660 Stainless Steel Round Bars Manufacturer, Stockist and Exporter

660 Stainless Steel Round Bars, also known as Inconel 660, are high-performance nickel-chromium alloy bars widely used in extreme environments. These round bars exhibit exceptional resistance to oxidation, corrosion, and high temperatures, making them ideal for aerospace, chemical processing, and marine applications. They maintain their strength and structural integrity even at elevated temperatures. The alloy’s ability to withstand thermal cycling and creep makes it suitable for critical components like turbine shafts and heat exchangers. Manufacturers offer these bars in a range of diameters and lengths to suit different industrial needs. The precise machining and surface finish of 660 round bars ensure ease of fabrication. Overall, these bars are recognized for their reliability in demanding conditions.

The key advantage of 660 Stainless Steel Round Bars is their outstanding mechanical properties at high temperatures. They retain excellent tensile strength and hardness even after prolonged exposure to heat. The alloy provides superior resistance to pitting and stress corrosion cracking compared to conventional stainless steels. Its composition also allows good weldability and workability, though care must be taken during fabrication to prevent cracking. These bars are commonly used in gas turbines, nuclear reactors, furnace components, and chemical processing equipment. Their durability reduces maintenance requirements and extends the service life of critical parts. Industries prefer 660 round bars where consistent performance under harsh conditions is a priority.

660 Stainless Steel Round Bars offer exceptional corrosion resistance due to the presence of nickel, chromium, and iron in their composition. Chromium contributes to the formation of a protective oxide layer, while nickel enhances resistance to acidic and alkaline media. This makes the alloy suitable for chemical plants, offshore structures, and desalination equipment. Additionally, 660 round bars resist oxidation in high-temperature environments up to 1200°F (650°C). They can withstand exposure to sulfuric acid, phosphoric acid, and other corrosive substances. The alloy’s high creep and fatigue resistance also make it an excellent choice for structural components in high-stress applications. Overall, their performance ensures safety and reliability in aggressive environments.

Worldwide 660 Stainless Steel Round Bars Manufacturer, Stockist and Exporter

In terms of fabrication, 660 Stainless Steel Round Bars can be machined using standard cutting tools, though higher speeds and specialized techniques may be required due to the alloy’s hardness. They are also suitable for cold and hot forming operations, including bending, forging, and rolling. Post-fabrication heat treatment may be applied to relieve internal stresses and enhance mechanical properties. Surface finishing techniques like polishing, grinding, and passivation can improve corrosion resistance and aesthetic appeal. The alloy’s combination of strength, ductility, and thermal stability ensures versatility in manufacturing. Engineers often select 660 round bars when both structural integrity and resistance to harsh conditions are critical. These factors contribute to their widespread use in high-end industrial applications.

660 Stainless Steel Round Bars are available in a variety of dimensions to meet diverse industrial requirements. Standard diameters range from small precision bars to large structural bars used in heavy machinery. Lengths are typically customizable, with cut-to-size options available from suppliers. Tolerances are tightly controlled to ensure precision in assembly and operation. The bars can be supplied in hot-rolled, cold-rolled, or forged conditions depending on application requirements. Their uniform grain structure and smooth surface finish allow for efficient machining and fabrication. The availability of multiple grades ensures that manufacturers can select bars optimized for temperature, corrosion, or mechanical demands.

660 Stainless 660 Stainless Round Bars

Applications of 660 Stainless Steel Round Bars are extensive due to their high-performance characteristics. They are commonly used in aerospace components, jet engines, and gas turbine parts where high-temperature strength is essential. In chemical processing, they are used in reactors, heat exchangers, and pressure vessels. Marine and offshore applications benefit from the alloy’s resistance to seawater corrosion. Power generation industries use these bars for boiler and furnace components. The combination of mechanical strength, corrosion resistance, and thermal stability ensures reliability in critical systems. Maintenance costs are reduced, and operational efficiency is enhanced, making 660 round bars a preferred choice for engineers worldwide.

Suppliers of 660 Stainless Steel Round Bars provide quality assurance through certifications and testing. Chemical composition analysis, mechanical property verification, and dimensional inspections are standard. The bars conform to ASTM, ASME, and other international standards to guarantee performance in demanding applications. Documentation such as mill test reports (MTRs) ensures traceability and compliance with industrial specifications. Proper storage and handling of the bars prevent surface contamination and preserve corrosion resistance. By choosing certified 660 round bars, industries can ensure long-term performance, safety, and reliability of their critical components. Overall, these bars represent a high-value investment for challenging engineering applications.

