In the vibrant industrial landscape of Kinshasa, Yoane Steel has established itself as a trusted partner for critical infrastructure projects. As a dedicated manufacturer and supplier, we specialize in providing high-performance materials that meet the demanding needs of the region. Our focus on Alloy Steel P23 Pipes reflects our commitment to quality and reliability, offering durable solutions that are engineered to withstand the rigorous conditions of modern power generation and industrial applications, right here from the heart of the Congo.
The strength of Alloy Steel P23 lies in its carefully balanced composition, which includes chromium, molybdenum, vanadium, and a controlled amount of tungsten. This specific blend gives the pipes exceptional resistance to creep, meaning they can handle intense heat and pressure over long periods without degrading. This results in outstanding tensile strength and durability, making them far superior to standard carbon steel options, especially in high-stress environments where failure is not an option.
| Alloy Steel ASTM A335 P23 Size | : | 1/8NB TO 24NB IN |
| ASTM A335 P23 Alloy Steel Standards | : | ASTM A 335, ASME SA 335, ANSI B36.10 |
| Alloy Steel ASTM A335 P23 Type | : | Seamless |
| ASTM A335 P23 Alloy Steel Pipe Specialized in | : | Large Diameter Size |
| Alloy Steel P23 Pipes Outer Dimensions | : | 19.05mm – 114.3mm |
| ASTM A335 P23 Alloy Steel Pipe Wall Thickness | : | 2.0mm – 14 mm |
| Alloy Steel P23 Pipe Length | : | max 16000mm |
| Alloy Steel P23 Pipes Schedule | : | Schedule 20 – Schedule XXS (heavier on request) up to 250 mm thk. |
| Alloy Steel P23 Pipes Form | : | Round, Square, Rectangular, Hydraulic Etc. |
| ASTM A335 P23 Alloy Steel Pipes Length | : | Single Random, Double Random & Cut Length. |
| Alloy Steel P23 Pipes End | : | Plain End, Beveled End, Treaded |
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % | V, % | Nb, % | B,% | N, % | Al, % | W, % |
| 0.04-0.10 | 0.1-0.6 | 0.03 max | 0.01 max | 0.5 max | 1.9-2.6 | 0.05-0.30 | 0.20-0.30 | 0.02-0.08 | 0.0005-0.006 | 0.03 max | 0.03 max | 1.45-1.75 |
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 510 min | 400 min | 20 min |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Yoane Steel is a major manufacturer and a supplier of premium Alloy Steel P23 pipe in Kinshasa, the Congo. With specialization in steel solutions, we offer a variety of products including carbon steel, alloy steel, light steel and galvanized steel. Our wide bearing has pipes, pipes, flanges, pipe fittings, forged fittings, sheets and plates. We are famous for our reliable distribution and extraordinary customer service, and are committed to offering high quality steel materials that ensure durability and better performance in different industrial applications. We are committed to skill, and we are your reliable partners for all steel requirements.
