15-5 PH Round Bars Manufacturer, Stockist and Exporter
15-5 PH Round Bars are widely recognized for their superior combination of strength, toughness, and corrosion resistance, making them ideal for demanding engineering applications. This precipitation-hardening stainless steel grade offers excellent mechanical stability across a variety of environments, especially where high strength-to-weight ratios are required. Industries such as aerospace, petrochemical, and marine rely on these bars for components that must endure extreme conditions. With a uniform microstructure produced through advanced melting processes, 15-5 PH provides consistent performance. Its enhanced transverse properties offer greater reliability in high-stress operations. Users appreciate its ability to be heat treated for different strength levels. Overall, it stands out as a premium choice for high-performance stainless steel applications.
Manufacturers value 15-5 PH Round Bars due to their versatility in machining, forming, and welding processes. Despite its high hardness potential, the alloy maintains good machinability in both solution-treated and aged conditions. This makes it easier for fabricators to achieve tight tolerances and precise surface finishes. The bars are commonly used in shafts, fasteners, valves, and fittings that require both durability and dimensional accuracy. The alloy’s low carbon content helps prevent carbide precipitation, enhancing its corrosion resistance even after fabrication. Engineers rely on its stable properties for components exposed to fluctuating loads. With reliable heat treatment adaptability, it remains a preferred grade in critical production environments.
15-5 PH stainless steel offers exceptional corrosion resistance, surpassing many conventional martensitic grades while providing impressive strength. Its chromium-nickel composition, along with controlled copper additions, enhances resistance to stress-corrosion cracking. This is especially valuable in marine environments or chemical processing units where exposure to chloride-rich media is common. The alloy maintains stability in mildly acidic and mildly alkaline environments, reducing the risk of premature degradation. Its uniform microstructure helps prevent localized corrosion issues such as pitting or crevice corrosion. Users in offshore operations favor this grade for its durability under constant moisture exposure. These performance indicators make it a trusted material for long-term service conditions.
Worldwide 15-5 PH Round Bars Manufacturer, Stockist and Exporter
Heat treatment plays a crucial role in developing the final properties of 15-5 PH Round Bars. The material is typically supplied in solution-treated (H1150 or H900) conditions, allowing engineers to select the exact mechanical behavior required. Each heat-treating stage enhances strength, hardness, and resistance to fatigue, enabling the bars to perform under cyclic loading. When aged at lower temperatures, the alloy achieves its peak strength level. Higher-temperature aging provides improved toughness, especially in larger diameters. This flexibility allows manufacturers to design components with targeted performance characteristics. The predictable hardening response ensures uniformity across batches, a key requirement for critical aerospace and medical components.
Industries choose 15-5 PH Round Bars because they offer an excellent balance of weldability and high-performance characteristics. Although care must be taken to avoid hydrogen contamination, the alloy welds effectively using standard fusion techniques. Post-weld heat treatment further enhances its mechanical properties. These capabilities allow complex assemblies to be fabricated without compromising structural integrity. Components such as pump shafts, turbine blades, and heavy-duty fasteners often depend on the alloy’s reliable performance. Designers appreciate its ability to maintain strength even after machining or welding operations. Overall, these bars are a dependable solution for high-strength stainless steel engineering.
In manufacturing environments, 15-5 PH Round Bars are admired for their ease of forming and ability to maintain structural reliability. Cold working can be performed before aging to enhance strength further. This makes the alloy ideal for precision-engineered parts requiring tight dimensional control. Its low distortion after heat treatment ensures minimal post-processing corrections. The bars maintain excellent toughness at both ambient and elevated temperatures, supporting use in temperature-variable systems. Industries such as oil & gas and mechanical engineering rely on its predictable response to fabrication processes. This combination of strength, ductility, and dimensional stability contributes greatly to its popularity.
15-5 PH Round Bars continue to be a preferred choice for modern high-strength stainless steel applications due to their remarkable reliability and versatility. Their combination of corrosion resistance, heat treatability, and excellent mechanical properties ensures long-lasting performance in critical environments. Engineers trust the alloy for use in demanding sectors where material failure is not an option. The bars deliver consistent results even under fluctuating loads and harsh environmental conditions. Their metallurgical stability makes them suitable for precision manufacturing. Companies across aerospace, defense, marine, and industrial sectors rely heavily on this grade. As a result, 15-5 PH remains one of the most dependable precipitation-hardening stainless steels available today.
