Stainless Steel ZG0Cr18Ni12Mo2Ti
ASTM CF3M
ZG0Cr18Ni12Mo2Ti is a low-carbon, titanium-stabilized 18Cr-12Ni-2Mo cast austenitic stainless steel cross-referenced to CF3M.
Reference datasheet — ZG0Cr18Ni12Mo2Ti 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 ST condition
ZG0Cr18Ni12Mo2Ti tempers and conditions
ZG0Cr18Ni12Mo2Ti is supplied in 4 conditions, soft to hard. ST 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 |
|---|---|---|---|---|---|---|
As fabricated | Cheapest condition for non-critical, mildly corrosive service where the full solution treatment cost is not justified. | 225 | 480 | 25 | 163 HB | 2.3 % IACS |
STDefault Solution annealed | Standard supply condition per GB/T 2100 — maximum corrosion resistance, ductility and impact toughness. | 235 | 520 | 40 | 150 HB | — |
Stabilizing anneal 850–900 °C after solution treatment | Choose when the casting will see prolonged 450–850 °C service or heavy weld repair and maximum intergranular-corrosion immunity is required. | 240 | 515 | 34 | 155 HB | 2.3 % IACS |
hot isostatically pressed then solution treated | For pressure-containing or fatigue-critical castings where microporosity must be closed (subsea valve bodies, pump casings). | 250 | 545 | 46 | 150 HB | 2.3 % IACS |
What is ZG0Cr18Ni12Mo2Ti?
ZG0Cr18Ni12Mo2Ti is a low-carbon, titanium-stabilized 18Cr-12Ni-2Mo cast austenitic stainless steel cross-referenced to CF3M. It is selected for as-welded chloride and dilute-acid service castings, where the molybdenum addition supplies pitting resistance and the titanium stabilization prevents sensitization without a post-weld solution treatment; supplied in F, ST, SA and ST-HIP conditions. Typical properties are 235 MPa yield, 520 MPa tensile, 40 % elongation and 150 HB (80 HRB), with a maximum service temperature of 800 °C. Machinability is poor (score 38); unstabilized CF3M is the nearest alternative where re-solution treatment after welding is practical. ZG0Cr18Ni12Mo2Ti has a density of 7.95 g/cm³ (0.287 lb/in³), heavier than 81% of stainless steel grades. It melts at 1,390°C (2,534 °F). ZG0Cr18Ni12Mo2Ti has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 98% of stainless steel grades. Elongation at break is 40% and the elastic modulus is 193 GPa (28 Msi).
What is ZG0Cr18Ni12Mo2Ti used for?
- welded seawater valve castings
- pharmaceutical process pump housings
- brine handling equipment
Advantages
- Readily welded — 88/100, better than 91% of stainless steel grades
- Tough — resists crack growth — 200 MPa·√m (182 ksi·√in), better than 86% of stainless steel grades
- Good corrosion resistance — 73/100, better than 77% of stainless steel grades
Limitations
- Low strength — 235 MPa (34.1 ksi), worse than 98% of stainless steel grades
- Limited formability — 25/100, worse than 78% of stainless steel grades
ZG0Cr18Ni12Mo2Ti properties
Typical room-temperature values for ZG0Cr18Ni12Mo2Ti-ST; bars are the position among stainless steel grades.
Physical3
ZG0Cr18Ni12Mo2Ti has a density of 7.95 g/cm³ (0.287 lb/in³), heavier than 81% of stainless steel grades. It melts at 1,390°C (2,534 °F).
Mechanical16
ZG0Cr18Ni12Mo2Ti has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 98% of stainless steel grades. Elongation at break is 40% and the elastic modulus is 193 GPa (28 Msi).
Thermal6
ZG0Cr18Ni12Mo2Ti is rated for continuous service to 800°C (1,472 °F). It conducts heat at 14.5 W/m·K (8.38 BTU/hr·ft·°F), worse than 72% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).
Electrical3
ZG0Cr18Ni12Mo2Ti conducts electricity at 2.3 % IACS, better than 55% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is very good (73/100), better than 77% of stainless steel grades.
Sustainability4
Producing a kilogram of ZG0Cr18Ni12Mo2Ti takes about 55 MJ of energy and emits 5 kg of CO₂ — more than 50% of stainless steel grades. Typical recycled content is 70%.
Manufacturability7
ZG0Cr18Ni12Mo2Ti's machinability is fair (38/100, better than 63% of stainless steel grades); weldability excellent (88/100); formability poor (25/100).
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 stainless steel family
Yield strength against density for every stainless steel grade FabDigit runs. ZG0Cr18Ni12Mo2Ti is highlighted; hover a dot for its name, or open the interactive family chart.
Working with ZG0Cr18Ni12Mo2Ti
Is ZG0Cr18Ni12Mo2Ti easy to machine?
