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Titanium Ti Grade 37 Annealed vs Ti Grade 37-AW

Titanium · Ti Grade 37 temper comparison

Ti Grade 37 Annealed and Ti Grade 37-AW are two conditions of the same titanium grade, Ti Grade 37: Annealed versus AW (as-welded deposit). The chemistry is identical, so every difference below comes from the condition. Both yield at about 350 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (Annealed versus as-welded deposit). Ti Grade 37 Annealed is the more ductile: elongation 25% versus 22% for Ti Grade 37-AW.

Ti Grade 37 AnnealedChoose it when the part is bent, formed or impact-loaded.

Ti Grade 37 Annealed vs Ti Grade 37-AW: properties

Ti Grade 37 AnnealedTi Grade 37-AW

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

450 MPa65.3 ksi
445 MPa64.5 ksi

Yield Strength (0.2% offset)

350 MPa50.8 ksi
345 MPa50 ksi

Elongation at Break

25%
22%

Reduction in Area

45%
35%

Compressive Strength

480 MPa69.6 ksi
475 MPa68.9 ksi

Shear Strength

300 MPa43.5 ksi
295 MPa42.8 ksi

Fatigue Strength (Endurance Limit)

240 MPa34.8 ksi
175 MPa25.4 ksi

Fracture Toughness (K_IC)

80 MPa·√m72.8 ksi·√in
65 MPa·√m59.2 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
28 J20.7 ft·lbf

Hardness, Brinell

170 HB
175 HB

Hardness, Rockwell B

86 HRB
88 HRB

Hardness, Vickers

180 HV
185 HV

Same in both: Elastic (Young's) Modulus 105 GPa15.2 Msi · Shear Modulus 40 GPa5.8 Msi · Bulk Modulus 110 GPa16 Msi · Poisson's Ratio 0.34

Physical

Density and transition temperatures.

Same in both: Density 4.48 g/cm³0.16 lb/in³ · Melting Point (Solidus) 1,650°C3,002 °F · Liquidus Temperature 1,670°C3,038 °F

Thermal

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

Same in both: Thermal Conductivity 17 W/m·K9.8 BTU/hr·ft·°F · Specific Heat Capacity 523 J/kg·K0.12 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 8.8 µm/m·K4.9 µin/in·°F · Latent Heat of Fusion 325 J/g140 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 3.1 % IACS · Electrical Resistivity 5.6×10⁻⁷ Ω·m22 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

92 / 100
90 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.1 V

Manufacturability

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

Machinability

32 / 100
30 / 100

Machinability Rating (AISI 1212 = 100 %)

25%
23%

Formability (cold)

72 / 100
55 / 100

Same in both: Weldability 88 / 100 · Castability 40 / 100 · Brazeability / Solderability 45 / 100 · Polishability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 650 MJ/kg279,450 BTU/lb · Embodied Carbon (primary production) 38 kg CO₂/kg · Embodied Water 900 L/kg108 gal/lb · Typical Recycled Content 25%

Strength versus weight

Yield strength against density for every titanium grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0004.555.5Density (g/cm³)Yield strength (MPa) — log scaleTi Grade 37

Ti Grade 37 Annealed vs Ti Grade 37-AW — frequently asked

What is the difference between Ti Grade 37 Annealed and Ti Grade 37-AW?

Ti Grade 37 Annealed and Ti Grade 37-AW are two conditions of the same titanium grade, Ti Grade 37: Annealed versus AW (as-welded deposit). The chemistry is identical, so every difference below comes from the condition. Both yield at about 350 MPa — the mechanical properties are the same, and the difference is in how the stock is processed and what it is certified to (Annealed versus as-welded deposit).

Which condition does FabDigit quote by default, Annealed or AW?

Annealed is the default Ti Grade 37 condition in the FabDigit quote flow. 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 Ti Grade 37 Annealed over Ti Grade 37-AW?

Pick Ti Grade 37 Annealed when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Ti Grade 37 Annealed and Ti Grade 37-AW 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.