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Stainless Steel 2304 Annealed vs 2304 As Welded

Stainless Steel · 2304 temper comparison

2304 Annealed and 2304 As Welded are two conditions of the same stainless steel grade, 2304: Annealed versus As Welded (as-welded deposit). The chemistry is identical, so every difference below comes from the condition. Both yield at about 455 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). 2304 Annealed is the more ductile: elongation 30% versus 22% for 2304 As Welded, and 2304 As Welded is harder (255 HB vs 240 HB).

2304 AnnealedChoose it when the part is bent, formed or impact-loaded.

2304 Annealed vs 2304 As Welded: properties

2304 Annealed2304 As Welded

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

680 MPa98.6 ksi
690 MPa100 ksi

Yield Strength (0.2% offset)

455 MPa66 ksi
470 MPa68.2 ksi

Elongation at Break

30%
22%

Reduction in Area

55%
35%

Compressive Strength

470 MPa68.2 ksi
480 MPa69.6 ksi

Shear Strength

420 MPa60.9 ksi
425 MPa61.6 ksi

Fatigue Strength (Endurance Limit)

400 MPa58 ksi
260 MPa37.7 ksi

Fracture Toughness (K_IC)

120 MPa·√m109 ksi·√in
75 MPa·√m68.3 ksi·√in

Charpy V-Notch Impact (RT)

210 J155 ft·lbf
90 J66.4 ft·lbf

Hardness, Brinell

240 HB
255 HB

Hardness, Rockwell C

22 HRC
24 HRC

Hardness, Vickers

250 HV
265 HV

Same in both: Elastic (Young's) Modulus 200 GPa29 Msi · Shear Modulus 77 GPa11.2 Msi · Bulk Modulus 150 GPa21.8 Msi · Poisson's Ratio 0.3 · Hardness, Rockwell B 99 HRB

Physical

Density and transition temperatures.

Same in both: Density 7.75 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,385°C2,525 °F · Liquidus Temperature 1,445°C2,633 °F

Thermal

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

Same in both: Thermal Conductivity 16 W/m·K9.2 BTU/hr·ft·°F · Specific Heat Capacity 480 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 13 µm/m·K7.2 µin/in·°F · Latent Heat of Fusion 275 J/g118 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 2.2 % IACS · Electrical Resistivity 8×10⁻⁷ Ω·m31.5 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

74 / 100
68 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.15 V

Manufacturability

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

Machinability

35 / 100
32 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
36%

Weldability

72 / 100
70 / 100

Formability (cold)

55 / 100
40 / 100

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

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 46 MJ/kg19,776 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 100 L/kg12 gal/lb · Typical Recycled Content 70%

Strength versus weight

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

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scale2304

2304 Annealed vs 2304 As Welded — frequently asked

What is the difference between 2304 Annealed and 2304 As Welded?

2304 Annealed and 2304 As Welded are two conditions of the same stainless steel grade, 2304: Annealed versus As Welded (as-welded deposit). The chemistry is identical, so every difference below comes from the condition. Both yield at about 455 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 As Welded?

Solution Annealed is the default 2304 condition in the FabDigit quote flow (neither Annealed nor As Welded). 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 2304 Annealed over 2304 As Welded?

Pick 2304 Annealed when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2304 Annealed and 2304 As Welded 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.