Gummy and strongly work-hardening — use rigid setups, sharp positive-rake carbide, low speed/high feed, flood coolant and avoid dwelling; Ti(C,N) inclusions accelerate flank wear.
Can ZG0Cr18Ni12Mo2Ti be welded?
Excellent — weld with ER316L/ER318 (Nb or Ti bearing) filler, low heat input, no preheat, interpass ≤150 °C; Ti stabilization allows as-welded chloride service without re-solution treatment.
Can ZG0Cr18Ni12Mo2Ti be formed, bent or molded?
Sand or investment cast with generous risering (long freezing range, ~2.2 % solidification shrinkage); protect the Ti addition with argon cover or vacuum melting to avoid burn-off and dross.
ZG0Cr18Ni12Mo2Ti 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 |
|---|---|---|
| C'0Cr' class low carbon; many foundries hold ≤0.03 for CF3M equivalence | ≤ 0.08 | 0.05 |
| Si | ≤ 1.5 | 1 |
| Mn | ≤ 1.5 | 1 |
| P | ≤ 0.04 | 0.03 |
| S | ≤ 0.03 | 0.02 |
| Cr | 17 – 20 | 18.5 |
| Ni | 11 – 14 | 12.5 |
| Mo | 2 – 3 | 2.5 |
| Ti≥8×C for stabilization | 0.4 – 1 | 0.55 |
| Fe | balance |
What surface finishes work on ZG0Cr18Ni12Mo2Ti?
Pickle-and-passivate (HNO₃/HF) after heat treatment to remove scale and restore the passive film; shot blast with stainless or ceramic media only; can be electropolished, but casting porosity and Ti stringers limit mirror finishes.
Surface treatments FabDigit runs on stainless 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).
Passivation
Organic Coating
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Stainless Steel ZG0Cr18Ni12Mo2Ti in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- CF3M
How much does ZG0Cr18Ni12Mo2Ti cost?
ZG0Cr18Ni12Mo2Ti is a premium-cost stainless 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.
ZG0Cr18Ni12Mo2Ti — frequently asked
What is ZG0Cr18Ni12Mo2Ti used for?
ZG0Cr18Ni12Mo2Ti is typically used for welded seawater valve castings, pharmaceutical process pump housings and brine handling equipment. In short: ti-stabilized cast CF3M; as-welded chloride service; weldability score 88.
What is the yield strength of ZG0Cr18Ni12Mo2Ti?
ZG0Cr18Ni12Mo2Ti has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 520 MPa (75.4 ksi) — weaker than 98% of stainless steel grades. Strength varies by condition: see the 4 listed tempers.
Is ZG0Cr18Ni12Mo2Ti easy to machine?
Not especially — machinability is rated fair (38/100, better than 63% of stainless steel grades). Gummy and strongly work-hardening — use rigid setups, sharp positive-rake carbide, low speed/high feed, flood coolant and avoid dwelling; Ti(C,N) inclusions accelerate flank wear.
Can ZG0Cr18Ni12Mo2Ti be welded?
Yes — weldability is rated excellent (88/100). Excellent — weld with ER316L/ER318 (Nb or Ti bearing) filler, low heat input, no preheat, interpass ≤150 °C; Ti stabilization allows as-welded chloride service without re-solution treatment.
What surface finishes work on ZG0Cr18Ni12Mo2Ti?
Pickle-and-passivate (HNO₃/HF) after heat treatment to remove scale and restore the passive film; shot blast with stainless or ceramic media only; can be electropolished, but casting porosity and Ti stringers limit mirror finishes.
Can ZG0Cr18Ni12Mo2Ti be formed, bent or molded?
Sand or investment cast with generous risering (long freezing range, ~2.2 % solidification shrinkage); protect the Ti addition with argon cover or vacuum melting to avoid burn-off and dross.
What is the maximum service temperature of ZG0Cr18Ni12Mo2Ti?
ZG0Cr18Ni12Mo2Ti is rated for continuous use to about 800°C (1,472 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ZG0Cr18Ni12Mo2Ti-ST and ZG0Cr18Ni12Mo2Ti ST-HIP?
ST is the default condition — standard supply condition per GB/T 2100 — maximum corrosion resistance, ductility and impact toughness. ST-HIP: for pressure-containing or fatigue-critical castings where microporosity must be closed (subsea valve bodies, pump casings). Yield strength is 235 MPa in ST versus 250 MPa in ST-HIP.
How much does ZG0Cr18Ni12Mo2Ti cost?
ZG0Cr18Ni12Mo2Ti is a premium-cost stainless 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
- ASTM A351/A351M — Castings, Austenitic, for Pressure-Containing Parts (CF3M) — ASTM International (2022)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels, and High-Performance Alloys (Cast Stainless Steels) — ASM International (1990)
- Steel Castings Handbook, 6th ed. — Steel Founders' Society of America / ASM (1995)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
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.