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Steel M2 As Printed vs M2-HIP

Steel · M2 temper comparison

M2 As Printed and M2-HIP are two conditions of the same steel grade, M2: As Printed (as built (as printed)) versus HIP (hot isostatic pressed). The chemistry is identical, so every difference below comes from the condition. M2-HIP is the stronger of the two: yield strength 1,900 MPa (276 ksi) against 570 MPa (82.7 ksi) for M2 As Printed, about 3.3 times as much; tensile strength follows at 2,200 MPa (319 ksi) vs 1,300 MPa (189 ksi). M2-HIP is the more ductile: elongation 1% versus 0.4% for M2 As Printed, and M2-HIP is harder (250 HB vs 235 HB). M2-HIP is stiffer (225 GPa vs 200 GPa) and M2-HIP runs hotter in service (560°C vs 450°C continuous). On the shop floor, M2-HIP machines more easily (fair vs not recommended).

M2-HIPChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

M2 As Printed vs M2-HIP: properties

M2 As PrintedM2-HIP

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
225 GPa32.6 Msi

Tensile Strength (Ultimate)

1,300 MPa189 ksi
2,200 MPa319 ksi

Yield Strength (0.2% offset)

570 MPa82.7 ksi
1,900 MPa276 ksi

Elongation at Break

0.4%
1%

Compressive Strength

600 MPa87 ksi
3,400 MPa493 ksi

Shear Strength

560 MPa81.2 ksi
1,300 MPa189 ksi

Fatigue Strength (Endurance Limit)

420 MPa60.9 ksi
820 MPa119 ksi

Fracture Toughness (K_IC)

13 MPa·√m11.8 ksi·√in
24 MPa·√m21.8 ksi·√in

Charpy V-Notch Impact (RT)

4 J3 ft·lbf
16 J11.8 ft·lbf

Hardness, Brinell

235 HB
250 HB

Hardness, Vickers

720 HV
840 HV

Same in both: Shear Modulus 84 GPa12.2 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.28 · Reduction in Area 25% · Hardness, Rockwell B 99 HRB

Physical

Density and transition temperatures.

Density

8.05 g/cm³0.29 lb/in³
8.15 g/cm³0.29 lb/in³

Same in both: Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,480°C2,696 °F

Thermal

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

Thermal Conductivity

21.5 W/m·K12.4 BTU/hr·ft·°F
23 W/m·K13.3 BTU/hr·ft·°F

Max Service Temperature (continuous)

450°C842 °F
560°C1,040 °F

Same in both: Specific Heat Capacity 420 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.1 µm/m·K5.6 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

3.1 % IACS
3 % IACS

Electrical Resistivity

5.5×10⁻⁷ Ω·m21.7 µΩ·in
5.7×10⁻⁷ Ω·m22.4 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

15 / 100
16 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.55 V

Manufacturability

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

Machinability

6 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

40%
42%

Weldability

18 / 100
15 / 100

Formability (cold)

12 / 100
5 / 100

Polishability

70 / 100
85 / 100

Same in both: Brazeability / Solderability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 48 MJ/kg20,636 BTU/lb · Embodied Carbon (primary production) 3.4 kg CO₂/kg · Embodied Water 70 L/kg8.4 gal/lb · Typical Recycled Content 40%

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 scaleM2

M2 As Printed vs M2-HIP — frequently asked

Is M2-HIP stronger than M2 As Printed?

Yes. M2-HIP has a typical yield strength of 1,900 MPa (276 ksi) against 570 MPa (82.7 ksi) for M2 As Printed — about 3.3 times as much. Tensile strength is 2,200 MPa (319 ksi) vs 1,300 MPa (189 ksi).

Which condition does FabDigit quote by default, As Printed or HIP?

Annealed is the default M2 condition in the FabDigit quote flow (neither As Printed nor HIP). 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, M2 As Printed or M2-HIP?

M2-HIP. Its machinability rates fair (38/100) against not recommended (6/100) for M2 As Printed.

Ready to make it?

Upload a CAD file and FabDigit prices the part in M2 As Printed and M2-HIP 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.