Forged steel pipe Od: 450mm ID: 220mm Length: 3.0-5.8m 2). Melting Process: EAF+LF+VD 3). Heat treatment: Annealed 4). Finish and Appearance: Rough Turned 5). Ultrasonic testing: Acc to SEP1921, Group 3, Class C/c 6). Reduction Ratio: Minimum 3: 1 7). Non-metal conlusion: To ASTM E 45 method A 8). The content of H2: Less than 2.0ppm 9). Straightness: Maxi 3 mm per meter. 10). Diameter Tolerance: -0/+3mm 11). Test certificate: Acc. To EN10204/3.1B
