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20NiCrMo2 (SAE/ ASTM/ AISI 8620) – 1.6523 / DIN EN 10084 Steel
20NiCrMo2-2 (SAE/ASTM/AISI 8620 – DIN EN 10084) steel is a low-carbon alloy steel preferred especially for carburizing processes due to its high strength, excellent toughness, and superior hardenability. Thanks to alloying elements such as nickel (Ni), chromium (Cr), and molybdenum (Mo), this steel offers a balanced performance between surface hardness and core strength. It is widely used in industries requiring high strength and wear resistance such as automotive, machinery, and aerospace sectors. On this page, you can find comprehensive information about the meaning of the 20NiCrMo2-2 steel codes, its standard equivalents, mechanical and chemical properties, application areas, and the advantageous price offers provided by Hasçelik.
• 20: Represents the approximate carbon (C) percentage in the steel. This steel contains about 0.20% carbon. The low carbon content indicates its suitability for surface hardening treatments.
• Ni: Indicates the presence of nickel as an alloying element. Nickel increases toughness and ductility of the steel.
• Cr: Signifies the presence of chromium. Chromium enhances wear resistance and hardness and also improves corrosion resistance.
• Mo: Shows the presence of molybdenum in the steel composition. Molybdenum increases strength at high temperatures and improves hardenability.
• 2-2: These numbers represent approximate proportions of alloying elements or a modified variant. 20NiCrMo2-2 is a type with enhanced performance among alloyed carburizing steels.
20NiCrMo2-2 steel is known for its equivalents with similar chemical composition and mechanical properties across various international standards. This ensures compatibility and standardization in global projects and supply chains. The most common equivalents and their standard designations are:
• EN: 20NiCrMo2-2
• DIN EN 10084: 1.6523
• SAE / AISI: 8620
• UNE: 20NiCrMo2
• AFNOR: 20NCD2
• ASTM: A29 Grade 8620
These standards guarantee conformity in terms of chemical composition, mechanical properties, and manufacturing processes. Particularly, 8620 steel is one of the most widely used alloyed carburizing steels worldwide. Hasçelik’s 20NiCrMo2-2 grade not only meets all these standard requirements but also offers high precision and reliability in production and quality control processes.
After carburizing, 20NiCrMo2-2 steel provides high surface hardness and strength while maintaining adequate toughness and ductility in the core. This balanced mechanical performance makes it preferred for heavily loaded parts such as gears, shafts, and axles. Its key mechanical properties generally include:
• Ultimate Tensile Strength: Approximately 700 – 900 MPa
• Yield Strength: Approximately 400 – 600 MPa
• Elongation at Break: Between 14% and 20%, indicating good ductility
• Hardness (post-carburizing surface hardness): Typically reaches 58-62 HRC (Rockwell C)
• Impact Strength (Charpy V-notch): High toughness, reducing the risk of fracture in the steel parts
• Hardenability: High hardenability allows the surface to harden while keeping the core softer and resistant to shocks
Thanks to modern production techniques and precise quality control applied by Hasçelik, consistency and reliability of these mechanical values are ensured at the highest level.
The chemical composition of 20NiCrMo2-2 steel, with specific alloying element ratios, determines its hardening, strength, and toughness characteristics. This composition is optimized for carburizing processes. According to Hasçelik standards, the typical chemical content ranges are:
• Carbon (C): 0.18% – 0.23%
• Silicon (Si): 0.15% – 0.35%
• Manganese (Mn): 0.50% – 0.80%
• Nickel (Ni): 0.70% – 1.00%
• Chromium (Cr): 0.90% – 1.20%
• Molybdenum (Mo): 0.15% – 0.30%
• Phosphorus (P): Maximum 0.035%
• Sulfur (S): Maximum 0.035%
These alloying elements, especially Ni, Cr, and Mo, support surface hardening while increasing core strength, enabling the production of high-performance parts. Harmful elements like phosphorus and sulfur are kept at minimum levels to enhance ductility and machinability.
