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Steel 60Si2MnA Cold Drawn vs 60Si2MnA Q&T

Steel · 60Si2MnA temper comparison

60Si2MnA Cold Drawn and 60Si2MnA Q&T are two conditions of the same steel grade, 60Si2MnA: Cold Drawn versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. 60Si2MnA Q&T is the stronger of the two: yield strength 1,500 MPa (218 ksi) against 950 MPa (138 ksi) for 60Si2MnA Cold Drawn, about 58% more; tensile strength follows at 1,700 MPa (247 ksi) vs 1,150 MPa (167 ksi). 60Si2MnA Q&T is harder — 460 HB against 330 HB for 60Si2MnA Cold Drawn — which matters for wear surfaces and threads. 60Si2MnA Q&T runs hotter in service (230°C vs 150°C continuous). On the shop floor, 60Si2MnA Cold Drawn machines more easily (fair vs poor), 60Si2MnA Cold Drawn welds better (poor vs not recommended), and 60Si2MnA Cold Drawn forms better (poor vs not recommended).

60Si2MnA Cold DrawnChoose it when the part is machined in volume, or when it will be welded.

60Si2MnA Q&TChoose it when strength drives the design, or when surface hardness matters.

60Si2MnA Cold Drawn vs 60Si2MnA Q&T: properties

60Si2MnA Cold Drawn60Si2MnA Q&T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
206 GPa29.9 Msi

Tensile Strength (Ultimate)

1,150 MPa167 ksi
1,700 MPa247 ksi

Yield Strength (0.2% offset)

950 MPa138 ksi
1,500 MPa218 ksi

Reduction in Area

25%
27%

Shear Strength

700 MPa102 ksi
1,020 MPa148 ksi

Fatigue Strength (Endurance Limit)

490 MPa71.1 ksi
720 MPa104 ksi

Charpy V-Notch Impact (RT)

12 J8.9 ft·lbf
16 J11.8 ft·lbf

Hardness, Brinell

330 HB
460 HB

Hardness, Vickers

345 HV
490 HV

Same in both: Shear Modulus 79 GPa11.5 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29 · Elongation at Break 7% · Hardness, Rockwell B 100 HRB

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,450°C2,642 °F · Liquidus Temperature 1,495°C2,723 °F

Thermal

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

Thermal Conductivity

36 W/m·K20.8 BTU/hr·ft·°F
37 W/m·K21.4 BTU/hr·ft·°F

Max Service Temperature (continuous)

150°C302 °F
230°C446 °F

Same in both: Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 6 % IACS · Electrical Resistivity 2.9×10⁻⁷ Ω·m11.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

42 / 100
20 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
20%

Weldability

20 / 100
10 / 100

Formability (cold)

25 / 100
10 / 100

Same in both: Brazeability / Solderability 45 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 26 MJ/kg11,178 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 55 L/kg6.6 gal/lb · Typical Recycled Content 30%

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 scale60Si2MnA

60Si2MnA Cold Drawn vs 60Si2MnA Q&T — frequently asked

Is 60Si2MnA Q&T stronger than 60Si2MnA Cold Drawn?

Yes. 60Si2MnA Q&T has a typical yield strength of 1,500 MPa (218 ksi) against 950 MPa (138 ksi) for 60Si2MnA Cold Drawn — about 58% more. Tensile strength is 1,700 MPa (247 ksi) vs 1,150 MPa (167 ksi).

Which condition does FabDigit quote by default, Cold Drawn or Q&T?

Annealed is the default 60Si2MnA condition in the FabDigit quote flow (neither Cold Drawn nor Q&T). 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 is easier to machine, 60Si2MnA Cold Drawn or 60Si2MnA Q&T?

60Si2MnA Cold Drawn. Its machinability rates fair (42/100) against poor (20/100) for 60Si2MnA Q&T; for welding the order is 60Si2MnA Cold Drawn first (poor, 20/100) then 60Si2MnA Q&T (not recommended, 10/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 60Si2MnA Cold Drawn and 60Si2MnA Q&T 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.