Chuck Metals stands out as a top manufacturer and supplier of Alloy Steel Hollow Bars in Singapore, serving a diverse array of industries throughout Pulau Ujong and Southeast Asia. These hollow bars are crafted with precision, strength, and durability in mind, providing a smart alternative to solid bars by cutting down on weight while still maintaining structural integrity. Produced in line with ASTM A519, AISI, and other global standards, our alloy steel hollow bars excel in applications like machined components, hydraulic cylinders, and mechanical setups where a strong strength-to-weight ratio and internal machining flexibility are essential.
Typically, Alloy Steel Hollow Bars are made from grades such as AISI 4130, 4140, and 4340, which include different levels of carbon, chromium, molybdenum, and manganese to boost their mechanical properties. These bars boast tensile strength between 600 and 1100 MPa, along with impressive toughness, hardenability, and fatigue resistance. They can be heat-treated, allowing for quenching and tempering to enhance performance, and they also offer good machinability and weldability, making them versatile for intricate designs and high-load situations.
| 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. |
| 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 | – |
| 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 | – |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
| F9 | 415 | 30 | 205 |
| F5 | 275 | 485 | 20 |
| Size | Chucked true to OD | Chucked true to ID | |||||||
| OD, mm | ID, mm | Max. OD, mm | Min. ID, mm | Max. OD, in. | Min. ID, in. | Max. OD, mm | Min. ID, mm | Max. OD, in. | Min. ID, in. |
| 32 | 20 | 31 | 21.9 | 1.220 | 0.862 | 30 | 21 | 1.185 | 0.827 |
| 32 | 16 | 31 | 18 | 1.220 | 0.709 | 30 | 17 | 1.181 | 0.669 |
| 36 | 25 | 35 | 26.9 | 1.378 | 1.059 | 34.1 | 26 | 1.343 | 1.024 |
| 36 | 20 | 35 | 22 | 1.378 | 0.866 | 34 | 21 | 1.339 | 0.827 |
| 36 | 16 | 35 | 18.1 | 1.378 | 0.713 | 33.9 | 17 | 1.335 | 0.669 |
| 40 | 28 | 39 | 29.9 | 1.535 | 1.177 | 38.1 | 29 | 1.500 | 1.142 |
| 40 | 25 | 39 | 27 | 1.535 | 1.063 | 38 | 26 | 1.496 | 1.024 |
| 40 | 20 | 39 | 22.1 | 1.535 | 0.870 | 37.9 | 21 | 1.492 | 0.827 |
| 45 | 32 | 44 | 33.9 | 1.732 | 1.335 | 43.1 | 33 | 1.697 | 1.299 |
| 45 | 28 | 44 | 30 | 1.732 | 1.181 | 43 | 29 | 1.693 | 1.142 |
| 45 | 20 | 44 | 22.2 | 1.732 | 0.874 | 42.8 | 21 | 1.685 | 0.827 |
| 50 | 36 | 49 | 38 | 1.929 | 1.496 | 48 | 37 | 1.890 | 1.457 |
| 50 | 32 | 49 | 34.1 | 1.929 | 1.343 | 47.9 | 33 | 1.886 | 1.299 |
| 50 | 25 | 49 | 27.2 | 1.929 | 1.071 | 47.8 | 26 | 1.882 | 1.024 |
