Nestled in the industrial heart of Hamilton, Latham Steel has built a reputation as a trusted partner for demanding industrial projects. We specialize in providing high-grade Boiler Quality Sheet and Plate, materials engineered for reliability under the most extreme conditions. Our commitment is to supply Hamilton’s manufacturers and workshops with steel that meets the highest standards of safety and performance, ensuring the integrity of critical systems and supporting the backbone of local industry with dependable, homegrown expertise.
True Boiler Quality steel is defined by its precise composition and robust mechanical properties. It is typically a carbon steel, often with silicon and manganese additions, creating a material with excellent strength and toughness. This is verified through rigorous testing to guarantee high tensile strength and superior yield points, ensuring it can withstand intense pressure and high temperatures without deforming or failing, which is absolutely non-negotiable for safety.
Standard:Â ASTM A516 / ASME SA 516 Gr 60 / 65/ 70
Width:Â 1000mm-4500mm
Thickness:Â 5mm-150mm
Length:Â 3000mm-18000mm
Supply Condition :Â As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.
Impact tested : -52° C
Tempering:Â Notch toughness can be improved by quenched cooling from hot rolling or normalizing by the supplier. If such a faster cooling rate is agreed upon between purchaser and supplier then the steel is also to be tempered at 1200 F.
Applications :Â Used for weld fabrication of pressure vessels that require improved notch toughness for lower than ambient temperature service.
Process of Manufacturing :Â Hot-Rolled (HR)
| C | Mn | P max | S max | Si max | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|  | t < 12.5 mm | 12.5mm < t =50mm | 50mm < t ≤ 100mm | 100mm < t ≤ 200mm | t < 200 mm | t < 12.5 mm | t 12s.5 mm | |||
| A516 Grade 55 | 0.18 | 0.2 | 0.22 | 0.24 | 0.26 | 06-09 | 0.55-0.98 | 0.035 | 0.035 | 0.15-0.4 |
| A516 Grade 60 | 0.21 | 0.23 | 0.25 | 0.27 | 0.27 | 06-09 | 0.85-1.2 | 0.035 | 0.035 | 0.15-0.4 |
| A516 Grade 65 | 0.24 | 0.26 | 0.28 | 0.29 | 0.29 | 0.85-1.2 | 0.85-1.2 | 0.035 | 0.035 | 0.15-0.4 |
| A516 Grade 70 | 0.27 | 0.28 | 0.3 | 0.31 | 0.31 | 0.85-1.2 | 0.85-1.2 | 0.035 | 0.035 | 0.15-0.4 |
| Â | Tensile Strength (ksi) | Tensile Strength (MPa) | Yield Strength (ksi) | Yield Strength (MPa) | Elongation in 200mm(%) | Elongation in 50mm(%) |
|---|---|---|---|---|---|---|
| A516 Grade 55 | 55-75 | 380-515 | 30 | 205 | 23 | 27 |
| A516 Grade 60 | 60-80 | 415-550 | 32 | 220 | 21 | 25 |
| A516 Grade 65 | 65-85 | 450-585 | 35 | 240 | 19 | 23 |
| A516 Grade 70 | 70-90 | 485-620 | 38 | 260 | 17 | 21 |
| Material # | EN 10028-2 | DIN 17155> | BS 1501 | ASTM | JIS G3115 |
|---|---|---|---|---|---|
| 1.0345 | P235GH | HI | 161 Gr. 360 / 164 Gr. 360 | A 285 Gr. C-A 414 Gr. C / A 516 Gr. 55 | SPV 24 |
| 1.0425 | P265GH | HII | 161 Gr. 400 / 164 Gr. 400 / 224 Gr. 400 | A 414 Gr. E / A 516 Gr. 60 | 　 |
| 1.0481 | P295GH | 17 Mn 4 | 224 Gr. 490 | A 414 Gr. F / A 516 Gr. 65 | SPV 32 |
| 1.0473 | P355GH | 19 Mn 6 | 　 | A 414 Gr. G | SPV 36 |
| 1.5415 | 16Mo3 | 15 Mo 3 | 1503 – 243 B | A 204 Gr. B | 　 |
| 1.7335 | 13CrMo4-5 | 13CrMo 4 4 | 620 Gr. 27 | A 387 Gr. 12 | 　 |
| 1.738 | 10CrMo9-10 | 10CrMo 9 10 | 622 Gr. 31 | A 387 Gr. 22 | 　 |
| 1.7383 | 11CrMo9-10 | 　 | 　 | 　 | 　 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Thickness mm | Size (Length x width) | Thickness mm | Size (Length x width) | Thickness mm | Size (Length x width) |
|---|---|---|---|---|---|
| 8 | 2055 x 12100 | ||||
| 3000 x 12000 | 2500 x 12000 | ||||
| 2500 x 12000 | 20 | 2055 x 12000 | 60 | 3000 x 6000 | |
| 3460 x 14000 | 3000 x 12000 | 65 | 3000 x 6000 | ||
| 3460 x 14000 | |||||
| 6 | 2055 x 12100 | 18 | 2055 x 12100 | 50 | 2055 x 8000 |
| 3000 x 12000 | 3000 x 12000 | ||||
| 2500 x 12000 | 2500 x 12000 | 3000 x 9000 | |||
| 3460 x 14000 | 55 | 3000 x 6000 | |||
| 12.5 | 2055 x 12100 | 4000 x 12000 | 90 | 3000 x 4000 | |
| 3460 x 14000 | 2500 x 12000 | ||||
| 3000 x 12000 | 25 | 2055 x 12000 | 100 | 3000 x 4000 | |
| 2500 x 12000 | |||||
| 4000 x 12000 | 3460 x 14000 | ||||
| 4000 x 12000 | |||||
| 10 | 2055 x 12100 | 4000 x 12000 | 70 | 3000 x 6000 | |
| 4000 x 12000 | 3000 x 12000 | 80 | 3000 x 6000 | ||
| 3000 x 12000 | 22 | 2055 x 12100 | 75 | 3000 x 6000 | |
| 2500 x 12000 | |||||
| 3460 x 14000 | 2500 x 12000 | ||||
| 3460 x 14000 | |||||
| 15 | 2055 x 12100 | 2500 x 12000 | |||
| 4000 x 12000 | 2500 x 10000 | ||||
| 3000 x 12000 | |||||
| 2500 x 12000 | 3000 x 10000 | ||||
| 3460 x 14000 | 40 | 2055 x 12000 | |||
| 3000 x 10000 | |||||
| 13 | 2055 x 12100 | ||||
| 3460 x 14000 | 4000 x 12000 | ||||
| 3000 x 12000 | 2500 x 12000 | ||||
| 2500 x 12000 | 30 | 2055 x 12000 | |||
| 4000 x 12000 | |||||
| 35 | 2055 x 12000 | ||||
| 16 | 2055 x 12100 | ||||
| 4000 x 12000 | |||||
| 3000 x 12000 | 2500 x 10000 | ||||
| 2500 x 12000 | 45 | 2055 x 8000 | |||
| 3460 x 14000 | 3000 x 9000 |
This specialised steel is the cornerstone of safety in high-pressure environments. Its primary use is, as the name suggests, in the fabrication of boilers and pressure vessels for power generation, petrochemical plants, and large-scale heating systems. Beyond this, its exceptional strength and heat resistance make it ideal for structural components in heavy machinery, mining equipment, and other critical applications where failure is not an option, proving its value far beyond the boiler room.
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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