Product Details: Size 1/2 inch, 3/4 inch, 1 inch, 2 inch Range & Specifications : Socket Weld : 1/2 to 2 " upto 9000# 3" - 3000# Screwed : 1/2 to 2 1/2' upto 6000# 3" upto 3000# List of Specifications : 1. ANSI/ASME B16.11 Forged- Fittings, Socket Welding & Threading. 2. ANSI B1.20.1 Pipe Threads, General Purpose 3. ASTM A105, A182, A234, A350, A262, A153.