The Metal Alloy Encyclopedia
Explore 765+ alloys with detailed properties, 6-axis ratings, composition data, and side-by-side comparisons.
765+
Alloys
10+
Families
14
Metal Bases
12+
Applications
Today's Alloy
DIN 1.4021 Stainless Steel X20Cr13 Material Properties Equivalent Composition
Stainless Steel
Featured Alloys
View all →1.0037 Material St37-2 Steel Equivalent, Properties, Composition, DIN 17100
Steel1.0570 Material St52-3 Steel Equivalent, Properties Composition – DIN 17100
Steel1.4104 Stainless Steel X14CrMoS17 Material Properties Equivalent, QT650
Stainless SteelStainless Steel
1.7147 Material 20MnCr5 Steel Equivalent, Properties, Composition
Steel1.7225 Material 42CrMo4 +QT Steel Chemical Composition, Equivalent, Properties
SteelAlloy Steel
18/8 Stainless Steel Properties, Yield Strength, Composition, Density, Tensile Strength, Hardness
Stainless SteelStainless Steel
2024 Aluminum Properties, Alloy AA2024 2024T3, 2024T351, 2024T4 Sheet, Plate & Tube
AluminumAluminum Alloy
(20Cr13) 2Cr13 Stainless Steel Equivalent, Properties & Chemical Composition
Stainless SteelStainless Steel
20CrMo Steel Equivalent, Chemical Composition, Mechanical Properties
SteelAlloy Steel
25CrMo Steel Chemical Composition, Mechanical Properties, Equivalent
Steel2Cr13 vs 3Cr13 Steel, What is the Difference? Compared
Steel304 Stainless Steel Properties: SS304 Composition, Density, Yield Strength, Thermal Conductivity, Hardness, Modulus of Elasticity
Stainless SteelStainless Steel
Browse by Family
View all →Alloy Steel
Steel
Steel alloyed with elements like chromium, molybdenum, or vanadium to enhance strength, hardness, or toughness beyond plain carbon steel.
Aluminum Alloy
Aluminum
Aluminum combined with copper, magnesium, silicon, or zinc to improve strength and machinability while retaining low density.
Bearing Steel
Steel
High-carbon, high-chromium steel engineered for extreme hardness, wear resistance, and fatigue life in rolling-element bearings.
Carbon Steel
Steel
Iron-carbon alloy where carbon content (0.05–2.1%) primarily determines hardness and tensile strength. The most widely produced steel type.
Copper Alloy
Copper
Copper combined with tin (bronze), zinc (brass), or other elements to improve corrosion resistance, conductivity, or machinability.
High-Entropy Alloy (MPEA)
Other
Multi-principal element alloys with 5+ elements in near-equiatomic ratios.
Nickel Alloy
Nickel
Nickel-based alloys known for exceptional heat and corrosion resistance, widely used in aerospace turbines and chemical processing.
Spring Steel
Steel
Medium-to-high carbon steel with high yield strength, allowing it to flex repeatedly under load and return to its original shape.
Stainless Steel
Stainless Steel
Iron-carbon alloy containing at least 10.5% chromium, which forms a passive oxide layer that resists corrosion and staining.
Structural Steel
Steel
Carbon-manganese steel produced in standard shapes (I-beam, angle, channel) for load-bearing construction and infrastructure applications.
Browse by Metal
Applications
View all →Aircraft Structural Components
Aerospace
Alloys used in fuselage frames, wing skins, and primary structural members of commercial and military aircraft. These components demand exceptional strength-to-weight ratios and fatigue resistance to withstand repeated pressurization cycles.
Jet Engine Components
Aerospace
High-temperature alloys for turbine blades, compressor discs, and combustion chambers in gas turbine engines. Materials must maintain mechanical integrity at temperatures exceeding 1,000°C while resisting oxidation and creep.
Aerospace Fasteners
Aerospace
High-strength bolts, rivets, and fittings used to join aircraft structures. Aerospace fasteners must meet strict specifications for shear strength, fatigue life, and corrosion resistance in demanding service environments.
Automotive Body Panels
Automotive
Sheet metal alloys formed into hoods, doors, fenders, and structural panels for passenger vehicles. Modern body panels balance formability, dent resistance, and weight reduction to improve fuel efficiency and crash performance.
