Steel GP240GH
ASTM A216 Grade WCB · EN 1.0619
GP240GH (1.0619) is a carbon steel casting grade for elevated-temperature pressure-retaining components, with composition and properties broadly matching ASTM A216 Grade WCB.
Reference datasheet — GP240GH is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the +NT condition
GP240GH tempers and conditions
GP240GH is supplied in 4 conditions, soft to hard. +NT is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Normalized | Basic pressure-casting condition when only RT impact and standard strength are required. | 260 | 485 | 24 | 145 HB | 10 % IACS |
Stress relieved | Applied after weld repair or heavy machining of +N/+NT castings to relieve residual stress with negligible strength change. | 260 | 480 | 26 | 140 HB | 10 % IACS |
+NTDefault Normalized and tempered | Standard stocked condition for valve bodies and pressure castings — best balance of strength, ductility and toughness with low residual stress. | 270 | 490 | 25 | 145 HB | — |
Quenched and tempered | Choose when higher yield strength and better low-temperature/section toughness are needed in thicker castings. | 320 | 540 | 23 | 170 HB | — |
What is GP240GH?
GP240GH (1.0619) is a carbon steel casting grade for elevated-temperature pressure-retaining components, with composition and properties broadly matching ASTM A216 Grade WCB. Default-condition values are 270 MPa yield, 490 MPa tensile, 25% elongation and about 145 HB (78 HRB), with service to 425 °C; it is normally supplied as sand or investment castings in +N, +NT, +QT or +SR condition. Weldability is the main attraction, scoring 85, so pressure-boundary repairs and weld-on fittings are routine. It has no inherent corrosion resistance and must be coated; where higher strength is required at the same temperature, GP280GH is the direct step up. GP240GH has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F). GP240GH has a yield strength of 270 MPa (39.2 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 91% of steel grades. Elongation at break is 25% and the elastic modulus is 210 GPa (30.5 Msi).
What is GP240GH used for?
- Valve bodies
- Pressure vessel castings
- Pump casings for elevated temperature service
Advantages
- Low embodied carbon — 1.9 kg CO₂/kg, better than 92% of steel grades
- Conducts heat well — 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades
- High electrical conductivity — 10 % IACS, better than 83% of steel grades
- Readily welded — 85/100, better than 83% of steel grades
- Ductile — tolerates forming and impact — 25%, better than 77% of steel grades
Limitations
- Low strength — 270 MPa (39.2 ksi), worse than 91% of steel grades
- Limited formability — 20/100, worse than 80% of steel grades
GP240GH properties
Typical room-temperature values for GP240GH-+NT; bars are the position among steel grades.
Physical3
GP240GH has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,425°C (2,597 °F).
Mechanical16
GP240GH has a yield strength of 270 MPa (39.2 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 91% of steel grades. Elongation at break is 25% and the elastic modulus is 210 GPa (30.5 Msi).
Thermal6
GP240GH is rated for continuous service to 425°C (797 °F). It conducts heat at 50 W/m·K (28.9 BTU/hr·ft·°F), better than 87% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
GP240GH conducts electricity at 10 % IACS, better than 83% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (12/100), worse than 53% of steel grades.
Sustainability4
Producing a kilogram of GP240GH takes about 24 MJ of energy and emits 1.9 kg of CO₂ — less than 97% of steel grades. Typical recycled content is 75%.
Manufacturability8
GP240GH's machinability is good (60/100, better than 83% of steel grades); weldability excellent (85/100); formability poor (20/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. GP240GH is highlighted; hover a dot for its name, or open the interactive family chart.
Working with GP240GH
Is GP240GH easy to machine?
Machines like ~0.2 %C steel at 70 % of AISI 1212; watch for hard skin, sand inclusions and shrinkage porosity — use rigid setups and carbide tooling with generous DOC.
Can GP240GH be welded?
Readily weldable by SMAW/GMAW/SAW with E7018-class or ER70S consumables; preheat 100–150 °C for heavy sections and stress-relieve at 600–650 °C after major repair welds.
Can GP240GH be formed, bent or molded?
Produced as sand or investment castings; good fluidity for a steel but requires generous risers, chills and a full normalize to break up as-cast dendritic structure.
GP240GH chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| CEN 10213 max | ≤ 0.25 | 0.2 |
| Si | ≤ 0.6 | 0.4 |
| Mn | ≤ 1.2 | 0.9 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.02 | 0.01 |
| Crresidual element | ≤ 0.3 | 0.1 |
| Niresidual element | ≤ 0.4 | 0.15 |
| Moresidual element | ≤ 0.12 | 0.04 |
| Curesidual element | ≤ 0.3 | 0.1 |
| Vresidual element | ≤ 0.03 | 0.01 |
| Cr+Ni+Mo+Cu+V totalsum of residuals per EN 10213 | ≤ 1 | |
| Fe | balance |
What surface finishes work on GP240GH?
No inherent corrosion resistance — shot-blast then paint, zinc-rich primer, phosphate or electroless nickel; anodizing is not applicable.
Surface treatments FabDigit runs on steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel GP240GH in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- A216 Grade WCB
- EN / DIN / Werkstoff-Nr.
- 1.0619
How much does GP240GH cost?
GP240GH is a standard-cost steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
GP240GH — frequently asked
What is GP240GH used for?
GP240GH is typically used for valve bodies, pressure vessel castings and pump casings for elevated temperature service. In short: EN equivalent of A216 WCB; most weldable cast carbon steel; standard pressure-casting workhorse.
What is the yield strength of GP240GH?
GP240GH has a typical yield strength of 270 MPa (39.2 ksi) and a tensile strength of 490 MPa (71.1 ksi) — weaker than 91% of steel grades. Strength varies by condition: see the 4 listed tempers.
Is GP240GH easy to machine?
Reasonably — machinability is rated good (60/100, better than 83% of steel grades). Machines like ~0.2 %C steel at 70 % of AISI 1212; watch for hard skin, sand inclusions and shrinkage porosity — use rigid setups and carbide tooling with generous DOC.
Can GP240GH be welded?
Yes — weldability is rated excellent (85/100). Readily weldable by SMAW/GMAW/SAW with E7018-class or ER70S consumables; preheat 100–150 °C for heavy sections and stress-relieve at 600–650 °C after major repair welds.
What surface finishes work on GP240GH?
No inherent corrosion resistance — shot-blast then paint, zinc-rich primer, phosphate or electroless nickel; anodizing is not applicable.
Can GP240GH be formed, bent or molded?
Produced as sand or investment castings; good fluidity for a steel but requires generous risers, chills and a full normalize to break up as-cast dendritic structure.
What is the maximum service temperature of GP240GH?
GP240GH is rated for continuous use to about 425°C (797 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does GP240GH cost?
GP240GH is a standard-cost steel ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 10213 — Steel castings for pressure purposes — CEN (2016)
- ASTM A216/A216M — Carbon steel castings for high-temperature service (Grade WCB) — ASTM (2018)
- EN 10027 / Stahl-Eisen-Werkstoffblatt 310 — physical properties of steels — VDEh (1992)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol.15 — Casting — ASM International (2008)
- Cast steel GP240GH (1.0619) valve-body datasheets — European/Chinese steel foundries (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.