Nestled in the heart of Manama’s bustling industrial landscape, Ahmer Steel has established itself as a trusted name for quality and reliability. We are proud specialists in the manufacturing and supply of alloy steel bars, serving a diverse clientele across Bahrain and beyond. Our commitment goes beyond simple supply; we focus on understanding the unique demands of each project, ensuring our clients receive materials that form the resilient backbone of their most ambitious constructions and manufacturing endeavors.
The exceptional strength of our alloy steel bars comes from a carefully balanced composition, which includes elements like chromium, nickel, and molybdenum. This specific recipe enhances key mechanical properties, resulting in bars that offer superior tensile strength, impressive hardness, and remarkable resistance to wear and impact. These characteristics mean the material can handle significant stress and harsh operating conditions without compromising its structural integrity, providing a dependable solution for demanding applications.
| Specifications | ASTM A182, ASME SA182 |
|---|---|
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Range | 5mm to 500mm Dia in 100mm to 6000mm Length |
| Diameter | 10 mm To 200 mm |
| Thickenss | 0.5mm to 500mm Diameter |
| High Speed Steel (HSS), HCHCR & OHNS in Grade | M2, M3, M35, M42, T-1, T-4, T-15, T-42, D2, D3, H11, H13, OHNS-01 & EN52 |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1000 mm Long To 6000 mm Long |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
Alloy Steel Rods ASTM Specification
| Internal Standard | EN | DIN | SAE/AISI |
|---|---|---|---|
| EN 18 | EN 18 | 37Cr4 | 5140 |
| EN 19 | EN 19 | 42Cr4Mo2 | 4140/4142 |
| EN 24 | EN 24 | 34CrNiMo6 | 4340 |
| EN 353 | EN 353 | – | – |
| EN 354 | EN 354 | – | 4320 |
| SAE 8620 | EN 362 | – | SAE 8620 |
| EN 1 A | EN 1 A | 9SMn28 | 1213 |
| SAE 1146 | EN 8M | – | SAE 1146 |
| EN 31 | EN 31 | 100Cr6 | SAE 52100 |
| EN 45 | EN 45 | 55Si7 | 9255 |
| EN 45A | EN 45A | 60Si7 | 9260 |
| 50Crv4 | EN 47 | 50CrV4 | 6150 |
| SAE 4130 | – | 25CrMo4 | SAE 4130 |
| SAE 4140 | – | 42CrMO4 | SAE 4140 |
| 20MNCR5 | – | – | – |
| Element | 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 | – |
| 42CrMo4 | 0.380 – 0.45 % | 0.90 – 1.20 % | 0.60 – 0.90 % | 0.15 – 0.30 % | ≤ 0.035 % | ≤ 0.035 % | – | – |
| 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 | – |
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Density (Ă—1000 kg/m3) | 7.7-8.03 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 1158 | 25 | oil quenched, fine grained, tempered at 425°C |
| Yield Strength (Mpa) | 1034 | ||
| Reduction in Area (%) | 53 | ||
| Hardness (HB) | 335 | 25 | oil quenched, fine grained, tempered at 425°C |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| SIZE IN INCHES | ROUND | SQUARE | OCTAGON | HEXAGON | SIZE IN INCHES | ROUND | SQUARE | OCTAGON | HEXAGON |
| 1/16 | .010 | .013 | .011 | .012 | 11/16 | 1.262 | 1.607 | 1.333 | 1.392 |
| 5/64 | .017 | .022 | .018 | .019 | 45/64 | 1.320 | 1.681 | 1.394 | 1.456 |
| 3/32 | .023 | .029 | .024 | .025 | 23/32 | 1.380 | 1.756 | 1.487 | 1.521 |
| 7/64 | .031 | .039 | .033 | .034 | 47/64 | 1.440 | 1.834 | 1.521 | 1.588 |
| 1/8 | .042 | .053 | .044 | .046 | 3/4 | 1.502 | 1.913 | 1.586 | 1.656 |
| 9/64 | .053 | .067 | .056 | .058 | 25/32 | 1.630 | 2.075 | 1.721 | 1.797 |