15-5 PH Round Bars Specifications
| Specification | Typical Value / Range | Units / Notes |
|---|---|---|
| Material designation | 15-5 PH (precipitation-hardening stainless steel) | UNS: S15500 (common designation) |
| Condition / Tempers | Solution treated (A), H900, H1025, H1075, H1150, H900T (typical commercial tempers) | Mechanical properties depend strongly on temper |
| Tensile strength (UTS) | ≈ 850 – 1250 | MPa (varies with temper and heat treatment) |
| Yield strength (0.2% offset) | ≈ 620 – 1100 | MPa (depends on temper) |
| Elongation (A in 50 mm or 2") | ≈ 8 – 20 | % (lower for high-strength tempers) |
| Hardness (typical) | HRC ≈ 26 – 42 | Rockwell C (depends on temper) |
| Density | ≈ 7.8 | g/cm³ (≈ 7800 kg/m³) |
| Modulus of Elasticity (approx.) | ≈ 200 | GPa |
| Thermal conductivity (approx.) | ≈ 14 – 20 | W / (m·K) — depends on temp |
| Typical diameter range (round bars) | Ø 6 mm — Ø 200 mm (custom sizes available) | Metric; imperial sizes also common |
| Surface finish (common) | Hot-rolled, cold-drawn (CD), turned & polished | Specify finish when ordering for tolerance/fit |
| Typical applications | Aircraft components, shafts, fittings, valves, springs, nuclear & petrochemical parts | Where corrosion resistance + high strength are required |
| Notes / Quality | Values shown are typical ranges. Final values must be verified by mill cert / test report for each heat/lot. | Request hardness, tensile, chemical analysis and heat-treat details from supplier |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 14.0 – 15.5 |
| Nickel (Ni) | 3.5 – 5.5 |
| Copper (Cu) | 2.5 – 4.5 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 1.0 |
| Carbon (C) | ≤ 0.07 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
| Niobium + Tantalum (Nb + Ta) | 0.15 – 0.45 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Condition (Temper) | Typical Value | Units |
|---|---|---|---|
| Tensile Strength (UTS) | H900 | 1310 | MPa |
| Tensile Strength (UTS) | H1025 | 1170 | MPa |
| Yield Strength (0.2% offset) | H900 | 1170 | MPa |
| Yield Strength (0.2% offset) | H1025 | 965 | MPa |
| Elongation (in 50 mm) | H900 | 10 | % |
| Elongation (in 50 mm) | H1025 | 12 | % |
| Reduction of Area | H900 | 45 | % |
| Reduction of Area | H1025 | 50 | % |
| Hardness | H900 | 40 – 44 | HRC |
| Hardness | H1025 | 33 – 38 | HRC |
| Modulus of Elasticity | — | 200 | GPa |
| Density | — | 7.8 | g/cm³ |
Dimensions
| Diameter (mm) | Diameter (inch) | Tolerance (Typical) | Condition |
|---|---|---|---|
| 6 mm | 0.236" | ±0.10 mm | Cold Drawn |
| 8 mm | 0.315" | ±0.10 mm | Cold Drawn |
| 10 mm | 0.394" | ±0.10 mm | Cold Drawn |
| 12 mm | 0.472" | ±0.12 mm | Cold Drawn / Peeled |
| 16 mm | 0.630" | ±0.12 mm | Cold Drawn / Turned |
| 20 mm | 0.787" | ±0.15 mm | Hot Rolled / Turned |
| 25 mm | 0.984" | ±0.15 mm | Hot Rolled |
| 30 mm | 1.181" | ±0.20 mm | Hot Rolled |
| 40 mm | 1.575" | ±0.25 mm | Hot Rolled |
| 50 mm | 1.969" | ±0.30 mm | Hot Rolled |
| 60 mm | 2.362" | ±0.35 mm | Hot Rolled |
| 75 mm | 2.953" | ±0.40 mm | Hot Rolled |
| 100 mm | 3.937" | ±0.50 mm | Hot Rolled |
| 125 mm | 4.921" | ±0.60 mm | Hot Rolled |
| 150 mm | 5.906" | ±0.80 mm | Hot Rolled |
| 200 mm | 7.874" | ±1.00 mm | Hot Rolled / Forged |
Equivalent Grades
| Standard | Equivalent Grade | Description / Notes |
|---|---|---|
| UNS | S15500 | General designation for 15-5 PH stainless steel |
| AMS | AMS 5659 / AMS 5862 | Aerospace-grade specifications for bars, forgings, and plates |
| ASTM | ASTM A564 / A693 | Standard specification for precipitation-hardening stainless bars and plates |
| ASME | ASME SA564 | Pressure vessel–related standard |
| EN / DIN | 1.4545 | European equivalent grade (X5CrNiCu15-5) |
| W.Nr | 1.4545 | Werkstoffnummer for 15-5 PH |
| AFNOR | Z5CND15-5 | French standard designation |
| BS | — | No direct identical grade; similar to EN 1.4545 |
Weight Chart (Approx.)
