Steel G9Ni10
EN 1.5636
G9Ni10 (EN 1.5636, ASTM A352 Gr.
Reference datasheet — G9Ni10 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 N+T condition
G9Ni10 tempers and conditions
G9Ni10 is supplied in 5 conditions, soft to hard. N+T is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As fabricated | Reference condition only — coarse dendritic structure with poor low-temperature toughness; EN 10213 requires heat treatment before delivery. | 290 | 520 | 15 | 155 HB | 8 % IACS |
N+T heavy section | Thick-walled valve bodies and pump casings; slower cooling gives coarser structure and somewhat lower strength/toughness than thin sections. | 300 | 505 | 24 | 150 HB | 8 % IACS |
normalized, tempered and post-weld stress relieved | Condition after production/repair welding and PWHT (typically 580–620 °C); marginally lower yield but restored toughness and low residual stress. | 315 | 525 | 28 | 155 HB | 8 % IACS |
N+TDefault Normalized and tempered | Standard delivery condition of EN 10213 low-temperature castings; best balance of strength, ductility and -70 °C notch toughness. | 330 | 540 | 28 | 160 HB | — |
Quenched and tempered | Choose when higher yield strength and finer bainitic structure are needed in thicker sections while keeping low-temperature toughness. | 400 | 590 | 24 | 180 HB | — |
What is G9Ni10?
G9Ni10 (EN 1.5636, ASTM A352 Gr. LC9) is a nickel-alloyed low-alloy cast steel, about 9 % Ni, developed for cryogenic and low-temperature pressure-vessel components and normally supplied normalized and tempered or quenched and tempered. Engineers choose it for good impact toughness down to roughly −195 °C together with 330 MPa yield, 540 MPa tensile and 28 % elongation at about 160 HB, as sand or investment castings. Machinability is moderate (score 55) and weldability good (score 70), but corrosion resistance is no better than carbon steel and maximum service temperature is about 300 °C; G9Ni14 is the next grade up for colder or higher-strength duty. G9Ni10 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,440°C (2,624 °F). G9Ni10 has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 78% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
What is G9Ni10 used for?
- LNG storage tank fittings
- cryogenic valve bodies
- low-temperature pressure vessel castings
Advantages
- Ductile — tolerates forming and impact — 28%, better than 89% of steel grades
- Tough — resists crack growth — 120 MPa·√m (109.2 ksi·√in), better than 81% of steel grades
Limitations
- Limited formability — 15/100, worse than 87% of steel grades
- Low strength — 330 MPa (47.9 ksi), worse than 78% of steel grades
- Limited service temperature — 300°C (572 °F), worse than 78% of steel grades
G9Ni10 properties
Typical room-temperature values for G9Ni10-N+T; bars are the position among steel grades.
Physical3
G9Ni10 has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,440°C (2,624 °F).
Mechanical16
G9Ni10 has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 78% of steel grades. Elongation at break is 28% and the elastic modulus is 205 GPa (29.7 Msi).
Thermal6
G9Ni10 is rated for continuous service to 300°C (572 °F). It conducts heat at 42 W/m·K (24.3 BTU/hr·ft·°F), worse than 56% of steel grades. Thermal expansion is 11.6 µm/m·K (6.44 µin/in·°F).
Electrical3
G9Ni10 conducts electricity at 8 % IACS, better than 55% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (13/100), better than 66% of steel grades.
Sustainability4
Producing a kilogram of G9Ni10 takes about 30 MJ of energy and emits 2.2 kg of CO₂ — more than 56% of steel grades. Typical recycled content is 75%.
Manufacturability8
G9Ni10's machinability is good (55/100, better than 62% of steel grades); weldability very good (70/100); formability poor (15/100).
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. G9Ni10 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with G9Ni10
Is G9Ni10 easy to machine?
Machines like a 2.5 % Ni low-alloy steel at ~60 % of AISI 1212; use rigid setups and carbide tooling, expect abrasive cast skin and occasional sand inclusions on the first cut.
