Alloy Steel Bars, Rods & Wires Supplier & Manufacturer
Alloy Steel Bar Suppliers | Alloy Steel Round Bars | Alloy Steel Rods | Alloy Steel Wire Manufacturers | Alloy Steel Bar Grades | Alloy Steel Bar Manufacturers
Amardeep Steel is a leading alloy steel bar supplier and alloy steel round bar manufacturer offering a comprehensive range of alloy steel bars, rods and wires for demanding industrial applications worldwide. Our products comply with ASTM A182, ASME SA 182, ASTM A276, and ASME SA 276 standards, making them suitable for high-pressure, high-temperature, and corrosion-prone environments.
Alloy steel bars are solid cylindrical or rectangular pieces of alloy steel produced in a range of sizes and grades. They offer significantly improved
mechanical properties compared to standard carbon steel bars, including enhanced strength, hardness, toughness, and resistance to wear and corrosion. The specific combination of alloying elements such as chromium, molybdenum, nickel, vanadium, and manganese determines the final performance profile of each bar.
Available in both hot-rolled alloy steel round bars and alloy steel bright bars, our products are used across manufacturing, heavy engineering, oil & gas, power generation, aerospace, and construction industries.
Alloy Steel Bar Grades
The grade of alloy steel bar is selected based on the mechanical and environmental demands of the application. Below are the most widely used grades:
Grade 4140 — Chromium-Molybdenum Steel
AISI 4140 is a chromium-molybdenum alloy steel offering excellent tensile strength, hardness, and fatigue resistance. It has a minimum yield strength of 80 ksi and minimum tensile strength of 100 ksi. Commonly used for manufacturing gears, shafts, fasteners, tool holders, spindles, and couplings. Also referred to as 42CrMo4 under DIN/EN standards.
Grade 4130 — Chromium-Molybdenum Steel
AISI 4130 is prized for its superior toughness and weldability, making it a preferred material for aircraft components, structural tubing, and motorsport applications. See our dedicated ASTM A519-Grade 4130 Tubing page for more details.
Grade 4340 — Nickel-Chromium-Molybdenum Steel
AISI 4340 delivers very high strength and excellent toughness. It is widely used in the production of gears, crankshafts, axles, and heavy-duty shafts. Also available as AISI 4340 Tubes on our website.
Grade 8620 — Nickel-Chromium-Molybdenum Steel
AISI 8620 offers a unique combination of strength, toughness, and wear resistance. It is widely employed for case-hardened components including gears, chain links, axles, and reamer bodies.
Grade 6150 — Chromium-Vanadium Steel
AISI 6150 provides outstanding fatigue strength and impact resistance. It is the preferred choice for high-stress applications including springs, gears, and shafts that are subjected to shock loading.
Grade AISI 4330V MOD
An advanced ultra-high-strength alloy steel designed for aerospace and defence applications. See our AISI 4330V MOD Round Bars page for full specifications.
Alloy Steel Bars, Rods & Wires Standard Specifications
|
Parameter |
Details |
|---|---|
|
Standard |
ASTM / ASME A/SA 182, ASTM A276, ASME SA276 |
|
Rods Range |
4 mm to 350 mm dia |
|
Wires Range |
0.5 mm to 10 mm dia |
|
Length |
100 mm to 6000 mm (Single Random, Double Random & Cut Length) |
|
Grade |
A-182 — F1, F5, F9, F11, F12, F21, F22 & F91 |
|
Diameter |
10 mm to 200 mm Diameter |
|
Form |
Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-Mesh, Billet, Ingot, Forging etc. |
|
Finish |
Rolled Black Bars, Bright Bars, Forged Bars, Polished Bars, 2B, 2D, BA, MAT |
|
Conditions |
Annealed, Hardened & Tempered, Precipitation Hardened |
Chemical Composition of Alloy Steel Round Bars
The following table shows the chemical composition (%) per grade for ASTM A182 alloy steel round bars:
|
Grade |
