EN 1.7709 / 21CrMoV5-7 Steel Supplier UAE – Properties, Composition, Equivalents & Applications
What is 1.7709 / 21CrMoV5-7 Steel?
EN 1.7709, technically designated as 21CrMoV5-7 alloy steel, represents the gold standard for high-temperature fasteners and components in power generation and petrochemical industries. When you engineer systems that must endure extreme heat without deformation, selecting the right material is not just a choice—it is a safety imperative.
21CrMoV5-7 alloy steel is a heat-resistant, creep-resistant ferritic-bainitic steel. Engineers specifically design this grade for components subjected to temperatures up to 540°C–550°C. Its primary characteristic is exceptional creep rupture strength, making it superior to standard chromium-molybdenum steels for long-term service under load.
You will typically find 1.7709 steel in steam turbines, boiler plants, and pressure vessel applications where components face constant stress at elevated temperatures. Unlike standard structural steels that lose significant strength above 400°C, 21CrMoV5-7 maintains its structural integrity, ensuring that bolts, nuts, and turbine blades do not elongate or fail catastrophically over time.
For EPC contractors in the UAE and GCC region, where refinery and power plant projects demand materials that withstand harsh operating cycles, sourcing certified 21CrMoV5-7 is critical for operational longevity.
21CrMoV5-7 Chemical Composition
21CrMoV5-7 Mechanical Properties
EN 1.7709 Physical Properties
EN 1.7709 Equivalent Grades & Standards
High-Temperature & Creep Resistance
Heat Treatment of 21CrMoV5-7
Fabrication, Welding & Machining
Available Forms & Product Types
Applications of 21CrMoV5-7
Comparison: 21CrMoV5-7 vs. P22 vs. P91
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Our Superior Steels
Nifty Alloys LLC supplies 1.7709 (21CrMoV5-7) alloy steel, a high-temperature chromium-molybdenum-vanadium steel known for its excellent creep resistance, high strength at elevated temperatures, and good toughness. It is widely used in power plants, pressure vessels, boilers, steam turbines, and high-temperature piping systems. We stock 1.7709 / 21CrMoV5-7 plates, sheets, pipes, tubes, bars, and custom-cut sizes with EN 10204 3.1 certification. As a trusted material stockist and distributor, we deliver across the UAE, Saudi Arabia, Qatar, Kuwait, Bahrain, and Oman, with global export capabilities. Contact us today to buy 1.7709 / 21CrMoV5-7 steel in the UAE at competitive prices and reliable delivery.