| O.D.(mm) x Thickness(mm) | O.D(mm) x Thickness(mm) | O.D(mm) x Thickness(mm) |
|---|---|---|
| 38.1 x 3.2 | 57.0 x 4.9 | 76.2 x 4.0 |
| 38.1 x 4.0 | 57.0 x 6.3 | 76.2 x 5.0 |
| 38.1 x 6.3 | 57.0 x 7.9 | 76.2 x 6.3 |
| 42.4 x 3.2 | 60.3 x 3.2 | 82.5 x 4.5 |
| 42.4 x 4.0 | 60.3 x 3.6 | 88.9 x 3.2 |
| 44.5 x 3.2 | 60.3 x 5.0 | 88.9 x 3.6 |
| 44.5 x 6.3 | 63.5 x 3.2 | 88.9 x 4.0 |
| 48.3 x 3.2 | 63.5 x 3.6 | 101.6 x 3.6 |
| 48.3 x 3.6 | 63.5 x 4.0 | 101.6 x 4.5 |
| 50.8 x 4.5 | 63.5 x 6.3 | 101.6 x 6.3 |
| 51.0 x 3.2 | 63.5 x 7.9 | 114.3 x 3.6 |
| 51.0 x 3.6 | 70.0 x 3.2 | 114.3 x 5.0 |
| 51.0 x 6.3 | 70.0 x 3.6 | 139.7 x 4.0 |
| 57.0 x 3.2 | 70.0 x 6.3 | 139.7 x 5.0 |
| 57.0 x 3.6 | 76.2 x 3.6 | 139.7 x 6.3 |
| Size NPS | Pipe O.D. | Wall Thickness | Pipe I.D. | Weight per Foot | Standard to XXHY | Schedule Pipe # | Section Modulus | Gallon Capacity Per Linear Foot |
| 1/2 | 0.84 | 0.109 | 0.622 | 0.85 | STD | 40 | .0407 | .0158 |
| Â | Â | 0.147 | 0.546 | 1.09 | XHY | 80 | .0478 | .0122 |
| Â | Â | 0.188 | 0.464 | 1.31 | Â | 160 | .0528 | .0088 |
| Â | Â | 0.294 | 0.252 | 1.72 | XXHY | Â | .0577 | .0026 |
| 3/4 | 1.05 | 0.113 | 0.824 | 1.13 | STD | 40 | .0705 | .0277 |
| Â | Â | 0.154 | 0.742 | 1.48 | XHY | 80 | .0853 | .0225 |
| Â | Â | 0.219 | 0.612 | 1.95 | Â | 160 | .1006 | .0153 |
| Â | Â | 0.308 | 0.434 | 2.44 | XXHY | Â | .1103 | .0077 |
| 1 | 1.315 | 0.133 | 1.049 | 1.68 | STD | 40 | .1328 | .0449 |
| Â | Â | 0.179 | 0.957 | 2.17 | XHY | 80 | .1606 | .0374 |
| Â | Â | 0.250 | 0.815 | 2.85 | Â | 160 | .1904 | .0271 |
| Â | Â | 0.358 | 0.599 | 3.66 | XXHY | Â | .2136 | .0146 |
| 1 1/4 | 1.66 | 0.140 | 1.380 | 2.27 | STD | 40 | .2346 | .0777 |
| Â | Â | 0.191 | 1.278 | 3.00 | XHY | 80 | .2913 | .0666 |
| Â | Â | 0.250 | 1.160 | 3.77 | Â | 160 | .3421 | .0549 |
| Â | Â | 0.382 | 0.896 | 5.22 | Â | Â | .4110 | .0328 |
| 1 1/2 | 1.90 | 0.145 | 1.610 | 2.72 | STD | 40 | .3262 | .1058 |
| Â | Â | 0.200 | 1.500 | 3.63 | XHY | 80 | .4118 | .0918 |
| Â | Â | 0.281 | 1.338 | 4.86 | Â | 160 | .5079 | .0730 |
| Â | Â | 0.400 | 1.100 | 6.41 | Â | Â | .5977 | .0494 |
| 2 | 2.375 | 0.109 | 2.157 | 2.64 | Â | 10 | .4205 | .1898 |
| Â | Â | 0.154 | 2.067 | 3.66 | STD | 40 | .5606 | .1743 |
| Â | Â | 0.218 | 1.939 | 5.03 | XHY | 80 | .7309 | .1534 |
| Â | Â | 0.250 | 1.875 | 5.68 | Â | Â | .8045 | .1434 |
