As one of the best din1630 seamless carbon steel pipe manufacturers and suppliers,Website: , and equipped with one of the well-known din1630 seamless carbon steel pipe brands and productive factory and company, World Iron & Steel Co.,Ltd is always at your service.DIN1630 high performance seamless circular unalloyed steel tubes. And these tubes are predominantly used in the construction of chemical plant, vessels, pipe-work and  for general mechanical engineering purposes.They are designed to meet high performance requirements. Normally. there are no limiting values for the maximum permissible working pressure of these tubes.the permissible working temperature shall not exceed 300degreeChemical Analysis:Mechanical Properties:1)Average value from three tests; only one individual value may fall short of the specified minimum value by not more than 30%2)For cold finished tubes in the NBK condition(annealed above the upper transformation point under shielding gas or in a vacuum),minimum values of yield stress lower than these values by 20N/mm2 are permitted.3)For cold finished tubes in the NBK condition, minimum values of tensile strength lower than these values by 10n/mm2 are permitted.