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Steel A369 Grade FPB vs P265GH

Steel · grade comparison

Steel A369 Grade FPB and P265GH are both steel grades. Both yield at about 295 MPa — strength does not separate them. A369 Grade FPB is the more ductile: elongation 34% versus 26% for P265GH, and A369 Grade FPB is harder (80 HRB vs 76 HRB). P265GH is stiffer (211 GPa vs 200 GPa).

A369 Grade FPBChoose it when the part is bent, formed or impact-loaded.

A369 Grade FPB vs P265GH: properties

A369 Grade FPBP265GH

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
211 GPa30.6 Msi

Shear Modulus

79 GPa11.5 Msi
81 GPa11.7 Msi

Poisson's Ratio

0.29
0.3

Tensile Strength (Ultimate)

480 MPa69.6 ksi
465 MPa67.4 ksi

Elongation at Break

34%
26%

Reduction in Area

55%
52%

Compressive Strength

290 MPa42.1 ksi
295 MPa42.8 ksi

Shear Strength

300 MPa43.5 ksi
280 MPa40.6 ksi

Fatigue Strength (Endurance Limit)

215 MPa31.2 ksi
205 MPa29.7 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
100 MPa·√m91 ksi·√in

Charpy V-Notch Impact (RT)

65 J47.9 ft·lbf
70 J51.6 ft·lbf

Hardness, Brinell

147 HB
140 HB

Hardness, Rockwell B

80 HRB
76 HRB

Hardness, Vickers

150 HV
147 HV

Same in both: Bulk Modulus 160 GPa23.2 Msi · Yield Strength (0.2% offset) 295 MPa42.8 ksi

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,470°C2,678 °F
1,495°C2,723 °F

Liquidus Temperature

1,515°C2,759 °F
1,520°C2,768 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

52 W/m·K30 BTU/hr·ft·°F
50 W/m·K28.9 BTU/hr·ft·°F

Specific Heat Capacity

470 J/kg·K0.11 BTU/lb·°F
461 J/kg·K0.11 BTU/lb·°F

Max Service Temperature (continuous)

425°C797 °F
400°C752 °F

Min Service Temperature

-29°C-20 °F
-10°C14 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 10 % IACS · Electrical Resistivity 1.7×10⁻⁷ Ω·m6.69 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.62 V

Same in both: Corrosion Resistance 12 / 100

Manufacturability

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

Machinability

65 / 100
66 / 100

Machinability Rating (AISI 1212 = 100 %)

62%
63%

Weldability

88 / 100
90 / 100

Formability (cold)

70 / 100
76 / 100

Castability

55 / 100
—

Polishability

45 / 100
50 / 100

Same in both: Brazeability / Solderability 70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

45 L/kg5.4 gal/lb
40 L/kg4.8 gal/lb

Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 2 kg CO₂/kg · Typical Recycled Content 25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

61 kN·m/kg
59 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.9 MN·m/kg

Modulus of Resilience

218 kJ/m³
206 kJ/m³

Thermal Diffusivity

14.1 mm²/s
13.8 mm²/s

Thermal Shock Resistance Index

10
9

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 scaleP265GHA369 Grade FPB

Manufacturing and finishing

CapabilityA369 Grade FPBP265GH
CNC machining—Yes
Sheet metal—Yes
Default condition—HR
Relative cost$$ Standard$$ Standard
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
E-Coating—Yes
HVOF Coating—Yes
Hot-Dip Galvanizing—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

A369 Grade FPB vs P265GH — frequently asked

What is the difference between A369 Grade FPB and P265GH?

Steel A369 Grade FPB and P265GH are both steel grades. Both yield at about 295 MPa — strength does not separate them. A369 Grade FPB is the more ductile: elongation 34% versus 26% for P265GH, and A369 Grade FPB is harder (80 HRB vs 76 HRB).

Which is cheaper, A369 Grade FPB or P265GH?

Both sit in the same relative cost tier ($$, standard); the part price will be decided by machining time, tolerance and quantity rather than by the material.

When should I choose A369 Grade FPB over P265GH?

Pick A369 Grade FPB when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in A369 Grade FPB and P265GH 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.