Based in the industrious city of Hamilton, Latham Steel proudly supports New Zealand’s essential sectors with robust and reliable materials. Our focus is on providing high-performance Alloy Steel P23 Pipes, a product born from deep industry expertise. We understand that the integrity of your projects relies on the quality of their components, which is why we ensure our P23 pipes meet stringent standards, offering a trusted solution for demanding high-temperature and high-pressure environments right here from our local hub.
The strength of Alloy Steel P23 lies in its carefully balanced composition, which includes chromium, molybdenum, vanadium, and tungsten. This specific blend gives the pipes remarkable creep strength, allowing them to withstand immense pressure and extreme heat over long periods without deforming. They also offer excellent weldability and resistance to oxidation, making them not just strong, but also practical and durable for complex installations where performance cannot be compromised.
| 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.
Latham Steel is a major manufacturer and a supplier of premium Alloy Steel P23 pipe in Hamilton, the New Zealand. 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 |
You’ll typically find Alloy Steel P23 pipes hard at work in the most critical parts of power generation facilities, such as superheater and reheater coils in boilers. Their ability to perform under stress also makes them ideal for high-temperature pipelines in petrochemical plants and other demanding industrial settings. Essentially, wherever there’s a need to safely contain and transport steam or hot gases under extreme conditions, P23 is a go-to material for ensuring long-term reliability and safety.
Latham 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 Hamilton, New Zealand.
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