| 5/32 | .065 | .083 | .069 | .072 | 13/16 | 1.763 | 2.245 | 1.862 | 1.944 |
| 11/64 | .079 | .100 | .083 | .087 | 27/32 | 1.901 | 2.421 | 2.008 | 2.096 |
| 3/16 | .094 | .120 | .099 | .104 | 7/8 | 2.045 | 2.603 | 2.159 | 2.254 |
| 13/64 | .110 | .140 | .116 | .121 | 29/32 | 2.193 | 2.792 | 2.316 | 2.418 |
| 7/32 | .128 | .163 | .135 | .141 | 15/16 | 2.347 | 2.988 | 2.479 | 2.588 |
| 15/64 | .147 | .187 | .155 | .162 | 31/32 | 2.506 | 3.191 | 2.646 | 2.763 |
| 1/4 | .167 | .213 | .176 | .184 | 1 | 2.670 | 3.400 | 2.820 | 2.945 |
|---|---|---|---|---|---|---|---|---|---|
| 17/64 | .188 | .240 | .199 | .207 | 1-1/16 | 3.015 | 3.838 | 3.183 | 3.324 |
| 9/32 | .211 | .269 | .223 | .233 | 1-1/8 | 3.380 | 4.303 | 3.569 | 3.727 |
| 19/64 | .235 | .300 | .248 | .259 | 1-3/16 | 3.766 | 4.795 | 3.977 | 4.152 |
| 5/16 | .261 | .332 | .275 | .288 | 1-1/4 | 4.172 | 5.313 | 4.407 | 4.601 |
| 21/64 | .288 | .360 | .304 | .318 | 1-5/16 | 4.600 | 5.857 | 4.858 | 5.072 |
| 11/32 | .316 | .402 | .334 | .348 | 1-3/8 | 5.049 | 6.428 | 5.332 | 5.567 |
| 23/64 | .345 | .439 | .364 | .381 | 1-7/16 | 5.518 | 7.026 | 5.827 | 6.085 |
| 3/8 | .376 | .478 | .397 | .414 | 1-1/2 | 6.008 | 7.650 | 6.345 | 6.625 |
| 25/64 | .408 | .519 | .431 | .450 | 1-9/16 | 6.519 | 8.301 | 6.885 | 7.189 |
| 13/32 | .441 | .561 | .466 | .486 | 1-5/8 | 7.051 | 8.978 | 7.446 | 7.775 |
| 27/64 | .475 | .605 | .502 | .524 | 1-11/16 | 7.604 | 9.682 | 8.030 | 8.385 |
| 7/16 | .511 | .651 | .540 | .564 | 1-3/4 | 8.178 | 10.41 | 8.634 | 9.018 |
| 29/64 | .548 | .698 | .579 | .604 | 1-13/16 | 8.773 | 11.17 | 9.265 | 9.673 |
| 15/32 | .587 | .747 | .620 | .647 | 1-7/8 | 9.388 | 11.95 | 9.911 | 10.35 |
| 31/64 | .627 | .798 | .662 | .692 | 1-15/16 | 10.02 | 12.76 | 10.58 | 11.05 |
| 1/2 | .668 | .850 | .705 | .736 | 2 | 10.68 | 13.60 | 11.28 | 11.78 |
| 33/64 | .710 | .904 | .750 | .783 | 2-1/16 | 11.36 | 14.46 | 11.99 | 12.53 |
| 17/32 | .754 | .960 | .796 | .831 | 2-1/8 | 12.06 | 15.35 | 12.73 | 13.30 |
| 35/64 | .799 | 1.017 | .844 | .881 | 2-3/16 | 12.78 | 16.27 | 13.49 | 14.09 |
| 9/16 | .845 | 1.076 | .892 | .932 | 2-1/4 | 13.52 | 17.21 | 14.27 | 14.91 |
| 37/64 | .893 | 1.136 | .943 | .985 | 2-5/16 | 14.28 | 18.18 | 15.08 | 15.75 |
| 19/32 | .941 | 1.199 | .994 | 1.038 | 2-3/8 | 15.06 | 19.18 | 15.91 | 16.61 |
| 39/64 | .992 | 1.263 | 1.048 | 1.094 | 2-7/16 | 15.87 | 20.20 | 16.75 | 17.49 |
| 5/8 | 1.043 | 1.328 | 1.102 | 1.150 | 2-1/2 | 16.69 | 21.25 | 17.62 | 18.40 |
| 41/64 | 1.096 | 1.395 | 1.207 | 1.209 | 2-9/16 | 17.53 | 22.33 | 18.52 | 19.34 |
| 21/32 | 1.150 | 1.464 | 1.214 | 1.268 | 2-5/8 | 18.40 | 23.43 | 19.43 | 20.29 |
| 43/64 | 1.205 | 1.535 | 1.272 | 1.329 | 2-11/16 | 19.29 | 24.56 | 20.37 | 21.27 |
These robust properties make alloy steel bars indispensable in a variety of heavy-duty sectors. They are commonly used to create critical components in the automotive and aerospace industries, such as high-strength axles, shafts, and landing gear parts. Furthermore, they are essential in heavy machinery, construction equipment, and the demanding environment of oil and gas extraction. Essentially, wherever there is a need for a material that combines durability with high performance under pressure, our alloy steel bars provide the foundational strength.
Ahmer Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Manama, Bahrain.
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