In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and RINA grade E wash bulkhead steel pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.
Since the beginning of this year, the global RINA grade E wash bulkhead steel steel pipe industry, like many other industries, is facing severe market situation. The difference is that novel coronavirus pneumonia is not only affected by the epidemic, but also closely linked to the oil and gas industry, and the global RINA grade E wash bulkhead steel steel tube industry will also suffer from the "flash collapse" of international oil prices in March.
The cold working performance of RINA grade E wash bulkhead steel and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of RINA grade E wash bulkhead steel and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.
In October 19th 2018, our Malaysia customer purchased 600 Tons CCS Grade AH36 mairne steel RINA grade E wash bulkhead steel plates to use in their shipbuilding project .This customer is a famous shipyard company in Malaysia. Their company has the business scope of tourism, shipbuilding, transportation and so on. As a terminal manufacturer, they have strict requirements on quality for CCS Grade AH36 mairne steel plates. After visiting our steel milll, the customer is very satisfied with the quality of this batch of CCS Grade AH36 steel plates.
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