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Model No: AMS5659 15-5 PH

AMS 5659 15-5 PH Stainless Steel Bar

ZYTC Alloy supplies AMS5659 15-5 PH stainless steel bar in solution heat treated condition. ISO 9001 and AS 9120B certified, offering vacuum melted, precipitation hardening bars with high temperature strength, excellent corrosion resistance, and competitive factory pricing.
Delivery :
FOB
minimum order :
50 kilograms
Supply Ability :
5000kilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
Contact Now

As an ISO 9001 and AS 9120B certified manufacturer and supplierZYTC Alloy offers AMS5659 15-5 PH stainless steel bar in a full range of sizes, shapes, and tempers – ready for immediate shipment at competitive factory-direct prices.

AMS 5659 specification covers a corrosion-resistant steel (15-5 PH / UNS S15500) in the form of bars, wire, forgings, flash welded rings, and extrusions in the solution heat treated condition, up to 12 inches (305 mm) in nominal diameter, and stock of any size for forging, flash welded rings, or extruding.


15-5 PH is a precipitation-hardenable martensitic stainless steel strengthened by copper-rich precipitates during aging. The alloy is available in solution heat treated (Condition A) and various aged conditions (H950, H1025, H1050, H1100, H1150). The solution treated condition provides a softer, workable state, while aging develops high strength.

  • Available Forms: Bar (round, flat, hex), wire, forgings, flash welded rings, extrusions, forging stock

  • Size Limit: Up to 12 inches (305 mm) nominal diameter; maximum cross-sectional area 144 in² (930 cm²)

  • Specifications: AMS 5659, ASTM A564, UNS S15500, AMS 5862 (sheet/plate), AMS 5928 (wire)


Applications

  • Aerospace: Aircraft structural components, landing gear parts, engine components, high-strength fasteners

  • Oil & Gas: Downhole tools, wellhead equipment, valve components (NACE MR0175)

  • Nuclear: Reactor components, pump shafts, valve stems

  • Chemical Processing: High-strength pump and valve components

  • General Industrial: Gears, shafts, fittings, molds, dies, structural hardware


Chemical Composition of AMS5659 15-5 PH Stainless Steel 

Chemical Composition (Weight %)15-5 PH Specification
Chromium (Cr)14.0 - 15.5
Nickel (Ni)3.5 - 5.5
Copper (Cu)2.5 - 4.5
Manganese (Mn)1.00 max.
Silicon (Si)1.00 max.
Carbon (C)0.07 max.
Phosphorus (P)0.040 max.
Sulfur (S)0.030 max.
Niobium + Tantalum (Cb+Ta)0.15 - 0.45
Iron (Fe)Balance
Physical PropertiesMetricImperial
Density7.78 g/cm³0.281 lb/in³
Melting Range1400 - 1450°C2550 - 2640°F
Modulus of Elasticity200 GPa29.0 × 10⁶ psi
Coefficient of Expansion (20-100°C)10.8 µm/m·°C6.0 µin/in·°F
Thermal Conductivity16.4 W/m·K114 BTU·in/hr·ft²·°F
Mechanical Properties (Solution Heat Treated – Condition A)MetricImperial
Tensile Strength (max.)1100 MPa160 ksi
Yield Strength (0.2% offset, max.)480 MPa70 ksi
Elongation (min.)10%10%
Mechanical Properties (Aged Conditions – Minimum)H950H1025H1050H1100H1150
Tensile Strength (ksi)190170160145130
Yield Strength (ksi)180160150130110
Elongation (%)1212121515
Reduction of Area (%)3540455050

Solution Heat Treatment & Precipitation Hardening Characteristics

AMS5659 specifies delivery in the solution heat treated condition (Condition A). In this state, the material is soft, ductile, and readily machinable or cold formed.

After final component fabrication, a single low-temperature precipitation hardening (aging) cycle develops the desired mechanical properties. Typical tempers include:

TemperAging TemperatureTypical Tensile Strength (ksi)Hardness (HRC)
H 900900°F (482°C)190 – 21040 – 47
H 925925°F (496°C)185 – 20038 – 45
H 10251025°F (552°C)170 – 18535 – 43
H 10501050°F (566°C)160 – 17532 – 40
H 10751075°F (580°C)150 – 16531 – 38
H 11001100°F (593°C)140 – 15528 – 35
H 11501150°F (621°C)130 – 14525 – 32

Unlike conventional martensitic grades, 15-5 PH achieves high strength without distortion or scaling, making it ideal for precision components.


Get a Factory Price Quote Today

Whether you need solution treated bar for further aging, or pre-aged stock for immediate use, ZYTC Alloy delivers AMS5659 15-5 PH stainless steel with full certification and rapid worldwide shipping.

📞 Contact our sales team

📧 Email: daisy@zytcsteel.com
📲 WhatsApp: +86 17335753350