| Â | Â | 0.281 | 1.813 | 6.29 | Â | Â | .8666 | .1344 |
| Â | Â | 0.344 | 1.687 | 7.47 | Â | 160 | .9806 | .1161 |
| Â | Â | 0.436 | 1.503 | 9.04 | XXHY | Â | 1.1043 | .0922 |
| 2 1/2 | 2.875 | 0.120 | 2.635 | 3.53 | Â | 10 | .6870 | .2833 |
| Â | Â | 0.203 | 2.469 | 5.80 | STD. | 40 | 1.0640 | .2487 |
| Â | Â | 0.216 | 2.443 | 6.14 | Â | Â | 1.1169 | .2435 |
| Â | Â | 0.250 | 2.375 | 7.02 | Â | Â | 1.2468 | .2301 |
| Â | Â | 0.276 | 2.323 | 7.67 | XHY | 80 | 1.3386 | .2202 |
| Â | Â | 0.375 | 2.125 | 10.02 | Â | 160 | 1.6371 | .1842 |
| Â | Â | 0.552 | 1.771 | 13.71 | XXXHY | Â | 1.9971 | .1280 |
| 3 | 3.50 | 0.120 | 3.260 | 4.34 | Â | Â | 1.0411 | .4336 |
| Â | Â | 0.156 | 3.188 | 5.58 | Â | Â | 1.3122 | .4147 |
| Â | Â | 0.172 | 3.156 | 6.12 | Â | Â | 1.4265 | .4064 |
| Â | Â | 0.188 | 3.124 | 6.66 | Â | Â | 1.5342 | .3984 |
| Â | Â | 0.216 | 3.068 | 7.58 | STD. | 40 | 1.7241 | .3840 |
| Â | Â | 0.250 | 3.000 | 8.69 | Â | Â | 1.9372 | .3672 |
| Â | Â | 0.281 | 2.938 | 9.67 | Â | Â | 2.1207 | .3521 |
| Â | Â | 0.300 | 2.900 | 10.26 | XHY | 80 | 2.2253 | .3431 |
| Â | Â | 0.438 | 2.624 | 14.34 | Â | 160 | 2.8774 | .2811 |
| Â | Â | 0.600 | 2.300 | 18.6 | XXHY | Â | 3.4243 | .2158 |
| 3 1/2 | 4.0 | 0.120 | 3.760 | 4.98 | Â | 10 | 1.3776 | .5768 |
| Â | Â | 0.226 | 3.548 | 9.12 | STD. | 140 | 2.3939 | .5136 |
| Â | Â | 0.250 | 3.500 | 10.02 | Â | Â | 2.6001 | .4998 |
| Â | Â | 0.281 | 3.438 | 11.17 | Â | Â | 2.8562 | .4821 |
| Â | Â | 0.318 | 3.364 | 12.52 | XHY | 80 | 3.1400 | .4617 |
| Â | Â | 0.636 | 2..728 | 22.87 | XXHY | Â | 4.8795 | .3085 |
| 4 | 4.5 | 0.120 | 4.260 | 5.62 | Â | 10 | 1.7612 | .7404 |
| Â | Â | 0.156 | 4.188 | 7.24 | Â | Â | 2.2354 | .7156 |
| Â | Â | 0.188 | 4.124 | 8.67 | Â | Â | 2.6296 | .6942 |
| Â | Â | 0.203 | 4.094 | 9.32 | Â | Â | 2.8173 | .6838 |
| Â | Â | 0.219 | 4.062 | 10.02 | Â | Â | 3.0184 | .6725 |
| Â | Â | 0.237 | 4.026 | 10.80 | STD. | 40 | 3.2145 | .6613 |
| Â | Â | 0.250 | 4.000 | 11.36 | Â | Â | 3.3611 | .6528 |
| Â | Â | 0.281 | 3.938 | 12.67 | Â | 60 | 3.7021 | .6326 |
| Â | Â | 0.312 | 3.876 | 13.97 | Â | Â | 4.0273 | .6126 |
| Â | Â | 0.337 | 3.826 | 15.00 | XHY | 80 | 4.2713 | .5972 |
| Â | Â | 0.438 | 3.624 | 19.02 | Â | 120 | 5.1790 | .5361 |
| Â | Â | 0.531 | 3.438 | 22.53 | Â | 160 | 5.8997 | .4822 |
| Â | Â | 0.674 | 3.152 | 27.57 | XXHY | Â | 6.7927 | .4054 |
