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…

DIN 1.4021 Stainless Steel X20Cr13 Material Properties Equivalent Composition

Stainless Steel

Featured Alloys

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Applications

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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Material Selector

Input your requirements — strength, corrosion resistance, weight, and application — to get recommended alloys.

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Alloy Comparator

Compare two alloys side by side — mechanical properties, ratings, composition, and best use cases.

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Weldability Checker

Check if an alloy is weldable and get carbon equivalent (CE) analysis for steel grades.

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Corrosion Resistance Finder

Find alloys that resist specific corrosive environments — saltwater, acids, high temperature oxidation, and more.

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Hardness Converter

Convert between Brinell (HB), Rockwell (HRC/HRB), Vickers (HV), and approximate tensile strength using ASTM E140.

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Stress-Strain Calculator

Calculate engineering and true stress-strain from force, area, and elongation measurements.

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Thermal Expansion Calculator

Calculate dimensional change due to temperature. Input length, CTE, and temperature change.

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Beam Deflection Calculator

Calculate maximum deflection for simply supported and cantilever beams with common load cases.

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Fatigue Life Estimator

Estimate fatigue life (cycles to failure) using Basquin's equation from stress amplitude and material constants.

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Metal Weight Calculator

Calculate the weight of metal shapes — plate, round bar, tube, square bar, and hex bar — from dimensions and density.

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Carbon Equivalent Calculator

Calculate carbon equivalent (CE) for steel weldability assessment using IIW and Pcm formulas.

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Strength-to-Weight Calculator

Calculate specific strength (strength-to-weight ratio) for material comparison in weight-critical applications.

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Bolt Torque Calculator

Calculate recommended tightening torque for bolts based on size, grade, and lubrication condition.

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Engineering Unit Converter

Convert common engineering units: MPa to ksi, mm to inches, g/cm³ to lb/in³, and more.

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Metallurgical Temp Converter

Convert temperatures between °C, °F, K, and °R with color reference for steel heat treatment.

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Density Converter

Convert density between g/cm³, kg/m³, lb/in³, and lb/ft³ for material specifications.

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Steel Grade Identifier

Look up a steel grade designation to find its properties, equivalent grades in other standards, and common uses.

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Drill & Tap Size Chart

Find the correct drill bit size for tapping metric and imperial threads. Includes tap drill and clearance hole sizes.

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Composition Analyzer

Analyze an alloy's chemical composition. See element breakdown, identify the alloy family, and compare to specifications.

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Heat Treatment Guide

Get heat treatment parameters for common steel grades — annealing, normalizing, quenching, and tempering temperatures.