Hot-Dip GalvanizingYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—
Powder CoatingYes—
Tin PlatingYes—
Zinc PlatingYes—
Zinc-Flake (Dip-Spin) CoatingYes—
Zinc-Nickel PlatingYes—

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

CP1000 vs CP600 — frequently asked

Is CP1000 stronger than CP600?

Yes. CP1000 has a typical yield strength of 800 MPa (116 ksi) against 430 MPa (62.4 ksi) for CP600 — about 86% more. Tensile strength is 1,050 MPa (152 ksi) vs 640 MPa (92.8 ksi).

Which is cheaper, CP1000 or CP600?

CP600 is the lower-cost material: it sits in the budget tier ($) while CP1000 is standard ($$). 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, CP1000 or CP600?

CP600. Its machinability rates fair (42/100) against poor (28/100) for CP1000; for welding the order is CP600 first (very good, 78/100) then CP1000 (good, 65/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in CP1000 and CP600 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.