| Diameter (mm) | Weight (kg/m) |
|---|---|
| 6 mm | 0.22 |
| 8 mm | 0.39 |
| 10 mm | 0.62 |
| 12 mm | 0.89 |
| 16 mm | 1.58 |
| 20 mm | 2.47 |
| 22 mm | 2.98 |
| 25 mm | 3.85 |
| 28 mm | 4.83 |
| 30 mm | 5.55 |
| 32 mm | 6.32 |
| 36 mm | 7.99 |
| 40 mm | 9.87 |
| 45 mm | 12.48 |
| 50 mm | 15.41 |
| 55 mm | 18.66 |
| 60 mm | 22.19 |
| 65 mm | 26.01 |
| 70 mm | 30.16 |
| 75 mm | 34.61 |
| 80 mm | 39.37 |
| 90 mm | 49.40 |
| 100 mm | 61.60 |
| 125 mm | 96.25 |
| 150 mm | 138.60 |
| 200 mm | 246.50 |
The applications of our 15-5 PH round bars include oil & gas projects, chemical processing plants, desalination systems, shipbuilding, aerospace, automotive, and heavy engineering. With superior resistance to oxidation and stress corrosion cracking, our bars perform reliably in extreme environments. Whether it is for large-scale infrastructure projects in Mumbai or precision engineering in Germany and the USA, Shakti Forge India remains the first choice for industries that demand excellence.
As one of the most reliable 15-5 PH Round Bars Manufacturer, Stockist and Exporter, Shakti Forge India continues to expand its presence in domestic and international markets. Our focus on quality, timely delivery, and customer satisfaction makes us a preferred partner for leading industries across the globe. For bulk requirements or customized solutions, Shakti Forge India ensures the highest level of product integrity and service excellence.
Frequently Asked Questions (FAQs)
- Q1: What is 15-5 PH stainless steel?
- 15-5 PH is a precipitation-hardening stainless steel known for high strength, excellent toughness, and good corrosion resistance. It is commonly used in aerospace, petrochemical, and mechanical components requiring high mechanical performance.
- Q2: What are the available heat treatment conditions?
- 15-5 PH Round Bars are available in conditions such as H900, H1025, H1075, H1150, and solution-treated (Condition A). Each condition offers different mechanical properties based on required strength and toughness.
- Q3: Does 15-5 PH have good corrosion resistance?
- Yes, 15-5 PH stainless steel provides corrosion resistance similar to 17-4 PH. It resists atmospheric corrosion, mild chemical environments, and many industrial media.
- Q4: What industries use 15-5 PH Round Bars?
- Major industries include aerospace, marine, oil & gas, petrochemicals, chemical processing, paper industries, nuclear components, and general engineering applications.
- Q5: Are 15-5 PH Round Bars machinable?
- Yes, 15-5 PH is machinable, especially in the solution-treated (Condition A) state. Machinability decreases in higher-strength tempers like H900 due to increased hardness.
Cities we have supplied our products to
Mumbai, Delhi, Bengaluru(Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla, Veraval,Kovvur, Andra Pradesh,Karwar, Karnataka,Kosamba, Gujarat, Vishakapatnam, Shahad, Pondicherry, Kakkinada, Pradesh, Nagda, Madhya Pradesh,Harihar, Karnataka, Tuticorin, Tamilnadu, Trivandrum, KeralaKurnool, Rourkela, Hindupur, Orissa, Renukoot, Uttar Morbi, Kerala ,Himachal, Dehradun, Visakhapatnam ,Jamnagar, Kozhikode, Ludhiana,Latur, Nanded, Vijaywada, Alwar, Bareilly, Bikaner, Andheri, Marol, Taloja, Turbhe, TTC (Thane-Belapur), Pimpri-Chinchwad, Chakan, Talegaon, Ranjangaon, Jejuri, Baramati, Satpur, Ambad, Sinnar, Igatpuri, Shendra, Waluj, Chikalthana, Paithan, Hingna, Butibori, Kalmeshwar, Umred, Shiroli, Kagal, Gokul Shirgaon, Akkalkot, Chincholi, Lote-Parshuram, Dombivli, Ambernath, Mahad, Roha, Palghar, Tarapur (Boisar)
Cities we have supplied our products to
South Korea, Africa, Sri Lanka, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen, France, Germany, Greece, Oman, Colombia, Portugal, Japan, Lithuania, Macau, Mongolia, Qatar, Ireland, Malaysia, Bangladesh, Russia, Iran, Jordan, Singapore, Bulgaria, Poland, Denmark, Nigeria, Gambia, Indonesia, Finland, Argentina, Chile, Spain, Peru, Kuwait, India, Saudi Arabia, Slovakia, Slovenia, Sweden, Switzerland, Bahrain, the Netherlands, United Kingdom, Mexico, Bulgaria, Spain, France, Germany, Colombia, Brazil, Saudi Arabia, Iraq, Iran, Sudan, Libya, Tanzania, Nigeria, New Zealand, Paris, Switzerland
Applications of 15-5 PH Round Bars
- Oil & Gas Industry – pipelines, offshore rigs, valves, and fittings
- Chemical Processing Plants – heat exchangers, reactors, and storage vessels
- Marine & Shipbuilding – propeller shafts, seawater systems, and pumps
- Aerospace – jet engines, turbine blades, and structural components
- Power Generation – nuclear plants, boilers, and steam generators
- Automotive – exhaust systems, sensors, and performance parts
- Pharmaceutical & Food Industry – equipment requiring hygiene and corrosion resistance
- Construction & Infrastructure – high-strength fasteners, joints, and supports