Steel
Steelpipe’s steel requirements up to and including 16mm hot rolled coil (HRC) are supplied by New Zealand Steel, a wholly owned subsidiary of Bluescope Limited.
Known sources
New Zealand Steel manufactures high quality steel is from the vast ironsand deposits on New Zealand’s West Coast. All materials used in New Zealand Steel’s manufacturing process are sourced locally in New Zealand and the end to end steel making process is all conducted at the plant in Glenbrook, South of Auckland. Steel is 100% recyclable and is the most recycled material in the world.
Specifications
We purchase our steel as hot rolled coil in either mill edge or slit edge format. The product fully complies with international specifications, including:
| Steel Specification | Code | Grade |
|---|---|---|
| New Zealand Standard | NZS 4442 | Grade 250 & Grade 350 |
| Australian Standard | AS 1594 | Grade 250 & Grade 350 |
| AS 3678 | Grade 250 & Grade 350 | |
| American Petroleum Institute | API 5L | Grade X42 - Grade X52 |
| British Standard | BS 4360 | Grade 43A - Grade 50B |
| Pipe Specification | Code | Grade |
|---|---|---|
| New Zealand Standard | NZS 4442 | Water/Sewage/Piling |
| Australian Standard | AS 1579 | Water/Sewage/Piling |
| AS 1163 | Structural/Piling | |
| American Society for Testing & Materials | ASTM A252 | Structural/Piling |
| Japanese Standard | JIS 5525 | Structural/Piling |
| American Petroleum Institute (Non-monogrammed) | API 5L | Petrochemical |
| American Water Works Association | AWWA C214 | Coating |
| AWWA C225 | Coating |
