At Adinox Overseas, we specialize in offering a premium range of 15-5 PH Round Bars, a high-performance precipitation hardening stainless steel ideal for demanding industrial applications. These round bars are manufactured according to the ASTM A564 Type 630 specification and are designated by the universal grade UNS S15500. Known for their superior mechanical properties, corrosion resistance, and excellent toughness, these round bars are the material of choice for critical applications across aerospace, marine, chemical, and petrochemical industries.

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The 15-5 PH stainless steel round bars feature a martensitic microstructure strengthened through precipitation hardening, delivering exceptional yield strength and hardness. This alloy maintains high strength and toughness in both longitudinal and transverse sections, a trait that makes it especially valuable in structural and high-load-bearing environments. At Adinox Overseas, we ensure precise dimensional tolerances, uniform grain structure, and enhanced machinability across all our bars, which undergo stringent quality checks throughout the manufacturing and heat treatment processes.

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These UNS S15500 round bars offer outstanding resistance to corrosion, particularly in mildly corrosive environments and atmospheres containing chlorides. The improved toughness and corrosion resistance over its predecessor 17-4 PH make 15-5 PH a more advanced and reliable option. The alloy also shows excellent response to various heat treatments, particularly the H900, H1025, and H1150 conditions, allowing customization of mechanical properties according to application requirements.

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We maintain a comprehensive inventory and can deliver 15-5 PH steel bars in annealed or aged conditions based on customer specifications. Our extensive logistic network ensures timely delivery across domestic and international markets, supporting a wide range of industries from OEMs to end-users. Adinox Overseas is committed to delivering stainless steel solutions that not only meet but exceed industry benchmarks. When you choose our 15-5 PH Round Bars, you invest in reliability, strength, and long-term value engineered to meet your toughest challenges.

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Specifications Of 15-5 PH Round Bars

Specification	ASTM A564 / ASME SA564
Standard	EN, DIN, JIS, ASTM, BS, ASME, AISI
Round Bars	Outside Diameter in the range of 4mm to 500mm
Bright Bars	Outside Diameter in the range of 4mm to 100mm
Hex Bars	18mm – 57mm (11/16″ to 2-3/4″)
Square Bars	18mm – 47mm (11/16″ to 1-3/4″)
Finish	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Length	1 to 6 Meters, Custom Cut Lengths
Form	Round, Square, Hex (A/F), Rectangle Etc.

Chemical Composition for 15-5 PH Round Bars

Grade	C	Mn	Si	P	S	Cr	Mo
SS 17-4PH	0.07 max	1.0 max	1.0 max	.07 max	.03 max	17.5 - 15.0	.05

Mechanical Properties Of 15-5 PH Round Bars

Ultimate Tensile Strength, psi	Yield Strength, psi	Elongation	Rockwell Hardness
160,000	145,000	5%	C35

Application Of Industries

Power Plants

Aerospace

Refineries

Construction

Oil & Gas

Sugar

Chemical

Petrochemical

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