Can G9Ni10 be welded?
Good weldability with low-hydrogen SMAW/GTAW consumables of matching 2–3 % Ni type; preheat ~100–150 °C, interpass control, and PWHT at 580–620 °C for pressure parts.
Can G9Ni10 be formed, bent or molded?
Supplied as sand or investment castings; provide generous fillets and directional solidification with risers, then always normalize+temper (or QT) before use.
G9Ni10 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 | ≤ 0.1 | 0.09 |
| Si | ≤ 0.6 | 0.35 |
| Mn | 0.5 – 0.8 | 0.65 |
| P | ≤ 0.02 | 0.01 |
| S | ≤ 0.02 | 0.01 |
| NiEN designation factor for Ni is 4 → '10' = 2.5 % Ni | 2 – 3 | 2.5 |
| Crresidual | ≤ 0.3 | 0.1 |
| Moresidual | ≤ 0.12 | 0.05 |
| Curesidual | ≤ 0.3 | 0.1 |
| Vresidual | ≤ 0.03 | 0.01 |
| Fe | balance |
What surface finishes work on G9Ni10?
No anodizing; shot blast then epoxy/zinc-rich primer, or zinc/nickel plating — the alloy rusts as readily as carbon steel in humid or marine service.
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 G9Ni10 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.5636
- Similar grades
- A352 Gr. LC9
How much does G9Ni10 cost?
G9Ni10 is a premium-cost steel ($$$), cheaper than about 51% 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.
G9Ni10 — frequently asked
What is G9Ni10 used for?
G9Ni10 is typically used for LNG storage tank fittings, cryogenic valve bodies and low-temperature pressure vessel castings. In short: toughness to −195 °C; cryogenic A352 LC9 casting; weldable nickel cast steel.
What is the yield strength of G9Ni10?
G9Ni10 has a typical yield strength of 330 MPa (47.9 ksi) and a tensile strength of 540 MPa (78.3 ksi) — weaker than 78% of steel grades. Strength varies by condition: see the 5 listed tempers.
Is G9Ni10 easy to machine?
Reasonably — machinability is rated good (55/100, better than 62% of steel grades). Machines like a 2.5 % Ni low-alloy steel at ~60 % of AISI 1212; use rigid setups and carbide tooling, expect abrasive cast skin and occasional sand inclusions on the first cut.
Can G9Ni10 be welded?
Yes — weldability is rated very good (70/100). Good weldability with low-hydrogen SMAW/GTAW consumables of matching 2–3 % Ni type; preheat ~100–150 °C, interpass control, and PWHT at 580–620 °C for pressure parts.
What surface finishes work on G9Ni10?
No anodizing; shot blast then epoxy/zinc-rich primer, or zinc/nickel plating — the alloy rusts as readily as carbon steel in humid or marine service.
Can G9Ni10 be formed, bent or molded?
Supplied as sand or investment castings; provide generous fillets and directional solidification with risers, then always normalize+temper (or QT) before use.
What is the maximum service temperature of G9Ni10?
G9Ni10 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between G9Ni10 N+T and G9Ni10-QT?
N+T is the default condition — standard delivery condition of EN 10213 low-temperature castings; best balance of strength, ductility and -70 °C notch toughness. QT: choose when higher yield strength and finer bainitic structure are needed in thicker sections while keeping low-temperature toughness. Yield strength is 330 MPa in N+T versus 400 MPa in QT.
How much does G9Ni10 cost?
G9Ni10 is a premium-cost steel ($$$), cheaper than about 51% 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 (grade G9Ni10, 1.5636) — CEN (2016)
- ASTM A352/A352M — Steel castings, ferritic and martensitic, for pressure-containing parts for low-temperature service (LC2/LC3/LC9) — ASTM (2018)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- Steel Castings Handbook — Steel Founders' Society of America / ASM (1995)
- Stahlschlüssel / Key to Steel — material No. 1.5636 — Verlag Stahlschlüssel Wegst (2019)
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.