This article is about Low-Temperature Steel Pipe Nipples and technical specification based on international codes and standards of A 333, Grade 6.
Low-Temperature Steel Pipe Nipples (A 333, Grade 6)
| Scope Description | Low-temperature steel, seamless, pipe nipple. |
| Material Specification | ASTM A 333/A 333M. Grade: 6. |
| Dimensional
Specification |
ASME B36.10M. |
| Purchase Order | See purchase order for DN or NPS, schedule or weight class or wall thickness, lengths in millimeters or inches, number of pieces, and delivery and shipping instructions. |
| Lengths | Lengths shall be as specified in the purchase order. |
| Tolerances | ASTM A 333/A 333M, Grade 6 |
| Drawings | Not required. |
| Calculations | Not required. |
| Chemical Composition | ASTM A 333/A 333M, Grade 6.
(Additional requirements when purchase order originates from or is for delivery to Europe, or when mandated by the purchase order). Also by ladle analysis the carbon content shall be 0.23% maximum and Supplementary Requirement S2 is required. |
| Mechanical Strength | ASTM A 333/A 333M, Grade 6.
(Additional requirements when purchase order originates from or is for delivery to Europe, or when mandated by the purchase order). The maximum tensile strength shall not be more than 565 N/mm2 (81 ksi). |
| Welding | Not allowed. |
| Heat Treatment | ASTM A 333/A 333M, Grade 6 |
| Inspection | ASTM A 333/A 333M, Grade 6. Air Products inspection is not required unless specified in the purchase order or required by the certification for this specification. |
| Testing | ASTM A 333/A 333M, Grade 6. Special impact tests are not required. |
| Examination | ASTM A 333/A 333M. Grade 6. |
| Certification | Mill certificate or, in Europe only, inspection certificate Type 3.1 to EN10204. Also see General Piping Material Purchase Specification. |
| Marking | ASTM A 333/A 333M, Grade 6. Marking shall also include the Commodity Code. Also see General Piping Material Purchase Specification. |
| Protection | Nipples shall be delivered free from corrosion or oxidation. A protective coating of light oil or varnish corrosion inhibitor may be used. This inhibitor shall be easily removable, and the supplier shall state with his quotation the method for removal. |
| Color Coding | Not required. |
| Packing | Shipment and Packing Specification for Equipment and Materials. Suitable packing shall be provided to ensure that all items arrive at the contractual point of delivery in an undamaged condition. Refer to the purchase order for specific packing standards and instructions. |
| Special Requirements | Repair welding is not acceptable. |
Application Notes
Low-temperature steel, seamless pipe nipples for the PED. Pressure: As calculated. Temperature: -46° to +427°C (-50° to +800°F).
Note: This engineering specification shall be used in conjunction with General Piping Material Purchase Specification.