Engine & Drivetrain
Automotive
Alloys for engine blocks, crankshafts, camshafts, and transmission gears. These components operate under high stress, elevated temperatures, and cyclic loading, requiring excellent wear resistance and dimensional stability.
Exhaust Systems
Automotive
Heat-resistant alloys for exhaust manifolds, catalytic converter housings, and mufflers. These parts endure cyclic thermal stress up to 900°C and exposure to corrosive exhaust gases containing sulfur and nitrogen compounds.
Structural Steel
Construction
Alloys rolled into beams, columns, and load-bearing frameworks for buildings and bridges. Structural steel must meet minimum yield strength requirements while maintaining ductility for seismic resistance and ease of fabrication.
Reinforcing Bar (Rebar)
Construction
Steel bars embedded in concrete to provide tensile reinforcement in buildings, bridges, and infrastructure. Rebar alloys are specified by grade for yield strength and must bond effectively with surrounding concrete.
Architectural Cladding
Construction
Alloy sheets and panels used as facade cladding, curtain walls, and decorative building elements. Architectural alloys combine aesthetic finish quality with long-term weathering resistance and low maintenance requirements.
Ship Hull Plating
Marine
Corrosion-resistant alloys for hull structures, deck plating, and superstructure of ships and boats. Marine hull materials must resist saltwater corrosion, biofouling, and the mechanical stresses of wave impact over decades of service.
Marine Propellers
Marine
Alloys cast or forged into propellers, shafts, and underwater fittings for marine vessels. Propeller alloys must resist cavitation erosion, seawater corrosion, and fatigue from continuous rotational loading in harsh marine environments.
Offshore Platforms
Marine
Heavy-duty alloys for oil rig structures, subsea pipelines, and platform supports in offshore energy extraction. These materials face combined challenges of saltwater immersion, high pressures, sour gas exposure, and cathodic protection compatibility.
Engineering Tools
Interactive calculators and selectors to help you find the right alloy.
Material Selector
Input your requirements — strength, corrosion resistance, weight, and application — to get recommended alloys.
Alloy Comparator
Compare two alloys side by side — mechanical properties, ratings, composition, and best use cases.
Weldability Checker
Check if an alloy is weldable and get carbon equivalent (CE) analysis for steel grades.
Corrosion Resistance Finder
Find alloys that resist specific corrosive environments — saltwater, acids, high temperature oxidation, and more.
Hardness Converter
Convert between Brinell (HB), Rockwell (HRC/HRB), Vickers (HV), and approximate tensile strength using ASTM E140.
Stress-Strain Calculator
Calculate engineering and true stress-strain from force, area, and elongation measurements.
Thermal Expansion Calculator
Calculate dimensional change due to temperature. Input length, CTE, and temperature change.
Beam Deflection Calculator
Calculate maximum deflection for simply supported and cantilever beams with common load cases.
Fatigue Life Estimator
Estimate fatigue life (cycles to failure) using Basquin's equation from stress amplitude and material constants.
Metal Weight Calculator
Calculate the weight of metal shapes — plate, round bar, tube, square bar, and hex bar — from dimensions and density.
Carbon Equivalent Calculator
Calculate carbon equivalent (CE) for steel weldability assessment using IIW and Pcm formulas.
Strength-to-Weight Calculator
Calculate specific strength (strength-to-weight ratio) for material comparison in weight-critical applications.
Bolt Torque Calculator
Calculate recommended tightening torque for bolts based on size, grade, and lubrication condition.
Engineering Unit Converter
Convert common engineering units: MPa to ksi, mm to inches, g/cm³ to lb/in³, and more.
Metallurgical Temp Converter
Convert temperatures between °C, °F, K, and °R with color reference for steel heat treatment.
Density Converter
Convert density between g/cm³, kg/m³, lb/in³, and lb/ft³ for material specifications.
Steel Grade Identifier
Look up a steel grade designation to find its properties, equivalent grades in other standards, and common uses.
Drill & Tap Size Chart
Find the correct drill bit size for tapping metric and imperial threads. Includes tap drill and clearance hole sizes.
Composition Analyzer
Analyze an alloy's chemical composition. See element breakdown, identify the alloy family, and compare to specifications.
Heat Treatment Guide
Get heat treatment parameters for common steel grades — annealing, normalizing, quenching, and tempering temperatures.