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Steel 1119-A vs 1119-HR

Steel · 1119 temper comparison

1119-A and 1119-HR are two conditions of the same steel grade, 1119: A (solution annealed) versus HR (hot rolled). The chemistry is identical, so every difference below comes from the condition. 1119-A is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 235 MPa (34.1 ksi) for 1119-HR, about 6% more. 1119-A is the more ductile: elongation 30% versus 25% for 1119-HR.

1119-AChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

1119-A vs 1119-HR: properties

1119-A1119-HR

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

400 MPa58 ksi
425 MPa61.6 ksi

Yield Strength (0.2% offset)

250 MPa36.3 ksi
235 MPa34.1 ksi

Elongation at Break

30%
25%

Reduction in Area

58%
45%

Shear Strength

270 MPa39.2 ksi
285 MPa41.3 ksi

Fatigue Strength (Endurance Limit)

200 MPa29 ksi
210 MPa30.5 ksi

Fracture Toughness (K_IC)

85 MPa·√m77.4 ksi·√in
70 MPa·√m63.7 ksi·√in

Charpy V-Notch Impact (RT)

50 J36.9 ft·lbf
40 J29.5 ft·lbf

Hardness, Brinell

116 HB
121 HB

Hardness, Rockwell B

66 HRB
69 HRB

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 140 GPa20.3 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Same in both: Density 7.87 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.

Thermal Conductivity

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

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · 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.

Electrical Conductivity

10 % IACS
9.5 % IACS

Electrical Resistivity

1.72×10⁻⁷ Ω·m6.77 µΩ·in
1.8×10⁻⁷ Ω·m7.09 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

85 / 100
88 / 100

Machinability Rating (AISI 1212 = 100 %)

85%
90%

Weldability

28 / 100
25 / 100

Formability (cold)

55 / 100
50 / 100

Same in both: Brazeability / Solderability 55 / 100 · Polishability 40 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 1.9 kg CO₂/kg · Embodied Water 45 L/kg5.4 gal/lb · Typical Recycled Content 35%

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 scale1119

1119-A vs 1119-HR — frequently asked

Is 1119-A stronger than 1119-HR?

Yes. 1119-A has a typical yield strength of 250 MPa (36.3 ksi) against 235 MPa (34.1 ksi) for 1119-HR — about 6% more. Tensile strength is 400 MPa (58 ksi) vs 425 MPa (61.6 ksi).

Which condition does FabDigit quote by default, A or HR?

CD is the default 1119 condition in the FabDigit quote flow (neither A nor HR). 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.

When should I choose 1119-A over 1119-HR?

Pick 1119-A when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 1119-A and 1119-HR 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.