Authorised Manufacturer Of Alloy Steel F5 Round Bar, Alloy Steel Round Bar with Length 1000mm to 6000mm & Thickness, 6mm 42crmo4 Cold Drawn Bar, Alloy Steel Centerless Ground Round Bars Manufacturer, Cut to length Alloy Steel Hot Rolled Bar Supplier.
Alloy Steel Round Bars are engineered for performance in demanding environments where strength, durability, and heat resistance are crucial. As a trusted manufacturer, supplier, and exporter, these alloy round bars are produced to meet global quality standards and are widely used across industries. Manufactured using advanced processes, they offer excellent surface finish, tight tolerances, and high mechanical strength.
These round bars are available in a wide range of diameters from 6mm to 120mm, with customized lengths and specifications based on application needs. They conform to international standards such as ASTM A182 and are offered in popular grades like A-182, F5, F9, F11, F12, F22 & F91. Depending on usage, bars can be supplied in hot-rolled, normalized, quenched and tempered, or cold-drawn conditions for enhanced performance and machinability. Due to their strength and wear resistance, Alloy Steel Round Bars are used in oil & gas, automotive, aerospace, construction, power generation, heavy machinery, and forging industries. Typical applications include gears, shafts, axles, spindles, fasteners, crankshafts, and other load-bearing components that are exposed to high pressure and dynamic forces.
The key advantages of alloy steel round bars include superior tensile strength, resistance to fatigue and corrosion, good weldability, and long operational life. They perform exceptionally well under extreme conditions, ensuring low maintenance, high reliability, and cost efficiency for mission-critical applications. Alloy steel round bars are composed of a blend of key alloying elements that enhance their mechanical and physical properties. Common chemical constituents include Carbon (C) for hardness and strength, Chromium (Cr) for corrosion resistance, Nickel (Ni) for toughness, Molybdenum (Mo) for improved high-temperature strength, Manganese (Mn) for wear resistance, and Silicon (Si) for oxidation resistance. Depending on the grade and standard, the percentages of these elements vary to meet specific application and performance requirements.
Alloy Steel Round Bar Stock Available in 10mm to 300mm Diameter & Custom Lengths Up to 12m, Buy ASTM A182 Alloy Steel F9 Forged Bar, 4140 Alloy Steel Bar at The Lowest Cost.
Alloy Steel Round Bars Specifications
| Specification | Details |
|---|---|
| Standards | ASTM A182, ASME SA182 |
| Grades Available | ASTM A 182 – F5, F9, F11, F12, F21, F22 & F91, 4130, 4140 |
| Types | Hot Rolled, Cold Drawn, Peeled & Polished, Centerless Ground, Forged, Black, Bright |
| Size Range (Diameter) | 5mm to 500mm Dia in 100mm to 6000mm Length |
| Length | 1000 mm Long To 6000 mm Long |
| Finish | Black, Bright, Polished, Centerless Ground |
| Thickenss | 0.5mm to 500mm Diameter |
| End Condition | Plain End, Beveled End, Threaded End |
| Manufacturing Process | Hot Rolled, Cold Drawn, Forged, Turned, Precision Machined |
| Heat Treatments | Annealed, Hardened & Tempered, Aged, Magnetic Annealed, Heat Treated |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Application Industries | Oil & Gas, Petrochemical, Power Generation, Marine, Aerospace, Construction, Automotive, Food Processing, Chemical Processing, Heavy Engineering |
Types of Alloy Steel Round Bars
Hot Rolled Round Bars
Manufactured by hot rolling, offering excellent strength and durability.
Cold Drawn Round Bars
Precision-made with a smooth surface finish, ideal for machining.
Peeled & Polished Round Bars
Enhanced surface finish with high dimensional accuracy
Centerless Ground Round Bars
Extremely precise tolerance with a fine, smooth surface.
Forged Round Bars
High-strength bars for heavy-duty industrial applications.
Bright Round Bars
High-quality, smooth surface bars used in precision applications.
Black Round Bars
Raw, unfinished bars used in industrial applications requiring further processing.
