NM400 NM450 NM500スチールサービス摩耗耐性鋼
サービス:
| SERVICE | DESCRIPTION |
| 切断 | 1. プラズマによって切断できます, レーザ, ウォータージェット, アークガウジ, そして、研磨型のこぎりの切断; 2. Oxy Fuelによってカットすることはできません. |
| 溶接 |
1. 使用 480 MPa (70 クシ) または 560 MPa (80 クシ) consumable to join base metal; 2. 溶接後, joint should be capped by overlay for wear protection. |
| 機械加工 |
1. 従来の方法では加工不可能; 2. Can be finished by grinding only; 3. Countersunk holes can be precisely produced by EDM (放電加工). |
| 形にする |
1. Commonly formed with overlay to the inside; 2. For pipes with diameters smaller than 0.6m (24″), hardfacing pipe recommended instead of pipes fabricated from hardfacing plate. |
| 掘削 |
1. When drilling, the distance between two holes should be at least 15mm (5/8”); otherwise, the partition may not be strong enough and can crack; 2. The minimum diameter of holes should be equal to the thickness of the plates. For thicker plates with a total thickness over 20mm (3/4”), the minimum diameter should be 1.5 times the thickness of the plate. |
