Stainless Steel 1.4922
EN 1.4922
1.4922 (X20CrMoV11-1, 1Cr11MoV) is the classic 11% Cr-Mo-V martensitic heat-resistant steel, hardened and tempered for creep strength up to about 550 °C and available as +A, +N, +Q, +QT700, +QT800 and +QT900.
Reference datasheet — 1.4922 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 +QT700 condition
1.4922 tempers and conditions
1.4922 is supplied in 6 conditions, soft to hard. +QT700 is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest supply state for heavy machining, deep drilling or cold straightening before final hardening. | 430 | 720 | 20 | 17 HRC | — |
+QT700Default Quenched and tempered ~730–780 °C, Rm 690–840 MPa | Default delivery condition for boiler tubes, pipe, forgings and rotors operating with creep loading up to ~565 °C. | 560 | 760 | 18 | 22 HRC | — |
Quenched and tempered ~700–720 °C, Rm 800–950 MPa | Higher-strength condition for high-temperature bolting, flanges and valve stems where Rp0.2 ≥600 MPa is required. | 700 | 870 | 15 | 27 HRC | — |
Quenched and tempered ~650–690 °C, Rm 900–1050 MPa | Maximum practical strength for turbine blades and short-time-loaded parts; toughness and long-term creep stability are reduced. | 800 | 970 | 13 | 31 HRC | — |
Normalized | Intermediate mill condition for forgings/tubes; because of the high hardenability it is essentially air-hardened and must be tempered before service. | 950 | 1,300 | 8 | 43 HRC | 2.7 % IACS |
Hardened (austenitize 1020–1070 °C, oil/air quench), untempered | As-quenched state only — brittle and highly stressed; temper immediately, never use as delivered condition. | 1,100 | 1,450 | 6 | 46 HRC | 2.7 % IACS |
What is 1.4922?
1.4922 (X20CrMoV11-1, 1Cr11MoV) is the classic 11% Cr-Mo-V martensitic heat-resistant steel, hardened and tempered for creep strength up to about 550 °C and available as +A, +N, +Q, +QT700, +QT800 and +QT900. The default condition gives 560 MPa yield, 760 MPa tensile, 18% elongation and 240 HB (22 HRC), with a maximum service temperature of 565 °C. It is the easiest to machine in this group (score 40) but corrosion resistance is modest (38) and welding requires high preheat with PWHT. For higher creep strength at 600 °C, step up to 1.4905 or 1.4935. 1.4922 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,425°C (2,597 °F). 1.4922 has a yield strength of 560 MPa (81.2 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 85% of stainless steel grades. Elongation at break is 18% and the elastic modulus is 216 GPa (31.3 Msi).
What is 1.4922 used for?
- steam turbine rotors and blades
- high-temperature bolts
- boiler components
- power plant valves
Advantages
- Low embodied carbon — 3.5 kg CO₂/kg, better than 88% of stainless steel grades
- High electrical conductivity — 2.9 % IACS, better than 87% of stainless steel grades
- High strength — 560 MPa (81.2 ksi), better than 85% of stainless steel grades
- Conducts heat well — 24.5 W/m·K (14.2 BTU/hr·ft·°F), better than 85% of stainless steel grades
Limitations
- Needs corrosion protection — 38/100, worse than 95% of stainless steel grades
- Difficult to weld — 30/100, worse than 88% of stainless steel grades
- Limited ductility — 18%, worse than 83% of stainless steel grades
- Hard to polish — 60/100, worse than 80% of stainless steel grades
- Limited formability — 25/100, worse than 78% of stainless steel grades
1.4922 properties
Typical room-temperature values for 1.4922-+QT700; bars are the position among stainless steel grades.
Physical3
1.4922 has a density of 7.7 g/cm³ (0.278 lb/in³), lighter than 83% of stainless steel grades. It melts at 1,425°C (2,597 °F).
Mechanical16
1.4922 has a yield strength of 560 MPa (81.2 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 85% of stainless steel grades. Elongation at break is 18% and the elastic modulus is 216 GPa (31.3 Msi).
Thermal6
1.4922 is rated for continuous service to 565°C (1,049 °F). It conducts heat at 24.5 W/m·K (14.2 BTU/hr·ft·°F), better than 85% of stainless steel grades. Thermal expansion is 10.8 µm/m·K (6 µin/in·°F).