C |
Cr |
Mn |
Mo |
P |
S |
Si |
Ni |
|---|---|---|---|---|---|---|---|---|
|
F5 |
0.15 Max |
4.0–6.0 |
0.30–0.60 |
0.44–0.65 |
0.035 Max |
0.030 Max |
0.50 Max |
0.50 Max |
|
F1 |
0.15 Max |
3.0–5.0 |
0.30–0.60 |
0.40–0.50 |
0.035 Max |
0.030 Max |
0.50 Max |
0.50 Max |
|
F22 |
0.05–0.15 |
2.00–2.50 |
0.30–0.60 |
0.90–1.10 |
0.035 Max |
0.040 Max |
0.50 Max |
— |
|
F91 |
0.08–0.12 |
8.0–9.5 |
0.30–0.60 |
0.85–1.05 |
0.020 Max |
0.010 Max |
0.20–0.50 |
0.40 Max |
|
F9 |
0.15 Max |
8.0–10.0 |
0.30–0.60 |
0.90–1.10 |
0.030 Max |
0.030 Max |
0.50–1.00 |
— |
|
F11 |
0.10–0.20 |
1.00–1.50 |
0.40–0.65 |
0.44–0.65 |
0.025 Max |
0.040 Max |
0.50–0.80 |
— |
Mechanical Properties of ASTM A182 Alloy Steel Round Bars
|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% (MPa) min |
Elongation (% in 50mm) min |
|---|---|---|---|
|
F5 |
485 |
275 |
20 |
|
F9 |
415 |
205 |
30 |
|
F11 |
415 |
205 |
20 |
|
F22 |
415 |
205 |
20 |
|
F91 |
585 |
415 |
20 |
Equivalent Grades of Alloy Steel Round Bars
Cross-reference between ASTM A182 alloy steel grades and international standards (DIN, UNS):
|
Grade |
ASTM A182 |
DIN |
UNS |
Common Name |
|---|---|---|---|---|
|
F5 |
ASTM A182 F5 |
1.7362 |
K41545 |
5Cr–0.5Mo |
|
F9 |
ASTM A182 F9 |
1.7386 |
K90941 |
9Cr–1Mo |
|
F11 |
ASTM A182 F11 |
1.7335 |
K11597 |
1.25Cr–0.5Mo–Si |
|
F22 |
ASTM A182 F22 |
1.7380 |
K21590 |
2.25Cr–1Mo |
|
F91 |
ASTM A182 F91 |
1.4903 |
K90901 |
9Cr–1Mo–V |
Types of Alloy Steel Bars Available
We supply all standard profiles and finishes of alloy steel bars and rods:
Industry Applications of Alloy Steel Bars and Rods
Alloy steel round bars and rods from Amardeep Steel are used across a broad spectrum of industries:
- Oil & Gas — valves, flanges, high-pressure fittings
- Power Generation — boiler tubes, high-temperature piping
- Automotive & Heavy Engineering — gears, crankshafts, spindles, couplings, brake dies, trim dies, axles
- Aerospace & Defence — aircraft structural components, landing gear, actuator rods (Grade 4130, 4340, 4330V)
- Mining & Infrastructure — drill bits, reamer bodies, bolsters, tool holders
- Manufacturing — fixtures, chain links, fasteners, bolts, studs
- Construction — structural beams, reinforcement bars, anchor systems
Why Choose Amardeep Steel?
- ASTM / ASME / API certified with full mill test certificates (EN 10204-3.1 & 3.2)
- Diameter range 4mm to 350mm for bars; 0.5mm to 10mm for wires
- Lengths from 100mm to 6000mm in Single Random, Double Random & Cut Length options
- NABL approved lab testing, 100% Radiography, Third Party Inspection (TPI) available
- Export-grade wooden box / case packaging to prevent transit damage
- Custom Trademark, Grade, Size and Lot No. marking available on request
- Competitive pricing compared to high-alloy alternatives with equivalent performance
Related Products
- Alloy Steel Pipes & Tubes
- Alloy Steel Plates, Sheets & Coils
- Alloy Steel Forged Fittings
- Alloy Steel Buttweld Fittings
- Alloy Steel Flanges
- Alloy Steel Fasteners
- ASTM A335 Alloy P Seamless Pipes
- ASTM A213 Alloy T Seamless Tubes
- 4130 Alloy Tubing
- 4140 Alloy Tubing
- ASTM A519-Grade 4130 Tubing
- AISI 4330V MOD Round Bars
- AISI 4340 Tubes
Test Certificates & Quality Assurance
All alloy steel round bars and rods supplied by Amardeep Steel come with comprehensive test documentation:
- Manufacturer Test Certificate as per EN 10204-3.1 and EN 10204-3.2
- Raw Materials Certificate
- NABL Approved Lab Test Report
- 100% Radiography Test Report
- Third Party Inspection Report
Marking & Packing
All ASTM A182 alloy steel round bars are carefully packaged to prevent damage in transit. For export orders, standard export packaging in wooden boxes or cases is used. Each bar is marked with the Company Trademark (Logo), Grade, Size, and Lot Number. Custom marking is available on request.
