ASTM A421 PC Steel Wire (77B 82B Wire Rod)
Material: alloy steel 30MnSi
Size: 5.0mm, 6.0mm, 7.1mm, 9.0mm, 10.7mm, 12.6mm
Standard: YB/T111, GB/T5223.3, JISG3137, KSD3505
Tensile Strength: 1420MPa min; Yield strength: 1280MPa min
Elongation 5.0% min, Straightness less than 2.0mm/m
Normal Relaxation: 4.0% max, Low Relaxation: 2.0% max
Feature: good properties for lap welding and heat forging, low relaxation, comprehensive mechanical properties.
Usage: PC bars mainly used in prestressed concrete pipe pile (PC piles), electric pole (PC poles), railway sleeper etc.
Packing: in rolls, each roll is strapped by steel strips and wrapped in anti-rust PP woven sheet; Package Weight: 1000-2000kgs