Low alloy high strength s235jr rolled steel suppliers

The fake and inferior s235jr rolled steel, steel plates have no metallic luster and are light red or similar to pig iron for two reasons. 1. Its blank is adobe. 2. The rolling temperature of counterfeit and inferior materials is not standard, and their steel temperature is visually inspected. In this way, rolling cannot be carried out in the specified austenite area, and the performance of the steel plate will naturally not meet the standard.

The carbon content of s235jr rolled steel, medium carbon steel plate is 0.25% - 0.60%. In addition to carbon, it can also contain a small amount of manganese (0.70% - 1.20%). The medium carbon steel plate after quenching and tempering has good comprehensive mechanical properties. The highest hardness is about HRC55 (hb538) and σ B is 600-1100mpa.

On March 12, the Zhengzhou Municipal Development and Reform Commission approved the "Preliminary Design of the New Construction of Provincial Highway No. 312 Road Sewage Pipe Network (Jiangshan Road-Sigang Linkage Avenue Connection Line)". Provincial Highway 312 is an important road for Zhengzhou City to construct the core demonstration area for ecological protection and high-quality development of the Yellow River Basin. The implementation of the project will better protect the ecological environment along Provincial Highway 312, improve environmental quality, and improve the service functions of regional public facilities.