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Steel 1035 Annealed vs 1035 Q&T

Steel · 1035 temper comparison

1035 Annealed and 1035 Q&T are two conditions of the same steel grade, 1035: Annealed versus Q&T (quenched and tempered). The chemistry is identical, so every difference below comes from the condition. 1035 Q&T is the stronger of the two: yield strength 550 MPa (79.8 ksi) against 270 MPa (39.2 ksi) for 1035 Annealed, about 104% more; tensile strength follows at 750 MPa (109 ksi) vs 500 MPa (72.5 ksi). In exchange, 1035 Annealed is the more ductile: elongation 30% versus 18% for 1035 Q&T, and 1035 Q&T is harder (217 HB vs 143 HB). On the shop floor, 1035 Annealed welds better (good vs fair).

1035 AnnealedChoose it when the part is bent, formed or impact-loaded, or when it will be welded.

1035 Q&TChoose it when strength drives the design.

1035 Annealed vs 1035 Q&T: properties

1035 Annealed1035 Q&T

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

500 MPa72.5 ksi
750 MPa109 ksi

Yield Strength (0.2% offset)

270 MPa39.2 ksi
550 MPa79.8 ksi

Elongation at Break

30%
18%

Reduction in Area

55%
50%

Shear Strength

360 MPa52.2 ksi
450 MPa65.3 ksi

Fatigue Strength (Endurance Limit)

230 MPa33.4 ksi
340 MPa49.3 ksi

Fracture Toughness (K_IC)

60 MPa·√m54.6 ksi·√in
65 MPa·√m59.2 ksi·√in

Charpy V-Notch Impact (RT)

70 J51.6 ft·lbf
60 J44.3 ft·lbf

Hardness, Brinell

143 HB
217 HB

Hardness, Rockwell B

78 HRB
85 HRB

Hardness, Vickers

170 HV
228 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 · Compressive Strength 320 MPa46.4 ksi

Physical

Density and transition temperatures.

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,500°C2,732 °F

Thermal

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

Same in both: Thermal Conductivity 49 W/m·K28.3 BTU/hr·ft·°F · Specific Heat Capacity 486 J/kg·K0.12 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 · Max Service Temperature (continuous) 425°C797 °F · Min Service Temperature -20°C-4 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10.8 % IACS · Electrical Resistivity 1.6×10⁻⁷ Ω·m6.3 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Galvanic Potential (seawater, vs SCE) -0.61 V · Corrosion Resistance 10 / 100

Manufacturability

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

Machinability

60 / 100
52 / 100

Machinability Rating (AISI 1212 = 100 %)

65%
55%

Weldability

58 / 100
42 / 100

Formability (cold)

62 / 100
28 / 100

Same in both: Brazeability / Solderability 65 / 100 · Polishability 60 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Embodied Water 45 L/kg5.4 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 scale1035

1035 Annealed vs 1035 Q&T — frequently asked

Is 1035 Q&T stronger than 1035 Annealed?

Yes. 1035 Q&T has a typical yield strength of 550 MPa (79.8 ksi) against 270 MPa (39.2 ksi) for 1035 Annealed — about 104% more. Tensile strength is 750 MPa (109 ksi) vs 500 MPa (72.5 ksi).

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

HR is the default 1035 condition in the FabDigit quote flow (neither Annealed 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, 1035 Annealed or 1035 Q&T?

1035 Annealed. Its machinability rates good (60/100) against fair (52/100) for 1035 Q&T; for welding the order is 1035 Annealed first (good, 58/100) then 1035 Q&T (fair, 42/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1035 Annealed and 1035 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.