1. What is the material of 30crmnsia?
30CRMNSIA is positioned in high-strength and high-toughness military alloy structural steel plates.
30crmnsia steel plate.
* Standard implementation standard: GJB2150A-2005 special, with technical conditions.
The implementation standard of the national standard is: GB T11251-2009, special technical conditions.
Second, the chemical composition of 30crmnsia steel plate:
Alloying element carbon c: 028-0.34
Alloying element silicon si: 090-1.20
Alloying element manganese mn: 080-1.10
Alloying element chromium cr: 080-1.10
Alloying elements nickel ni: 0030
Alloying element copper cu: 0025
Alloying element phosphorus: 0025
Alloying element sulfurs: 0025
3. 30crmnsia delivery status: mostly delivered in the state of normalizing, annealing, high-temperature tempering or non-heat treatment.
Fourth, the strength of 30crmnsia steel plate performance indicators.
30crmnsia steel plate has high strength and toughness. Its tensile strength is between 1200-1400MPa and yield strength is between 1000-1200MPa, which is much higher than the performance of ordinary steel plates.
Moreover, this kind of steel plate has been quenched and tempered at high temperature, and has high comprehensive mechanical properties, such as its tensile strength can reach 1080MPa and yield strength can reach 835MPa. This means that the material is able to withstand high pressures and impacts and is not prone to breakage.
It is mostly used in the manufacture of various important parts with high load and high speed, such as gears, shafts, clutches, sprockets, grinding wheel shafts, shaft sleeves, bolts, nuts, etc., and is also used to manufacture wear-resistant, low-temperature parts, and variable load welded components, such as blades, valve plates and non-corrosive pipes and pipes of high-pressure blowers.
High-strength quenched and tempered structural steel. It has high strength and toughness, high hardenability, medium cold deformation plasticity, and good cutting performance. There is a tendency to temper brittleness, and the lateral impact toughness is poor. The welding performance is good, but when the thickness is greater than 3mm, it should be preheated to 150 first, and heat treatment is required after welding. It is generally used after quenching and tempering.