| 56 | 40 | 55 | 42 | 2.165 | 1.654 | 54 | 41 | 2.126 | 1.614 |
| 56 | 36 | 55 | 38.1 | 2.165 | 1.500 | 53.9 | 37 | 2.122 | 1.457 |
| 56 | 28 | 55 | 30.3 | 2.165 | 1.193 | 53.7 | 29 | 2.114 | 1.142 |
| 63 | 50 | 62 | 51.9 | 2.441 | 2.043 | 61.1 | 51 | 2.406 | 2.008 |
| 63 | 45 | 62 | 47 | 2.441 | 1.850 | 61 | 46 | 2.402 | 1.811 |
| 63 | 40 | 62 | 42.2 | 2.441 | 1.661 | 60.8 | 41 | 2.394 | 1.614 |
| 63 | 36 | 62 | 38.3 | 2.441 | 1.508 | 60.7 | 37 | 2.390 | 1.457 |
| 63 | 32 | 62 | 34.4 | 2.441 | 1.354 | 60.6 | 33 | 2.386 | 1.299 |
| 71 | 56 | 69.9 | 58 | 2.752 | 2.283 | 68.9 | 57 | 2.713 | 2.244 |
| 71 | 45 | 69.9 | 47.3 | 2.752 | 1.862 | 68.6 | 46 | 2.701 | 1.811 |
| 71 | 40 | 69.9 | 42.4 | 2.752 | 1.669 | 68.5 | 41 | 2.697 | 1.614 |
| 71 | 36 | 69.9 | 38.5 | 2.752 | 1.516 | 68.4 | 37 | 2.693 | 1.457 |
| 75 | 60 | 73.8 | 62 | 2.906 | 2.441 | 72.8 | 61 | 2.866 | 2.402 |
| 75 | 50 | 73.8 | 52.2 | 2.906 | 2.055 | 72.6 | 51 | 2.858 | 2.008 |
| 75 | 40 | 73.8 | 42.5 | 2.906 | 1.673 | 72.3 | 41 | 2.846 | 1.614 |
| 80 | 63 | 78.8 | 65 | 3.102 | 2.559 | 77.8 | 64 | 3.063 | 2.520 |
| 80 | 50 | 78.8 | 52.4 | 3.102 | 2.053 | 77.4 | 51 | 3.047 | 2.008 |
| 80 | 45 | 78.8 | 47.5 | 3.102 | 1.870 | 77.3 | 46 | 3.043 | 1.811 |
| 80 | 40 | 78.8 | 42.6 | 3.102 | 1.677 | 77.2 | 41 | 3.039 | 1.614 |
| 85 | 67 | 83.7 | 69.1 | 3.295 | 2.720 | 82.6 | 68 | 3.252 | 2.677 |
| 85 | 55 | 83.7 | 57.4 | 3.295 | 2.260 | 82.3 | 56.0 | 3.240 | 2.205 |
| 85 | 45 | 83.7 | 47.6 | 3.295 | 1.874 | 82.1 | 46.0 | 3.232 | 1.811 |
| 90 | 71 | 88.6 | 73.1 | 3.488 | 2.878 | 87.6 | 72.1 | 3.449 | 2.839 |
| 90 | 63 | 88.6 | 65.3 | 3.488 | 2.571 | 87.3 | 64.0 | 3.437 | 2.520 |
| 90 | 56 | 88.6 | 58.5 | 3.488 | 2.303 | 87.1 | 57.0 | 3.429 | 2.244 |
| 90 | 50 | 88.6 | 52.6 | 3.488 | 2.071 | 87.0 | 51.0 | 3.425 | 2.008 |
| 95 | 75 | 93.5 | 77.3 | 3.681 | 3.041 | 92.4 | 76.2 | 3.641 | 2.997 |
| 95 | 67 | 93.5 | 69.3 | 3.681 | 2.728 | 92.2 | 68.0 | 3.630 | 2.677 |
| 95 | 50 | 93.5 | 52.7 | 3.681 | 2.075 | 91.8 | 51.0 | 3.614 | 2.008 |
| 100 | 80 | 98.5 | 82.3 | 3.878 | 3.240 | 97.4 | 81.2 | 3.835 | 3.197 |
| 100 | 71 | 98.5 | 73.4 | 3.878 | 2.890 | 97.2 | 72.1 | 3.827 | 2.839 |
| 100 | 63 | 98.5 | 65.5 | 3.878 | 2.579 | 97.0 | 64.0 | 3.819 | 2.520 |
| 100 | 56 | 98.5 | 58.7 | 3.878 | 2.311 | 96.8 | 57.0 | 3.811 | 2.244 |
| 106 | 80 | 104.4 | 82.5 | 4.110 | 3.248 | 103.1 | 81.2 | 4.059 | 3.197 |
| 106 | 71 | 104.4 | 73.5 | 4.110 | 2.894 | 103.0 | 72.1 | 4.055 | 2.839 |
| 106 | 63 | 104.4 | 65.7 | 4.110 | 2.587 | 102.7 | 64.0 | 4.043 | 2.520 |
| 106 | 56 | 104.4 | 58.9 | 4.110 | 2.319 | 102.5 | 57.0 | 4.035 | 2.244 |
