Introduction to 41Cr4 steel plate grades
41Cr4 belongs to alloy structural steel plate, and the tensile strength, yield strength and hardenability of 41Cr4 steel plate are higher than that of No. 40 steel. 41Cr4 has certain defects, that is, its weldability is limited, and it has a tendency to form cracks. 41Cr4 is generally used for more important quenched and tempered parts, such as parts working under alternating loads, parts with medium speed and medium load
| Chemical composition |
| Tabulation: Depu Steel Date: 2024-01-22 |
| C |
Si |
Mn |
S |
Ni |
P |
Cr |
Cu |
| 0.38-0.45 |
≤0.40 |
0.60-0.90 |
≤0.035 |
≤0.030 |
≤0.035 |
0.90-1.20 |
≤0.030 |
Note:
(1): In order to improve the properties of steel, other trace alloying elements other than those in the above table can be added; This value is only for WSD690D≤80mm; The data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions of GB/T222
Tensile strength σb (MPa): ≥980 (100) Yield strength σs (MPa): ≥785 (80) Elongation δ5 (%): ≥9
Section shrinkage ψ (%): ≥45 impact energy Akv (J): ≥47
Impact toughness value αkv (J/cm2): ≥59 (6)
Hardness: ≤207HB
Specimen size: The size of the specimen blank is 25mm
, and the specific mechanical properties should be indicated in
the steel mill material book, 41Cr4 is used for more important quenched and tempered parts, such as parts working under alternating load, parts with medium speed and medium load.
After surface quenching, it can be used for parts with high load and wear resistance without great impact, such as gears, sleeves, shafts, crankshafts, and pins.
