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15 5ph

All You Need to Know About 15-5PH Stainless Steel Bar

15-5PH stainless steel bar, also known as 15-5 round bar, is a martensitic precipitation-hardening stainless steel recognized for its combination of high strength, toughness, and excellent corrosion resistance. Containing approximately 15% chromium and 5% nickel, this alloy is widely used across aerospace, defense, oil & gas, and construction industries.

Key Properties of 15-5PH Stainless Steel

  • High Strength & Hardness – Delivers exceptional tensile strength and wear resistance, even in demanding environments.
  • Corrosion Resistance – Performs reliably in marine, chemical, and industrial applications where exposure to corrosive elements is common.
  • Heat Treatable – A single low-temperature heat treatment enhances transverse toughness, ductility, and forgeability, especially in larger cross-sections.
  • Machinability – Can be machined effectively in a variety of thermal conditions, improving production efficiency.

Chemical Composition of 15-5PH Stainless Steel

The alloying elements that give 15-5PH its strength and corrosion resistance include:

  • Chromium: 14.00 – 15.50%
  • Nickel: 3.50 – 5.50%
  • Copper: 2.50 – 4.50%
  • Columbium + Tantalum: 0.15 – 0.45%
  • Manganese: 1.00% max
  • Silicon: 1.00% max
  • Carbon: 0.07% max
  • Sulfur: 0.030% max
  • Phosphorus: 0.040% max

Applications of 15-5PH Stainless Steel Bar

Thanks to its mechanical performance and corrosion resistance, 15-5PH bar stock is widely used in:

  • Aerospace structural components
  • Valves, gears, and shafts
  • Nuclear reactor components
  • Oil & gas equipment
  • Construction beams and reinforced concrete structures

Partner with Mozaic Precision Metals

At Mozaic Precision Metals, we supply high-quality 15-5PH stainless steel bar in various sizes and finishes. Our precision services—including grinding, polishing, cutting, and chamfering—ensure every bar meets the strictest standards of accuracy and performance.

For projects requiring strength, durability, and resistance to corrosion, 15-5PH stainless steel from Mozaic is a proven, cost-effective solution.

 

The Versatile Steel: 15-5 PH Stainless Steel Bar

15-5 PH stainless steel is a precipitation-hardening alloy prized for its toughness, fatigue strength, and machinability. Its unique combination of durability and corrosion resistance makes it a trusted choice across industries such as aerospace, automotive, oil and gas, construction, and food processing.

Industrial Applications of 15-5 Stainless Steel Bar

  • Automotive: Engine gears, bolts, nuts, and crankshafts requiring strength and wear resistance.
  • Oil & Gas: Spindles, couplings, and mechanical parts that must withstand high stress and corrosion.
  • Construction & Engineering: Structural parts, rods, fixtures, and fittings designed for heavy-duty performance.
  • Manufacturing: Wire forms, shafts, and precision components requiring machinability and toughness.
  • Food Processing: Components for commercial kitchens and restaurants, valued for hygiene, corrosion resistance, and durability under frequent use.

 

Key Benefits of 15-5 PH Stainless Steel

  • Corrosion Resistance: Withstands wear, scratching, and exposure to moisture and chemicals.
  • High Strength: Maintains toughness even under heavy loads and repeated stress cycles.
  • Machinability: Easily fabricated into complex shapes while maintaining dimensional stability.
  • Temperature Resistance: Performs reliably under elevated heat, making it suitable for food and industrial applications.
  • Versatility: Available in multiple sizes and lengths, making it adaptable for small-scale components or large structural applications.

15-5 PH Stainless Steel from Mozaic Precision Metals

At Mozaic Precision Metals, we supply premium-quality 15-5 PH stainless steel round bar tailored to meet the needs of industries requiring strength, machinability, and corrosion resistance. Whether for aerospace parts, food-grade equipment, or precision manufacturing, our bars are processed with ISO-informed practices to ensure consistency and performance.