| 112 | 90 | 110.3 | 92.5 | 4.343 | 3.642 | 109.2 | 91.4 | 4.299 | 3.598 |
| 112 | 80 | 110.3 | 82.6 | 4.343 | 3.252 | 108.9 | 81.2 | 4.287 | 3.197 |
| 112 | 71 | 110.3 | 73.7 | 4.343 | 2.902 | 108.7 | 72.1 | 4.280 | 2.839 |
| 112 | 63 | 110.3 | 65.8 | 4.343 | 2.591 | 108.5 | 64.0 | 4.272 | 2.520 |
| 118 | 90 | 116.2 | 92.7 | 4.575 | 3.650 | 114.9 | 91.4 | 4.524 | 3.598 |
| 118 | 80 | 116.2 | 82.8 | 4.575 | 3.260 | 114.6 | 81.2 | 4.512 | 3.197 |
| 118 | 71 | 116.2 | 73.8 | 4.575 | 2.906 | 114.5 | 72.1 | 4.508 | 2.839 |
| 118 | 63 | 116.2 | 66.0 | 4.575 | 2.598 | 114.2 | 64.0 | 4.496 | 2.520 |
| 125 | 100 | 123.1 | 102.7 | 4.846 | 4.043 | 121.9 | 101.5 | 4.799 | 3.996 |
| 125 | 90 | 123.1 | 92.8 | 4.846 | 3.654 | 121.7 | 91.4 | 4.791 | 3.598 |
| 125 | 80 | 123.1 | 82.9 | 4.846 | 3.264 | 121.4 | 81.2 | 4.780 | 3.197 |
| 125 | 71 | 123.1 | 74.0 | 4.846 | 2.913 | 121.3 | 72.1 | 4.772 | 2.839 |
| 132 | 106 | 130.0 | 108.8 | 5.118 | 4.283 | 128.8 | 107.6 | 5.071 | 4.236 |
| 132 | 90 | 130.0 | 93.0 | 5.118 | 3.661 | 128.4 | 91.4 | 5.055 | 3.598 |
| 132 | 80 | 130.0 | 83.1 | 5.118 | 3.272 | 128.1 | 81.2 | 5.043 | 3.197 |
| 132 | 71 | 130.0 | 74.2 | 5.118 | 2.921 | 121.2 | 72.1 | 5.035 | 2.839 |
| 140 | 112 | 137.9 | 115 | 5.429 | 4.528 | 136.6 | 113.7 | 5.378 | 4.476 |
| 140 | 100 | 137.9 | 103.1 | 5.429 | 4.059 | 136.3 | 101.5 | 5.366 | 3.996 |
| 140 | 90 | 137.9 | 93.2 | 5.429 | 3.669 | 136.1 | 91.4 | 5.358 | 3.598 |
| 140 | 80 | 137.9 | 83.3 | 5.429 | 3.280 | 135.8 | 81.2 | 5.346 | 3.197 |
| 150 | 125 | 147.7 | 128.1 | 5.815 | 5.043 | 146.5 | 126.9 | 5.768 | 4.996 |
| 150 | 106 | 147.7 | 109.3 | 5.815 | 4.303 | 146 | 107.6 | 5.748 | 4.236 |
| 150 | 95 | 147.7 | 98.4 | 5.815 | 3.874 | 145.7 | 96.4 | 5.736 | 3.795 |
| 150 | 80 | 147.7 | 83.6 | 5.815 | 3.291 | 145.3 | 81.2 | 5.720 | 3.197 |
| 160 | 132 | 157.6 | 135.3 | 6.205 | 5.327 | 156.3 | 134 | 6.154 | 5.276 |
| 160 | 122 | 157.6 | 125.4 | 6.205 | 4.937 | 156 | 123.8 | 6.142 | 4.874 |
| 160 | 112 | 157.6 | 115.5 | 6.205 | 4.547 | 155.8 | 113.7 | 6.134 | 4.476 |
| 160 | 90 | 157.6 | 94.0 | 6.205 | 3.701 | 155.2 | 91.4 | 6.110 | 3.598 |
| 170 | 140 | 167.4 | 143.5 | 6.591 | 5.650 | 166 | 142.1 | 6.535 | 5.594 |
| 170 | 130 | 167.4 | 133.6 | 6.591 | 5.260 | 165.8 | 132 | 6.528 | 5.197 |
| 170 | 128 | 167.4 | 131.6 | 6.591 | 5.181 | 165.7 | 130 | 6.524 | 5.118 |
| 170 | 118 | 167.4 | 121.7 | 6.591 | 4.791 | 165.5 | 119.8 | 6.516 | 4.717 |
| 170 | 106 | 167.4 | 109.8 | 6.591 | 4.323 | 165.2 | 107.6 | 6.504 | 4.236 |
| 170 | 100 | 167.4 | 103.9 | 6.591 | 4.091 | 165 | 101.5 | 6.496 | 3.996 |
| 180 | 150 | 177.3 | 153.6 | 6.980 | 6.047 | 176 | 152.3 | 6.929 | 5.996 |