Due to its high strength, superior hardenability, and excellent toughness, 20NiCrMo2-2 steel is preferred for manufacturing critical parts across many industries. Its main application areas include:
• Automotive Industry: Ideal for shafts, gears, axles, crankshafts, and other engine and transmission parts requiring high strength.
• Machinery Manufacturing: Used in heavy-duty machine components, gearboxes, bearings, and press equipment subjected to demanding conditions.
• Aerospace: Selected for critical components requiring high strength and durability.
• Energy Sector: Applied in turbine shafts and other parts exposed to high temperature and loads.
• Agriculture and Construction Machinery: Used in manufacturing parts exposed to heavy loads and shocks.
This broad range of applications proves the robustness and durability of 20NiCrMo2-2 steel. Hasçelik supplies this alloy steel at high-quality standards and competitive prices.
At Hasçelik, we produce 20NiCrMo2-2 grade steel using modern steel mill infrastructure and process control systems compliant with international standards. To maximize metallurgical quality in production:
• Vacuum Degassing (VD) is applied to minimize dissolved gases inside the steel, resulting in a more homogeneous and durable structure.
• During finishing stages, crack inspections and thorough surface and internal structure examinations are meticulously performed.
Thus, Hasçelik’s 20NiCrMo2-2 products provide high performance and reliability both mechanically and microstructurally.
Factors Affecting Pricing
Our 20NiCrMo2-2 steel prices vary based on:
• Requested diameter and cross-section dimensions
• Product length
• Total order tonnage
• Special processes and heat treatments applied according to customer requirements
Certification and Documentation
Hasçelik’s 20NiCrMo2-2 steels are certified according to international standards and delivered with quality certificates. This ensures you receive a product you can trust confidently in your sector.
For the Most Accurate Offer
To receive the most accurate price offer tailored to your needs, simply share your product specifications and requirements with us.
You can quickly contact our sales team by emailing info@hascelik.com and receive your personalized offer promptly.
Products
20NiCrMo2 (SAE/ ASTM/ AISI 8620) – 1.6523 / DIN EN 10084 Steel
20NiCrMo2-2 (SAE/ASTM/AISI 8620 – DIN EN 10084) steel is a low-carbon alloy steel preferred especially for carburizing processes due to its high strength, excellent toughness, and superior hardenability. Thanks to alloying elements such as nickel (Ni), chromium (Cr), and molybdenum (Mo), this steel offers a balanced performance between surface hardness and core strength. It is widely used in industries requiring high strength and wear resistance such as automotive, machinery, and aerospace sectors. On this page, you can find comprehensive information about the meaning of the 20NiCrMo2-2 steel codes, its standard equivalents, mechanical and chemical properties, application areas, and the advantageous price offers provided by Hasçelik.
• 20: Represents the approximate carbon (C) percentage in the steel. This steel contains about 0.20% carbon. The low carbon content indicates its suitability for surface hardening treatments.
• Ni: Indicates the presence of nickel as an alloying element. Nickel increases toughness and ductility of the steel.
• Cr: Signifies the presence of chromium. Chromium enhances wear resistance and hardness and also improves corrosion resistance.
• Mo: Shows the presence of molybdenum in the steel composition. Molybdenum increases strength at high temperatures and improves hardenability.
• 2-2: These numbers represent approximate proportions of alloying elements or a modified variant. 20NiCrMo2-2 is a type with enhanced performance among alloyed carburizing steels.
20NiCrMo2-2 steel is known for its equivalents with similar chemical composition and mechanical properties across various international standards. This ensures compatibility and standardization in global projects and supply chains. The most common equivalents and their standard designations are:
• EN: 20NiCrMo2-2
• DIN EN 10084: 1.6523
• SAE / AISI: 8620
• UNE: 20NiCrMo2
• AFNOR: 20NCD2
• ASTM: A29 Grade 8620
These standards guarantee conformity in terms of chemical composition, mechanical properties, and manufacturing processes. Particularly, 8620 steel is one of the most widely used alloyed carburizing steels worldwide. Hasçelik’s 20NiCrMo2-2 grade not only meets all these standard requirements but also offers high precision and reliability in production and quality control processes.
