Correct welding method for nm400 weathering steel

BEBON is a large steel group with finance department, production department, sales team, technical department, quality control department, logistics department and after-sales service team. We are committed to creating a various culture system with its own characteristics, and work hard to create a first-class steel plate company in China. Based on the business philosophy of quality-oriented and strengthened management, the company continues to develop in this industry.

The main applications of NM400 weathering steel, wear plates: 1. Mining machinery and equipment. 2. Construction machinery and equipment, such as excavators, shovel, sand making machines, etc.. 3. Laying on the ground, wear-resistant plates will be laid on the roads of some construction sites. 4. Construction equipment, excavation machinery, earth moving machinery, compaction machinery, engineering lifting machinery, piling machinery, etc. are all in contact with various kinds of sediment for a long time, and need the support of wear-resistant plates. There are also many equipment that runs repeatedly and frequently, and wear plates are needed.

NM400 weathering steel, The wear-resistant steel plate adopts the open arc self-protection automatic surfacing process, and the composite-layer is a high-alloy wear-resistant layer with high hardness and high wear resistance on the surface of the ordinary steel plate or stainless steel plate. The wear-resistant steel plate has bimetal performance. That is, the high wear resistance of the working layer and the high plastic toughness of the base layer provide convenient mechanical connection and welding rod connection conditions for industrial applications, and can realize processing such as reeling, welding, plasma cutting, and mechanical connection.

The chemical composition difference between NM400 weathering steel, Q235B and 20# steel is as follows: The chemical composition of 20# steel: C: 0.17-0.23%, Si: 0.17-0.37%, Mn: 0.35-0.65%, Cr: ≤ 0.25%, Ni: ≤ 0.30%, Cu: ≤ 0.25%. Chemical composition of Q235B steel: C: ≤ 0.20%, Si: ≤ 0.35%, Mn: ≤ 1.40%, P: ≤ 0.045%, S: ≤ 0.045%. The difference of mechanical properties between NM400 weathering steel, Q235B and 20# steel is as follows: The mechanical properties of 20# steel: tensile strength 410 MPa; yield strength 245 MPa; elongation after fracture: 25; reduction of area: 55; no impact. Q235B steel mechanical properties: tensile strength 370-500 Mpa; yield strength: ≥ 235 Mpa; elongation after fracture: 25; impact absorption energy: 27J.

The mode of iron and NM400 weathering steel steel logistics transportation is mainly intercontinental ocean shipping and inland rail transportation. European ports have been very mature after years of development, such as Hamburg in Germany, Rotterdam in the Netherlands and Antwerp in Belgium. Relying on the huge market of the European Union, these ports are positioned in the logistics distribution function of cargo distribution and large import and export, and play a great role in the transportation of NM400 weathering steel steel logistics.

We are committed to providing customers with high-quality services, high-precision products and efficient solutions. If you have any demand for NM400 weathering steel steel plate, steel pipe and other products, please contact us directly. We are willing to provide you with relevant product knowledge and specific specifications for free. Welcome to purchase.