Equivalent of Alloy Steel Round Bars
| Grade | DIN standard | UNS designation | WERKSTOFF NR. |
|---|---|---|---|
| F5/ F5A | 12CrMo195 | K41545 | 1.7362 |
| F12 (CL2) | 16CrMo44 | – | – |
| F22 (CL3) | 10CrMo910 | K21590 | – |
| F9 | X12CrMo91 | K90941 | 1.7386 |
| F11 (CL2) | 13CrMo44 | K11572 | 1.7338 |
| F91 | X10CrMoVNb9-1 | – | – |
Chemical Composition of Alloy Steel Round Bars
| Element | Cr | C | Ni | Mo | Mn | S | P | Si |
|---|---|---|---|---|---|---|---|---|
| F1 | 3.0 to 5.0 | .15 Max | .50 Max | .40 to .50 | .30 to .60 | .030 Max | .035 Max | .50 Max |
| F5 | 4.0 to 6.0 | .15 Max | .50 Max | .44 to .65 | .30 to .60 | .030 Max | .035 Max | .50 Max |
| F9 | 8.0 to 1 .0 | .15 Max | to | .90 to 1.10 | .30 to .60 | .030 Max | .030 Max | .50 to 1.00 |
| F11 | 1.00 to 1.50 | .10 to .20 | to | .44 to .65 | .40 to .65 | .040 Max | .025 Max | .50 to .80 |
| F22 | 2.00 to 2.50 | .05 to .15 | to | .90 to 1.10 | .30 to .60 | .040 Max | .035 Max | .50 Max |
| F91 | 8.0 to 9.5 | .08 to .12 | .40 Max | .85 to 1.05 | .30 to .60 | .010 Max | .020 Max | .20 to .50 |
| Alloy steel round bar 42crmo4 | .90 to 1.20 % | .380 to .45 % | to | .15 to .30 % | .60 to .90 % | ≤ .035 % | ≤ .035 % | – |
Mechanical Properties of Alloy Steel Round Bars
| Grade | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min | Tensile Strength (ksi) min |
|---|---|---|---|
| F91 | 20 | 205 | 520 |
| F11 | 30 | 205 | 415 |
| F22 | 30 | 205 | 415 |
| F5 | 485 | 20 | 275 |
| F9 | 30 | 205 | 415 |
| F1 | 20 | 60 | 150 |
Sizes Chart of Alloy Steel Round Bars
| Size (mm) | Weight (kg/m) | Size (mm) | Weight (kg/m) | Size (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 25 x 25 | 4.292 | 50 x 50 | 17.168 | 12 x 12 | 0.989 |
| 21 x 21 | 3.029 | 42 x 42 | 12.114 | 9 x 9 | 0.556 |
| 34 x 34 | 7.939 | 70 x 70 | 33.65 | 17 x 17 | 1.985 |
| 36 x 36 | 8.9 | 75 x 75 | 38.629 | 18 x 18 | 2.225 |
| 19 x 19 | 2.479 | 38 x 38 | 9.916 | 7 x 7 | 0.337 |
| 26 x 26 | 4.642 | 53 x 53 | 19.29 | 13 x 13 | 1.161 |
| 30 x 30 | 6.181 | 60 x 60 | 24.723 | 15 x 15 | 1.545 |
| 22 x 22 | 3.324 | 45 x 45 | 13.906 | 10 x 10 | 0.687 |
| 28 x 28 | 5.384 | 55 x 55 | 20.774 | 14 x 14 | 1.346 |
| 24 x 24 | 3.956 | 48 x 48 | 15.822 | 11 x 11 | 0.831 |
| 20 x 20 | 2.747 | 40 x 40 | 10.988 | 8 x 8 | 0.44 |
| 32 x 32 | 7.032 | 65 x 65 | 29.015 | 16 x 16 | 1.758 |
Tolerance Chart for Alloy Steel Round Bars
| SIZE IN INCHES | SQUARE | ROUND | HEXAGON | OCTAGON |
|---|---|---|---|---|
| 15/16 | 2.988 | 2.347 | 2.588 | 2.479 |
| 11/16 | 1.607 | 1.262 | 1.392 | 1.333 |
| 7/8 | 2.603 | 2.045 | 2.254 | 2.159 |
| 45/64 | 1.681 | 1.320 | 1.456 | 1.394 |
| 31/32 | 3.191 | 2.506 | 2.763 | 2.646 |
| 23/32 | 1.756 | 1.380 | 1.521 | 1.487 |
| 1 | 3.400 | 2.670 | 2.945 | 2.820 |
| 1-1/8 | 4.303 | 3.380 | 3.727 | 3.569 |
| 29/32 | 2.792 | 2.193 | 2.418 | 2.316 |
| 1-7/16 | 7.026 | 5.518 | 6.085 | 5.827 |
| 1-1/16 | 3.838 | 3.015 | 3.324 | 3.183 |
| 1-1/2 | 7.650 | 6.008 | 6.625 | 6.345 |
| 1-3/16 | 4.795 | 3.766 | 4.152 | 3.977 |
| 1-7/8 | 11.95 | 9.388 | 10.35 | 9.911 |
| 1-9/16 | 8.301 | 6.519 | 7.189 | 6.885 |
| 1-15/16 | 12.76 | 10.02 | 11.05 | 10.58 |
| 1-5/8 | 8.978 | 7.051 | 7.775 | 7.446 |
| 2 | 13.60 | 10.68 | 11.78 | 11.28 |
| 2-1/8 | 15.35 | 12.06 | 13.30 | 12.73 |
| 2-1/16 | 14.46 | 11.36 | 12.53 | 11.99 |
| 2-7/16 | 20.20 | 15.87 | 17.49 | 16.75 |
| 2-3/8 | 19.18 | 15.06 | 16.61 | 15.91 |
| 2-9/16 | 22.33 | 17.53 | 19.34 | 18.52 |
| 2-1/2 | 21.25 | 16.69 | 18.40 | 17.62 |
| 2-11/16 | 24.56 | 19.29 | 21.27 | 20.37 |
| 2-5/8 | 23.43 | 18.40 | 20.29 | 19.43 |
Worldwide Supply of Alloy Steel Round Bars
Russia, Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates (UAE), Yemen, United States of America (USA), Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom, Vatican City.