660 Stainless Steel Round Bars Specifications

Property Specification
Alloy Type Nickel-Chromium Alloy
Standard ASTM B564, AMS 5662, ASME SB564
Form Round Bars
Diameter Range 6 mm to 250 mm (custom sizes available)
Length 1 m to 6 m (cut-to-size available)
Finish Hot Rolled, Cold Rolled, Polished
Heat Treatment Annealed, Solution Treated
Density 8.19 g/cm³
Maximum Service Temperature 650°C (1200°F)
Applications Aerospace, Chemical, Marine, Power Generation, Turbine Components

Chemical Composition

Element Composition (%)
Nickel (Ni) 72.0 – 76.0
Chromium (Cr) 14.0 – 17.0
Cobalt (Co) 1.0 – 2.0
Molybdenum (Mo) 0.5 – 1.0
Iron (Fe) Balance (~7%)
Carbon (C) ≤ 0.15
Manganese (Mn) ≤ 0.5
Silicon (Si) ≤ 0.5
Sulfur (S) ≤ 0.015
Phosphorus (P) ≤ 0.015

Mechanical Properties

Property Value Unit
Tensile Strength (Ultimate) 790 – 1,050 MPa
Yield Strength (0.2% Offset) 275 – 550 MPa
Elongation (in 50 mm) 30 – 50 %
Hardness (Brinell) 180 – 220 HB
Modulus of Elasticity 205 GPa
Poisson's Ratio 0.31 -
Shear Strength 480 – 620 MPa
Service Temperature Up to 650 °C

Dimensions

Diameter (mm) Diameter (inch) Standard Length (mm) Standard Length (inch)
6 0.236 1000 – 3000 39 – 118
10 0.394 1000 – 3000 39 – 118
16 0.630 1000 – 3000 39 – 118
20 0.787 1000 – 3000 39 – 118
25 0.984 1000 – 3000 39 – 118
32 1.260 1000 – 3000 39 – 118
40 1.575 1000 – 3000 39 – 118
50 1.969 1000 – 6000 39 – 236
60 2.362 1000 – 6000 39 – 236
80 3.150 1000 – 6000 39 – 236
100 3.937 1000 – 6000 39 – 236
150 5.906 1000 – 6000 39 – 236
200 7.874 1000 – 6000 39 – 236
250 9.843 1000 – 6000 39 – 236

Equivalent Grades

Standard Equivalent Grade / Designation
ASTM B564, B670
ASME SB564, SB670
UNS N06660
EN / DIN 2.4665
ISO NiCr22Fe20Mo
JIS NS660
Nickel Institute INCONEL 660

Weight Chart (Approx.)

Diameter (mm) Weight per Meter (kg/m) Diameter (inch) Weight per Foot (lbs/ft)
6 0.23 0.236 0.16
10 0.62 0.394 0.42
16 1.57 0.630 1.06
20 2.46 0.787 1.66
25 3.85 0.984 2.59
32 6.31 1.260 4.25
40 9.81 1.575 6.61
50 15.4 1.969 10.38
60 22.1 2.362 14.91
80 43.9 3.150 29.63
100 76.8 3.937 51.81
150 172.8 5.906 116.5
200 307.7 7.874 207.4
250 480.9 9.843 324.2

The applications of our 660 Stainless Steel 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 660 Stainless Steel 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 660 Stainlesser satisfaction makes us a preferred partner for leading industries across the globe. For bulk requirements or 660 Stainlessized solutions, Shakti Forge India ensures the highest level of product integrity and service excellence.

Frequently Asked Questions (FAQs)

Q:1What is 660 Stainless Steel?
660 Stainless Steel, also known as Inconel 660 or UNS N06660, is a high-performance nickel-chromium alloy known for excellent corrosion resistance and high-temperature strength.
Q:2What are the key applications of 660 Stainless Steel Round Bars?
These round bars are commonly used in aerospace components, gas turbines, chemical processing equipment, marine environments, and power generation systems.
Q:3What standards do 660 Stainless Steel Round Bars conform to?
They conform to ASTM B564, ASME SB564, AMS 5662, and international equivalents such as UNS N06660 and EN 2.4665.
Q:4What are the typical sizes available?
Diameters typically range from 6 mm to 250 mm, with lengths from 1 m to 6 m. Custom sizes are available on request.
Q:5Can 660 Stainless Steel Round Bars be welded?
Yes, they can be welded using suitable techniques and filler materials, but care must be taken to prevent cracking due to high nickel content.

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 660 Stainless Steel 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