Steel A27 Grade 60-30 vs GP280GH
Steel · grade comparison
Steel A27 Grade 60-30 and GP280GH are both steel grades. GP280GH is the stronger of the two: yield strength 310 MPa (45 ksi) against 260 MPa (37.7 ksi) for A27 Grade 60-30, about 19% more; tensile strength follows at 540 MPa (78.3 ksi) vs 485 MPa (70.3 ksi). In exchange, A27 Grade 60-30 is the more ductile: elongation 28% versus 24% for GP280GH, and GP280GH is harder (165 HB vs 131 HB). On the shop floor, A27 Grade 60-30 welds better (excellent vs very good) and A27 Grade 60-30 sits in a lower cost tier (budget, $) than GP280GH (standard, $$).
A27 Grade 60-30Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
GP280GHChoose it when strength drives the design.
A27 Grade 60-30 vs GP280GH: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Poisson's Ratio 0.29
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,425°C2,597 °F · Liquidus Temperature 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Same in both: Thermal Expansion (CTE, 20–100 °C) 11.9 µm/m·K6.6 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb · Max Service Temperature (continuous) 425°C797 °F · Min Service Temperature -20°C-4 °F
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)
Same in both: Corrosion Resistance 10 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Machinability Rating (AISI 1212 = 100 %) 65% · Polishability 50 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Same in both: Thermal Shock Resistance Index 10
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.
Manufacturing and finishing
| Capability | A27 Grade 60-30 | GP280GH |
|---|---|---|
| Default condition | — | — |
| Relative cost | $ Budget | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.
A27 Grade 60-30 vs GP280GH — frequently asked
Is GP280GH stronger than A27 Grade 60-30?
Yes. GP280GH has a typical yield strength of 310 MPa (45 ksi) against 260 MPa (37.7 ksi) for A27 Grade 60-30 — about 19% more. Tensile strength is 540 MPa (78.3 ksi) vs 485 MPa (70.3 ksi).
Which is cheaper, A27 Grade 60-30 or GP280GH?
A27 Grade 60-30 is the lower-cost material: it sits in the budget tier ($) while GP280GH is standard ($$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which welds better, A27 Grade 60-30 or GP280GH?
A27 Grade 60-30. Its weldability rates excellent (88/100) against very good (78/100) for GP280GH.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A27 Grade 60-30 and GP280GH 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.