Frequently Asked Questions - Alloy Steel Bars
What are alloy steel bars?
Alloy steel bars are metal bars made by adding elements like chromium, molybdenum, nickel, and vanadium to improve strength, hardness, and corrosion resistance compared to carbon steel.
What are the common grades of alloy steel bars?
The most commonly used grades include 4130, 4140, 4340, 8620, F11, F22, and F91, each offering specific mechanical properties for different industrial applications.
What is the difference between 4130 and 4140 alloy steel?
4130 offers better weldability and toughness, while 4140 provides higher strength and hardness, making it suitable for heavy-duty components.
What industries use alloy steel rods and wires?
They are widely used in oil & gas, automotive, aerospace, power generation, construction, and heavy engineering industries.
What standards do alloy steel bars follow?
Alloy steel bars typically comply with ASTM A182, ASTM A276, ASME SA182, and ASME SA276 standards.
Do you provide test certificates with alloy steel bars?
Yes, all products come with EN 10204 3.1 / 3.2 mill test certificates along with third-party inspection reports if required.
Supply Destinations
Cities We Supply Alloy Steel Bars & Rods To
Coimbatore, Bangkok, Ahvaz, Cairo, Pune, Rajkot, Jaipur, Manama, Nagpur, Bengaluru, Petaling Jaya, Vung Tau, Moscow, Noida, Bogota, Atyrau, Al Khobar, Santiago, Geoje-si, Aberdeen, Chennai, Hanoi, Hyderabad, Caracas, Dubai, Kuala Lumpur, Secunderabad, Ahmedabad, Kolkata, Chandigarh, Tehran, Algiers, Bhopal, Navi Mumbai, Pimpri-Chinchwad, Edmonton, Milan, Faridabad, Calgary, Nashik, Toronto, Busan, Dammam, Dallas, Ho Chi Minh City, Kuwait City, Indore, Jeddah, New Delhi, Mexico City, Sharjah, Lagos, Doha, Los Angeles, Jakarta, Abu Dhabi, Ankara, Hong Kong, Thiruvananthapuram, Perth, Lahore, Rio de Janeiro, New York, Istanbul, Houston, Madrid, Seoul, Gurgaon, Vadodara, London, Kanpur, Melbourne, Sydney, Riyadh, Montreal, Mumbai, Muscat, Karachi, Colombo, Singapore, Ludhiana, Ulsan, Brisbane, Howrah, Thane, Jamshedpur, Al Jubail, Visakhapatnam and more.
Countries We Export Alloy Steel Bars & Rods To
USA, UK, UAE, Saudi Arabia, Australia, Canada, Germany, France, Italy, Singapore, Malaysia, South Africa, Brazil, Mexico, Japan, South Korea, Turkey, Netherlands, Spain, Belgium, Switzerland, Sweden, Norway, Denmark, Finland, Poland, Czech Republic, Romania, Greece, Portugal, Austria, Hungary, Bulgaria, Serbia, Croatia, Slovakia, Lithuania, Estonia, Ukraine, Russia, Kazakhstan, Azerbaijan, Iran, Iraq, Kuwait, Bahrain, Qatar, Oman, Jordan, Lebanon, Egypt, Algeria, Tunisia, Libya, Morocco, Nigeria, Ghana, Angola, Kenya, Zimbabwe, Bangladesh, Sri Lanka, Nepal, Vietnam, Thailand, Philippines, Indonesia, Taiwan, Hong Kong, China, India, Pakistan, New Zealand, Argentina, Chile, Colombia, Peru, Venezuela, Bolivia, Ecuador, and more.
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