| 180 | 140 | 177.3 | 143.7 | 6.980 | 5.657 | 175.7 | 142.1 | 6.917 | 5.594 |
| 180 | 125 | 177.3 | 128.9 | 6.980 | 5.075 | 175.3 | 126.9 | 6.902 | 4.996 |
| 180 | 100 | 177.3 | 104.1 | 6.980 | 4.098 | 174.7 | 101.5 | 6.878 | 3.996 |
| 190 | 160 | 187.1 | 163.8 | 7.366 | 6.449 | 185.7 | 162.4 | 7.311 | 6.394 |
| 190 | 150 | 187.1 | 153.9 | 7.366 | 6.059 | 185.5 | 152.3 | 7.303 | 5.996 |
| 190 | 132 | 187.1 | 136 | 7.366 | 5.354 | 185.1 | 134 | 7.287 | 5.276 |
| 200 | 170 | 197.0 | 173.9 | 7.756 | 6.846 | 195.6 | 172.6 | 7.701 | 6.795 |
| 200 | 160 | 197.0 | 164 | 7.756 | 6.457 | 195.4 | 162.4 | 7.693 | 6.394 |
| 200 | 150 | 197.0 | 154.1 | 7.756 | 6.067 | 195.2 | 152.3 | 7.685 | 5.996 |
| 200 | 140 | 197.0 | 144.2 | 7.756 | 5.677 | 194.9 | 142.1 | 7.673 | 5.594 |
| 212 | 170 | 208.8 | 174.2 | 8.220 | 6.858 | 207.2 | 172.6 | 8.157 | 6.795 |
| 212 | 150 | 208.8 | 154.4 | 8.220 | 6.079 | 206.6 | 152.3 | 8.133 | 5.997 |
| 212 | 130 | 208.8 | 134.6 | 8.220 | 5.299 | 206.2 | 132 | 8.118 | 5.197 |
| 224 | 180 | 220.6 | 184.4 | 8.685 | 7.260 | 218.9 | 182.7 | 8.618 | 7.193 |
| 224 | 140 | 220.6 | 144.8 | 8.685 | 5.701 | 217.9 | 142.1 | 8.579 | 5.594 |
| 236 | 190 | 232.4 | 194.6 | 9.150 | 7.661 | 230.7 | 192.9 | 9.083 | 7.594 |
| 236 | 150 | 232.4 | 155.0 | 9.150 | 6.102 | 229.7 | 152.3 | 9.043 | 5.996 |
| 250 | 200 | 246.2 | 204.9 | 9.693 | 8.067 | 244.3 | 203.0 | 9.618 | 7.992 |
| 275 | 200 | 268.9 | 205.4 | 10.587 | 8.087 | 266.5 | 203.0 | 10.492 | 7.992 |
Alloy steel hollow bars and rods offer moderate corrosion resistance depending on the alloy composition. However, they may require additional treatments like coating or plating for enhanced protection against corrosion.
Alloy steel hollow bars can typically withstand temperatures ranging from -50°C to 500°C, depending on the alloy grade. Some high-performance alloys can endure even higher temperatures, making them versatile for various applications.
Alloy Steel Hollow Bars find extensive use in sectors like automotive, aerospace, oil and gas, mining, construction, and general engineering. You’ll often see them in applications such as hydraulic cylinder tubes, drive shafts, bushings, piston rods, tooling components, and structural supports where internal boring and weight reduction are crucial. Their capacity to withstand high pressures and stress makes them ideal for critical load-bearing systems and machinery components that require long-lasting durability, precision, and top-notch performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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