What material grade is 1.4935 equivalent to?

What material is 1.4935?

Material 1.4935 (also known as X20CrMoWV12-1) is a high-temperature martensitic creep-resistant stainless steel. This material is specifically designed for components in thermal engines and power plants,such as steam turbine blades and fasteners and is capable of maintaining excellent creep strength at operating temperatures ranging from 580°C to 650°C (1076°F to 1202°F). Steel grade 1.4935 is frequently utilized in applications requiring high mechanical strength under high-temperature operating conditions; its usage typically adheres to the EN 10302 or EN 10088-1 standards.

 

What material grade is 1.4935 equivalent to?

Material grade 1.4935 (also known as X20Cr MoWV12-1) is primarily equivalent toAlSI 422 stainless steel. It is a martensitic, creep-resisting steel designed for high-temperature applications, with other designations including UNS S42200, SUH 616, and AISI616.

 

Chemical composition % of steel X20CrMoWV12-1 (1.4935): EN 10302-2008

C	Si	Mn	Ni	P	S	Cr	Mo	W	V
0.17 - 0.24	0.1 - 0.5	0.3 - 0.8	0.3 - 0.8	max 0.025	max 0.015	11 - 12.5	0.8 - 1.2	0.4 - 0.6	0.2 - 0.35

Mechanical properties of steel X20CrMoWV12-1 (1.4935)

Property	+QT700 Condition	+QT800 Condition
Tensile Strength (Rm, MPa)	700 – 850	800 – 950
0.2% Proof Strength (Rp0.2, MPa)	500	600
Elongation at Fracture (A, %)	15 – 16	14

 

physical properties for 1.4935 / X20CrMoWV12-1 steel:

Property	Value
Density	7.7 – 7.8 g/cm³
Melting Temperature	1420 – 1500 °C
Thermal Conductivity (at 20°C)	24 – 27 W/m·K
Specific Heat Capacity (at 20°C)	~460 J/kg·K
Electrical Resistivity (at 20°C)	~0.50 µΩ·m
Modulus of Elasticity (Young's Modulus)	~210 GPa
Coefficient of Thermal Expansion (20–100°C)	10.5 – 11.5 ×10⁻⁶ /K

 

What is the heat resistance of material 1.4935?

Material 1.4935 (X20CrMoWV12-1) is a highly heat-resistant martensitic stainless steel, commonly referred to as AISI 422, designed specifically for high-temperature service conditions reaching up to approximately 650°C (1202°F). This material exhibits excellent creep resistance and is typically recommended for continuous-operation environments with temperatures ranging from 580°C to 600°C.

1.4935 Stainless Steel: Strength & Durability

1.4935 stainless steel (X20CrMoWV12-1, AISI 422) is a martensitic high-temperature creep-resistant steel widely used in turbine blades, fasteners, and steam/gas turbine components with maximum operating temperatures reaching 650°C. Its tensile strength exceeds 600–700 MPa (the specific value depends on the tempering process).

1.4935 Stainless Steel Heat Treatment:

Quenching (Austenitizing): Heat to 1040°C (1900°F), followed by oil quenching or air cooling.
Martempering (Optional): Suitable for workpieces with complex shapes; designed to minimize distortion. Quench the workpiece into a hot bath at 340°C (650°F).
Tempering: Typically performed after the workpiece has cooled to room temperature.
Annealing: Heat to 730–780°C (1350–1430°F) and hold for 4 hours, followed by furnace cooling.
Forging: Perform within the temperature range of 1040–1175°C (1900–2150°F), followed by slow cooling.

 

Applications of 1.4935 Stainless Steel bar :

Power Generation: Turbine blades and rotors.
Energy Production: Fasteners, bolts, and components in steam boilers.
Industrial Use: Valves, pumps, and components in chemical engineering.

 

1.4935 Stainless Steel Round Bar Supplier

Gnee Stainless maintains long-term cooperative relationships with major domestic and international specialty steel manufacturers-such as Baosteel, Changcheng Special Steel, Fushun Special Steel, and various European mills. This enables us to guarantee the authenticity of our materials and the consistency of our batches. Furthermore, by maintaining a ready stock inventory, we can significantly shorten lead times to meet urgent project requirements.
We routinely conduct secondary inspections on incoming materials,including spectroscopic analysis and non-destructive testing to ensure they are free from internal cracks or inclusions and fully comply with international standards such as EN 10269 and EN 10302.

 

Click to Customize 1.4935 Steel Bar

1.4935 Stainless Steel Rod Specifications

Category	Details
Product Forms	Round Bars: The most common form, including black bars (hot rolled/forged) and bright bars (peeled, ground, or drawn). Hex Bars, Square Bars, Flat Bars: Designed to meet specific component requirements.
Size Range	Diameter typically ranges from 10 mm to over 500 mm (customized large forgings available).
Delivery Condition	Annealed or Quenched & Tempered (Q&T) condition to ensure specified hardness and mechanical properties.
Deep Processing Services	Precision Cutting: Fixed-length cutting (saw cutting). Surface Treatment: Polishing, centerless grinding, sandblasting, etc. Heat Treatment: Secondary heat treatment based on specific mechanical property requirements.
Quality Certification	Full Mill Test Certificate (MTC) provided, including chemical composition, tensile strength, impact energy, hardness, and ultrasonic testing (UT) reports.