After carburizing, 20NiCrMo2-2 steel provides high surface hardness and strength while maintaining adequate toughness and ductility in the core. This balanced mechanical performance makes it preferred for heavily loaded parts such as gears, shafts, and axles. Its key mechanical properties generally include:
• Ultimate Tensile Strength: Approximately 700 – 900 MPa
• Yield Strength: Approximately 400 – 600 MPa
• Elongation at Break: Between 14% and 20%, indicating good ductility
• Hardness (post-carburizing surface hardness): Typically reaches 58-62 HRC (Rockwell C)
• Impact Strength (Charpy V-notch): High toughness, reducing the risk of fracture in the steel parts
• Hardenability: High hardenability allows the surface to harden while keeping the core softer and resistant to shocks
Thanks to modern production techniques and precise quality control applied by Hasçelik, consistency and reliability of these mechanical values are ensured at the highest level.
The chemical composition of 20NiCrMo2-2 steel, with specific alloying element ratios, determines its hardening, strength, and toughness characteristics. This composition is optimized for carburizing processes. According to Hasçelik standards, the typical chemical content ranges are:
• Carbon (C): 0.18% – 0.23%
• Silicon (Si): 0.15% – 0.35%
• Manganese (Mn): 0.50% – 0.80%
• Nickel (Ni): 0.70% – 1.00%
• Chromium (Cr): 0.90% – 1.20%
• Molybdenum (Mo): 0.15% – 0.30%
• Phosphorus (P): Maximum 0.035%
• Sulfur (S): Maximum 0.035%
These alloying elements, especially Ni, Cr, and Mo, support surface hardening while increasing core strength, enabling the production of high-performance parts. Harmful elements like phosphorus and sulfur are kept at minimum levels to enhance ductility and machinability.
Due to its high strength, superior hardenability, and excellent toughness, 20NiCrMo2-2 steel is preferred for manufacturing critical parts across many industries. Its main application areas include:
• Automotive Industry: Ideal for shafts, gears, axles, crankshafts, and other engine and transmission parts requiring high strength.
• Machinery Manufacturing: Used in heavy-duty machine components, gearboxes, bearings, and press equipment subjected to demanding conditions.
• Aerospace: Selected for critical components requiring high strength and durability.
• Energy Sector: Applied in turbine shafts and other parts exposed to high temperature and loads.
• Agriculture and Construction Machinery: Used in manufacturing parts exposed to heavy loads and shocks.
This broad range of applications proves the robustness and durability of 20NiCrMo2-2 steel. Hasçelik supplies this alloy steel at high-quality standards and competitive prices.
At Hasçelik, we produce 20NiCrMo2-2 grade steel using modern steel mill infrastructure and process control systems compliant with international standards. To maximize metallurgical quality in production:
• Vacuum Degassing (VD) is applied to minimize dissolved gases inside the steel, resulting in a more homogeneous and durable structure.
• During finishing stages, crack inspections and thorough surface and internal structure examinations are meticulously performed.
Thus, Hasçelik’s 20NiCrMo2-2 products provide high performance and reliability both mechanically and microstructurally.
Factors Affecting Pricing
Our 20NiCrMo2-2 steel prices vary based on:
• Requested diameter and cross-section dimensions
• Product length
• Total order tonnage
• Special processes and heat treatments applied according to customer requirements
Certification and Documentation
Hasçelik’s 20NiCrMo2-2 steels are certified according to international standards and delivered with quality certificates. This ensures you receive a product you can trust confidently in your sector.
For the Most Accurate Offer
To receive the most accurate price offer tailored to your needs, simply share your product specifications and requirements with us.
You can quickly contact our sales team by emailing info@hascelik.com and receive your personalized offer promptly.