Electrical3
1.4922 conducts electricity at 2.9 % IACS, better than 87% of stainless steel grades.
Chemical & Environmental3
Corrosion resistance is fair (38/100), worse than 95% of stainless steel grades.
Sustainability4
Producing a kilogram of 1.4922 takes about 50 MJ of energy and emits 3.5 kg of CO₂ — less than 80% of stainless steel grades. Typical recycled content is 45%.
Manufacturability6
1.4922's machinability is fair (40/100, better than 72% of stainless steel grades); weldability poor (30/100); 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. 1.4922 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1.4922
Is 1.4922 easy to machine?
Machine in the annealed or +QT700 state with rigid setups, sharp carbide tooling, low-to-moderate speed and generous coolant; work-hardening and gummy chips above ~28 HRC.
Can 1.4922 be welded?
Weldable with matched 12Cr-Mo-V filler (or Ni-base for dissimilar joints) but requires 300–400 °C preheat/interpass, no cooling below Ms before PWHT, and 730–760 °C tempering to restore toughness.
Can 1.4922 be formed, bent or molded?
Hot form at 1100–850 °C followed by slow cool/anneal; cold forming is limited to gentle bends in the annealed condition.
1.4922 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 | 0.17 – 0.23 | 0.2 |
| Si | 0.1 – 0.5 | 0.3 |
| Mn | 0.3 – 0.8 | 0.55 |
| P | ≤ 0.03 | |
| S | ≤ 0.02 | |
| Cr | 10 – 12.5 | 11.3 |
| Mo | 0.8 – 1.2 | 1 |
| Nicontrols delta ferrite / toughness | 0.3 – 0.8 | 0.55 |
| V | 0.25 – 0.35 | 0.3 |
| Fe | balance |
What surface finishes work on 1.4922?
Takes a good ground/polished finish; passivation or light chrome/nitride treatment improves wet-service rust resistance, and shot peening is common on blade roots.
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 1.4922 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- X20CrMoV11-1
- Similar grades
- 1Cr11MoV
How much does 1.4922 cost?
1.4922 is a premium-cost stainless steel ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
1.4922 — frequently asked
What is 1.4922 used for?
1.4922 is typically used for steam turbine rotors and blades, high-temperature bolts, boiler components and power plant valves. In short: best-machining 12Cr creep steel; proven turbine rotor grade; service to 565 °C.
What is the yield strength of 1.4922?
1.4922 has a typical yield strength of 560 MPa (81.2 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 85% of stainless steel grades. Strength varies by condition: see the 6 listed tempers.
Is 1.4922 easy to machine?
Not especially — machinability is rated fair (40/100, better than 72% of stainless steel grades). Machine in the annealed or +QT700 state with rigid setups, sharp carbide tooling, low-to-moderate speed and generous coolant; work-hardening and gummy chips above ~28 HRC.
Can 1.4922 be welded?
Not readily — weldability is rated poor (30/100). Weldable with matched 12Cr-Mo-V filler (or Ni-base for dissimilar joints) but requires 300–400 °C preheat/interpass, no cooling below Ms before PWHT, and 730–760 °C tempering to restore toughness.
What surface finishes work on 1.4922?
Takes a good ground/polished finish; passivation or light chrome/nitride treatment improves wet-service rust resistance, and shot peening is common on blade roots.
Can 1.4922 be formed, bent or molded?
Hot form at 1100–850 °C followed by slow cool/anneal; cold forming is limited to gentle bends in the annealed condition.
What is the maximum service temperature of 1.4922?
1.4922 is rated for continuous use to about 565°C (1,049 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does 1.4922 cost?
1.4922 is a premium-cost stainless steel ($$$), 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
- DIN 17175 — Seamless tubes of heat-resistant steels (X20CrMoV12-1) — DIN (1979)
- EN 10302 — Creep resisting steels, nickel and cobalt alloys — CEN (2008)
- EN 10222-2 — Steel forgings for pressure purposes: ferritic and martensitic steels with specified elevated temperature properties — CEN (2021)
- GB/T 1221 — Heat-resisting steel bars (1Cr11MoV) — SAC (2007)
- ASM Handbook Vol. 1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
- ASM Handbook Vol. 13B — Corrosion: Materials — ASM International (2005)
- X20CrMoV11-1 (1.4922) heat-resisting steel data sheet — European special steel producer (2020)
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.