Physical properties of nm400 wear-resistant plate

Material: nm400 wear-resistant plate

Thickness: 0.4-0.6mm

Hardness: 240HB

Density: 1.0g/cm3

< p>Tensile strength: 420-530MPa

Elongation: 20%

Impact toughness value: 50J/m

Rockwell hardness value: 150< /p>

Surface treatment: Galvanized

Usage: Suitable for various metal structures, bridges, vehicles and parts, etc. It has high wear resistance, good heat resistance and corrosion resistance. Used to manufacture high-load parts and mechanical parts such as gears, shafts and cams; used in chemical equipment to make reactors, pipes and containers.

Nm400 wear-resistant plate physical properties

1. Mechanical properties

(1) Tensile strength: 560~640Mpa; elongation: 30%~35% . (2) Impact toughness value: 50j/m. (3) Elasticity: 80～KN/m2. (4) Poisson's ratio: 0.33. (5) Brinell hardness (HBS): 250±15. (6) Vickers hardness (HV) 150±5°C.

2. Chemical composition

Steel grade carbon content ≤0.12%, manganese content ≤0.80%, silicon content ≤1.20%, phosphorus content ≤0.045%, total sulfur content <0.045% . The steel grades are represented as follows:

(1) Q235—carbon structural steel with a mass fraction of 0.25%;

(2) Q345—low carbon with a mass fraction of 0.3% Alloy structural steel;

(3) Q390—High-strength alloy structural steel with a mass fraction of 0.5%;

(4) Q420—Ordinary low-alloy high-strength steel with a mass fraction of 1.0% Strength steel plate;

(5) Q460---medium-strength steel plate with a mass fraction of 1.2%;

(6) q550---a mass fraction of 1.5% (total impurity elements) High-strength steel plates with a mass proportion of less than 0.05%);

(7) q620---low-alloy high-strength steel plates or welded wire rods with a mass proportion of less than 5%; (8) b-carbon structural steel ,

(9)d-low alloy high-strength steel bar,

(10)e-cold-rolled ribbed steel bar, f-hot-rolled ribbed steel bar,

(11) h-shaped steel,

(12) t-shaped steel, hot-rolled I-beam materials for U-shaped rigid frame beams.

3. Performance

(1) It can be processed into workpieces of various specifications and complex shapes; high heat is generated during cutting, which can easily cause tool wear and affect the service life. Therefore, the cutting amount and cutting speed should be reduced as much as possible to improve production efficiency and extend the service life of the tool.

(2) Good welding performance; the weld is not easy to crack after heat treatment; the weldment can withstand large loads and remain stable under certain conditions;

(3) It can For some special purposes (such as boilers and pressure vessels).