We, Jonan Steel Corporation, manufacture high quality steel rods for reinforced concrete based on advanced technology and cutting-edge facilities.
Our products, manufactured with solid technique, have received worldwide acclaim, and have established its position as a trusted brand.
※ BS-SPEC is available. (water-cooled control)
※ I examine it and it produces it if available and sells it to other standards.
Product standard list
We conduct inspections on our products to check many factors such as chemical composition, shape, dimension, mechanical property, etc. These are done under our strict quality control system, and enables us to manufacture high quality products.
Chemical composition (%)
（※）Ceq = C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15
|Standards||Yield point||Tensile/Yield point ratio||Elongation||Elongation (at the time
of the maximum stress)
|Standards||Nominal diameter (mm)||Mandrel diameter|
Nominal section area/Unit mass/Tolerance
|Standards||Nominal diameter (mm)||Nominal section area||Unit mass (Kg/m)||Tolerance|
Tolerances on length