round bar

Hot rolled round bar 1. The roundbar according standard, JIS G 40532. Unless otherwise specified in the contract, the melting process shall be selected the producer himself.3. The steel products are usually delivered in the as hot rolled condition or the as forged condition.4. There shall be no visible cracks, knots, laps and inclusions on the surface of the steel product for the pressure working use. The above defects, if any, must be removed. The removing width shall be no less than 5 times of the depth. For the steel product with the diameter or the side length more than 140 mm, the locations of the Max removing depth shall not be more than 2 on the same one section. It is permitted that there exist very few fine scratches, dents, pits, which do not exceed one half of the size tolerance by counting from the actual size, and small cracks with the depth less than 0.2 mm.