30CrNiMoNb steel code 6211 steel. It is still in the experimental protection stage. […]

30CrNi3MoV belongs to alloy structural steel, executive standard: GJB 31A-2000 […]

The code name of 30CrNi2MnMoRE special steel is 617 steel plate, which implements the GJB 31A-2000 standard. 30CrNi3MoV code 675 steel. […]

30CrMnMoRE code is 603 steel, the number in front is the logo of the successful year of trial production. […]

30CrMnMoRE (603) is a high-strength and high-toughness steel plate, 603 is the code name of the steel plate, and 30CrMnMoRE (603) is used to make pressure-resistant shells, deep-dive life preservers, high-pressure structural parts, aerospace equipment, pr […]