EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel
X2CrNiMoV13-5-2 (1.4413) EN 10088 Martensitic Stainless Steel – Complete Datasheet
Official datasheet for X2CrNiMoV13-5-2 (1.4413) martensitic corrosion‑resisting stainless steel to EN 10088‑1/‑2. Includes chemical composition, mechanical properties at room temperature, physical constants, international equivalent grades, and application guidance for plates and coils.
Welding, machining, hot forming, heat treatment (quenching + tempering)
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EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Introduction
X2CrNiMoV13-5-2 (numerical designation 1.4413) is a low‑carbon martensitic stainless steel containing nickel, molybdenum and vanadium, standardised in EN 10088‑1. The alloy is supplied in the quenched and tempered (QT) condition and combines high mechanical strength with good corrosion resistance, especially in chloride‑containing environments. Its low carbon content ensures adequate weldability for a martensitic grade, while the balanced alloying elements provide excellent toughness even at sub‑zero temperatures. Typical products are hot‑rolled plates, coils and bars primarily used in aerospace, offshore and general engineering. The steel is widely employed for structural components, shafts, gears and valve parts where both high strength and durability are required.
EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Chemical composition
The chemical limits are defined in EN 10088‑1:2014 for grade X2CrNiMoV13‑5‑2 (1.4413). The low carbon content ensures martensitic hardenability while retaining sufficient ductility and weldability. Molybdenum and vanadium enhance resistance to pitting and improve high‑temperature strength.
| Element | Standard value (%) | Remarks |
|---|---|---|
| Carbon (C) | ≤ 0.03 | Max. 0.03 % |
| Silicon (Si) | ≤ 0.50 | Max. 0.50 % |
| Manganese (Mn) | ≤ 0.50 | Max. 0.50 % |
| Phosphorus (P) | ≤ 0.040 | Max. 0.040 % |
| Sulfur (S) | ≤ 0.015 | Max. 0.015 % |
| Chromium (Cr) | 12.0 – 14.0 | Range |
| Nickel (Ni) | 4.5 – 6.0 | Range |
| Molybdenum (Mo) | 1.5 – 2.5 | Range |
| Vanadium (V) | 0.20 – 0.40 | Range |
| Nitrogen (N) | ≤ 0.020 | Max. 0.020 % |
EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Typical physical properties
Physical constants are typical for a tempered martensitic stainless steel with 13 % Cr and 5 % Ni. Thermal conductivity and specific heat are valid at room temperature; thermal expansion refers to the range 20–100 °C. These values help in design calculations for components exposed to thermal cycling.
| Property | Value | Unit | Test condition |
|---|---|---|---|
| Density (ρ) | 7.7 | g/cm³ | at 20 °C |
| Elastic modulus (E) | 215 | GPa | at 20 °C |
| Shear modulus (G) | 83 | GPa | calculated from E and ν |
| Poisson's ratio (ν) | 0.29 | — | at 20 °C |
| Thermal expansion coefficient (α) | 10.5 | 10⁻⁶/K | 20 – 100 °C |
| Thermal expansion coefficient (α) | 11.0 | 10⁻⁶/K | 20 – 200 °C |
| Thermal conductivity (λ) | 25 | W/(m·K) | at 20 °C |
| Specific heat capacity (cp) | 460 | J/(kg·K) | at 20 °C |
| Electrical resistivity (ρe) | 0.70 | Ω·mm²/m | at 20 °C |
EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Mechanical properties at room temperature
Strength and toughness data are extracted from EN 10088‑2:2014, table for martensitic steels in the quenched and tempered condition (QT). Values apply to plate/coil with longitudinal specimens. The alloy exhibits very high strength while retaining a minimum elongation and good impact energy, even at sub‑zero temperatures. For transverse direction, elongation values are typically 2 % lower.
