Forged Carbon Steel Flange

Forged ASTM A105 ASME ANSI B16.5 RF FF RJF LJF SO SW BL WN Customized

Carbon Steel Flange-ASTM A105 ASTM A105N

Carbon steel flanges, manufactured in accordance with ASTM A105, are generally used for piping applications. These forged carbon steel flanges are used for ambient- and higher-temperature service in pressure systems. These flanges may be manufactured in accordance with a variety of standard specifications covering ASME B16.5, ASME B16.47, ASME B16.48, ASME B16.36, MSS SP 44, API 605, and API 6A, etc.

Heat Treatment

ASTM A105 flanges shall be manufactured as one piece by a hot-forging process. This hot-forging process, either die forging or open-die forging, is a compressive hot-working operation. The metal flows in the designed direction during plastic deformation to form a disc-like product that is near to the finished flange. The forging process also consolidates the material to produce an essentially wrought steel structure. The product is subsequently machined to the exact shape and size of finished flange.

The forged carbon steel conforming to ASTM A105 is a Group 1.1 material according to ASME B16.5. Generally, heat treatment for A105 flanges in Class 150 and Class 300 is not necessarily required. For flanges above Class 300 or otherwise specified by end user, heat treatment, such as annealing, normalizing, or normalizing and tempering, or quenching and tempering, may be performed. The A105N, which is designated with a suffix “N”, denotes that the A105 forging shall be furnished in normalized condition.

Product Information

Dimensions of ASME/ANSI B16.5