Stainless Steel 1.4530
EN 1.4530
Low-carbon Cr-Ni-Mo-Al-Ti maraging-type precipitation-hardening stainless developed for turbogenerator retaining rings, giving very high strength with good toughness and non-magnetic-adjacent corrosion resistance.
Reference datasheet — 1.4530 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 +P1200 condition
1.4530 tempers and conditions
1.4530 is supplied in 3 conditions, soft to hard. +P1200 is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution annealed | Supply/machining condition: soft enough for heavy machining, forming and welding before the customer's ageing cycle. | 750 | 950 | 18 | 30 HRC | — |
Over-aged (ageing ~560–600 °C) for maximum toughness | Pick when impact toughness, K_IC and stress-corrosion resistance matter more than peak strength (thick sections, sour or marine service). | 960 | 1,080 | 17 | 35 HRC | — |
+P1200Default Precipitation hardened, ageing ~510–540 °C | Standard delivered strength class: peak-aged for retaining rings, high-strength shafts and aerospace parts needing 1200 MPa plus good toughness. | 1,200 | 1,300 | 14 | 41 HRC | — |
What is 1.4530?
Low-carbon Cr-Ni-Mo-Al-Ti maraging-type precipitation-hardening stainless developed for turbogenerator retaining rings, giving very high strength with good toughness and non-magnetic-adjacent corrosion resistance. 1.4530 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F). 1.4530 has a yield strength of 1,200 MPa (174 ksi) and a tensile strength of 1,300 MPa (189 ksi) — stronger than 98% of stainless steel grades. Elongation at break is 14% and the elastic modulus is 200 GPa (29 Msi).
What is 1.4530 used for?
- generator retaining rings
- high-strength rotor components
- turbine hardware
- aerospace fasteners
Advantages
- High strength — 1,200 MPa (174 ksi), better than 98% of stainless steel grades
- Polishes to a fine finish — 80/100, better than 89% of stainless steel grades
Limitations
- Limited ductility — 14%, worse than 91% of stainless steel grades
- Limited service temperature — 400°C (752 °F), worse than 78% of stainless steel grades
- Limited formability — 25/100, worse than 78% of stainless steel grades
1.4530 properties
Typical room-temperature values for 1.4530-+P1200; bars are the position among stainless steel grades.
Physical3
1.4530 has a density of 7.8 g/cm³ (0.282 lb/in³), heavier than 50% of stainless steel grades. It melts at 1,400°C (2,552 °F).
Mechanical16
1.4530 has a yield strength of 1,200 MPa (174 ksi) and a tensile strength of 1,300 MPa (189 ksi) — stronger than 98% of stainless steel grades. Elongation at break is 14% and the elastic modulus is 200 GPa (29 Msi).
Thermal6
1.4530 is rated for continuous service to 400°C (752 °F). It conducts heat at 16.5 W/m·K (9.53 BTU/hr·ft·°F), better than 70% of stainless steel grades. Thermal expansion is 10.6 µm/m·K (5.89 µin/in·°F).
Electrical3
1.4530 conducts electricity at 2.2 % IACS, worse than 61% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), worse than 62% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4530 takes about 58 MJ of energy and emits 4.8 kg of CO₂ — more than 66% of stainless steel grades. Typical recycled content is 25%.
Manufacturability7
1.4530's machinability is poor (30/100, worse than 70% of stainless steel grades); weldability good (65/100); 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. 1.4530 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4530
Is 1.4530 easy to machine?
Machine in the +AT condition with sharp, rigid setups, positive-rake carbide, low speed/high feed and flood coolant; aged material at ~41 HRC cuts like a Q&T tool steel and work-hardens if the tool rubs.
Can 1.4530 be welded?
Very low carbon makes it readily GTAW/EB/laser weldable with matching or maraging filler, no preheat needed; re-solution treat plus age (or at least re-age) after welding to restore joint strength.
Can 1.4530 be formed, bent or molded?
Cold forming and straightening are done in the soft solution-treated state; after ageing the alloy has little ductility reserve, so bending or coining of finished parts should be avoided.
1.4530 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 |
|---|---|---|
| Cultra-low carbon, VIM/VAR melted | ≤ 0.03 | 0.02 |
| Si | ≤ 0.5 | 0.2 |
| Mn | ≤ 0.5 | 0.2 |
| P | ≤ 0.03 | |
| S | ≤ 0.01 | |
| Cr | 11 – 12.5 | 12 |
| Ni | 8.5 – 9.5 | 9 |
| Mo | 1.5 – 2.2 | 2 |
| AlNiAl precipitation | 0.15 – 0.5 | 0.3 |
| TiNi3Ti precipitation | 0.15 – 0.5 | 0.3 |
| Fe | balance |
What surface finishes work on 1.4530?
Passivate per ASTM A967 (citric or nitric) or electropolish for a bright, low-inclusion surface; avoid electroplating or cathodic protection without post-plating bake because of hydrogen embrittlement risk.
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 1.4530 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X1CrNiMoAlTi12-9-2
- Similar grades
- S13800
How much does 1.4530 cost?
1.4530 is a high-cost stainless steel ($$$$), pricier than about 78% 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.
1.4530 — frequently asked
What is 1.4530 used for?
1.4530 is typically used for generator retaining rings, high-strength rotor components, turbine hardware and aerospace fasteners. In short: maraging-type PH stainless; 1200 MPa yield strength; retaining-ring alloy.
What is the yield strength of 1.4530?
1.4530 has a typical yield strength of 1,200 MPa (174 ksi) and a tensile strength of 1,300 MPa (189 ksi) — stronger than 98% of stainless steel grades. Strength varies by condition: see the 3 listed tempers.
Is 1.4530 easy to machine?
Not especially — machinability is rated poor (30/100, worse than 70% of stainless steel grades). Machine in the +AT condition with sharp, rigid setups, positive-rake carbide, low speed/high feed and flood coolant; aged material at ~41 HRC cuts like a Q&T tool steel and work-hardens if the tool rubs.
Can 1.4530 be welded?
Yes — weldability is rated good (65/100). Very low carbon makes it readily GTAW/EB/laser weldable with matching or maraging filler, no preheat needed; re-solution treat plus age (or at least re-age) after welding to restore joint strength.
What surface finishes work on 1.4530?
Passivate per ASTM A967 (citric or nitric) or electropolish for a bright, low-inclusion surface; avoid electroplating or cathodic protection without post-plating bake because of hydrogen embrittlement risk.
Can 1.4530 be formed, bent or molded?
Cold forming and straightening are done in the soft solution-treated state; after ageing the alloy has little ductility reserve, so bending or coining of finished parts should be avoided.
What is the maximum service temperature of 1.4530?
1.4530 is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 1.4530 cost?
1.4530 is a high-cost stainless steel ($$$$), pricier than about 78% 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 10088-3 Stainless steels — Technical delivery conditions for semi-finished products, bars, rods, wire, sections — CEN (2014)
- EN 10088-1 Stainless steels — List of stainless steels (physical property data) — CEN (2014)
- Marval X12 (X1CrNiMoAlTi12-9-2 / 1.4530) maraging stainless bar datasheet — Aubert & Duval (2020)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels and High-Performance Alloys (PH stainless steels) — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials (stainless steels) — 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.