| Property | Standard requirement | Unit | Test condition |
|---|---|---|---|
| Yield strength (Rp0.2) | ≥ 700 | MPa | Thickness t ≤ 50 mm |
| Yield strength (Rp0.2) | ≥ 650 | MPa | 50 mm < t ≤ 100 mm |
| Tensile strength (Rm) | 900 – 1100 | MPa | t ≤ 50 mm |
| Tensile strength (Rm) | 850 – 1050 | MPa | 50 mm < t ≤ 100 mm |
| Elongation after fracture (A) | ≥ 10 | % | t ≤ 50 mm, L0 = 5.65√S0 |
| Elongation after fracture (A) | ≥ 10 | % | 50 mm < t ≤ 100 mm, L0 = 5.65√S0 |
| Impact energy (KV) | ≥ 27 | J | ‑40 °C, longitudinal Charpy‑V |
| Bend test (mandrel diameter) | No cracks | Bend angle 180°, d = 3t (t ≤ 10 mm) |
EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Internationally equivalent standards and potential substitutes
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| USA | ASTM A240 / A240M | UNS S41425 (13Cr‑5Ni‑Mo‑V) | Closest match; intended for similar applications. Exact limits may differ slightly. |
| USA | AMS 5629 | Similar 13Cr‑5Ni‑Mo‑V | Aerospace material specification, often used for bar and forging. |
| Germany (also EU) | EN 10088‑2 / EN 10088‑1 | 1.4413 (X2CrNiMoV13‑5‑2) | The base standard. |
| France (historic) | AFNOR | Z5 CNDV 13‑05 | Older French designation for a similar composition. |
EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Application Introduction
X2CrNiMoV13‑5‑2 is selected for components that require a combination of high strength, good corrosion resistance in mild to moderate chloride environments, and reliable toughness at low temperatures. It can be welded using standard procedures for martensitic steels, usually with preheating and post‑weld heat treatment. Typical delivery condition is quenched and tempered; the alloy cannot be work‑hardened to the same extent as austenitic grades. Due to its magnetic nature it is also used where magnetic properties are needed.
Product Applications: Helicopter main rotor components, Pump shafts and wear rings, High‑strength bolting and studs, Valve trims and stems, Marine propeller shafts, Compressor discs and blades
Processed into products: Aircraft landing gear structural parts, Hydraulic cylinder rods, High‑pressure flange bolts, Cryogenic valve components, Gears and splined shafts, Fasteners for offshore platforms
Application industries: Aerospace (helicopter rotors, structural frames), Oil and gas (pump shafts, valve bodies, downhole components), Marine and offshore (propeller shafts, fasteners), Power generation (compressor blades, steam turbine parts), Hydraulic systems (cylinders, pistons)
EN 10088-1 X2CrNiMoV13-5-2 Stainless Steel Materials with similar performance and potential substitutes
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| EU | EN 10088‑1 | X3CrNiMo13‑4 (1.4313) | Slightly higher carbon, lower Mo and V; commonly used for similar applications but lower strength. |
| EU | EN 10088‑1 | X4CrNiMo16‑5‑1 (1.4418) | Higher Cr and Mo content, used when superior corrosion resistance is needed; comparable strength. |
| USA | ASTM A564 / A705 | 13‑8 Mo (UNS S13800) | Precipitation‑hardening martensitic stainless steel; very high strength but higher alloy cost. |
| Japan | JIS G4304 | SUS630 (17‑4PH) | Precipitation hardening; often used as an alternative when higher strength or different hardening mechanism is acceptable. |
Notes:
Heat treatment: Austenitize at 950–1050 °C, oil or air quench, then temper at 550–620 °C (air cool). Temper selection depends on required strength/toughness combination.
Welding: Preheat to 100–200 °C, use matching or slightly over‑alloyed filler (e.g., 13Cr‑Ni‑Mo type). Post‑weld heat treatment at the original tempering temperature is recommended to restore toughness.
Corrosion resistance: Comparable to 1.4313 (13‑4) but improved due to Mo and V addition. Good resistance to atmospheric corrosion, many organic chemicals and mildly acidic environments. Not recommended for strong reducing acids.
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