| 5 | 5.563 | 0.188 | 5.187 | 10.80 | Â | Â | 4.1161 | 1.0979 |
| Â | Â | 0.219 | 5.125 | 12.51 | Â | Â | 4.7279 | 1.0716 |
| Â | Â | 0.258 | 5.047 | 14.63 | STD. | 40 | 5.4500 | 1.0391 |
| Â | Â | 0.281 | 5.001 | 15.87 | Â | Â | 5.8644 | 1.0204 |
| Â | Â | 0.312 | 4.939 | 17.51 | Â | Â | 6.4074 | .99647 |
| Â | Â | 0.344 | 4.875 | 19.19 | Â | Â | 6.9358 | .9696 |
| Â | Â | 0.375 | 4.813 | 20.80 | XHY | 80 | 7.4300 | .9449 |
| Â | Â | 0.500 | 4.563 | 27.06 | Â | 120 | 9.2534 | .8495 |
| Â | Â | 0.625 | 4.313 | 32.99 | Â | 160 | 10.7976 | .7590 |
| Â | Â | 0.750 | 4.063 | 38.59 | XXHY | Â | 12.0954 | .6734 |
| 6 | 6.625 | 0.109 | 6.407 | 7.59 | Â | 5 | 3.5769 | 1.6748 |
| Â | Â | 0.134 | 6.357 | 9.30 | Â | 10 | 4.3475 | 1.6488 |
| Â | Â | 0.156 | 6.313 | 10.79 | Â | Â | 5.0107 | 1.6260 |
| Â | Â | 0.188 | 6.249 | 12.94 | Â | Â | 5.9351 | 1.5937 |
| Â | Â | 0.203 | 6.219 | 13.94 | Â | Â | 6.3804 | 1.5780 |
| Â | Â | 0.219 | 6.187 | 15.00 | Â | Â | 6.8261 | 1.5620 |
| Â | Â | 0.250 | 6.125 | 17.04 | Â | Â | 7.6905 | 1.5306 |
| Â | Â | 0.280 | 6.065 | 18.99 | STD. | 40 | 8.4958 | 1.5008 |
| Â | Â | 0.312 | 6.001 | 21.06 | Â | Â | 9.3416 | 1.4688 |
| Â | Â | 0.344 | 5.937 | 23.10 | Â | Â | 10.111 | 1.4391 |
| Â | Â | 0.375 | 5.875 | 25.05 | Â | Â | 10.893 | 1.4082 |
| Â | Â | 0.432 | 5.761 | 28.60 | XHY | 80 | 12.224 | 1.3541 |
| Â | Â | 0.500 | 5.625 | 32.74 | Â | Â | 13.711 | 1.2909 |
| Â | Â | 0.562 | 5.501 | 36.43 | Â | 120 | 14.9806 | 1.2346 |
| Â | Â | 0.625 | 5.375 | 40.09 | Â | Â | 16.1821 | 1.1787 |
| Â | Â | 0.719 | 5.187 | 45.39 | Â | 160 | 17.8243 | 1.0977 |
| Â | Â | 0.864 | 4.897 | 53.21 | XXHY | Â | 20.025 | .9784 |
| Â | Â | 1.000 | 4.625 | 60.13 | Â | Â | 21.7719 | .8727 |
| Â | Â | 1.125 | 4.375 | 66.14 | Â | Â | 23.1237 | .7809 |
Primarily, these pipes are essential for building state-of-the-art power plants, where they form the backbone of superheater and reheater systems that operate under extreme temperatures. Beyond the energy sector, their robustness is invaluable in large-scale processing industries like petrochemical and fertilizer production. By choosing Yoane Steel’s P23 pipes, you are investing in the longevity and safety of your critical infrastructure, ensuring operational efficiency for years to come.
Yoane 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 Kinshasa, Congo.
Copyright 2025 Yoane Steel. All rights reserved
