817M40 Alloy Steel
Qilu is an 817M40 alloy steel manufacturer that offers a wide selection of sizes, shapes, and thicknesses.
Professional 817M40 Alloy Steel Supplier
817M40 is a kind of alloy structural steel,also known as alloy steel. It is made of high quality carbon structural steel and add one or more alloy element(the total content does not exceed 5%) appropriately. This kind of steel is widely used for the important quenched and tempered parts that require good toughness, strength, and large size, such as heavy machinery shafts that can bear heavy load, automobile shafts with the diameter over 250mm, blades, high-load transmission parts, fasteners, crankshafts, gears, etc.
Shape Customization
Round bars:
Diameter of rolled:10-260mm
Diameter of forged:70-800mm
Square steels:
Thickness range:10-500mm
Width range:200-810mm
Forging rings:
Max outer diameter can reach 1000mm.
Grade Of Different Country And Chemical Composition
Chemical composition:
| Grade | C | Si | Mn | S | P | Cr | Ni |
| 817M40 | 0.44%-0.50% | 0.15%-0.35% | 0.60%-0.90% | ≤0.030% | ≤0.030% | 0.60%-1.00% | 1.60%-2.00% |
Surface Condition
Qilu Alloy Steel Series
Application Of 817M40 Alloy Steel
Mechanical manufacturing industry
Using for manufacturing high load shafts,gears,heavy axles,stud bolts and other parts.
Automobile industry
Suitable for the high strength components of manufacturing automobile,such as transmission shafts,gears and suspension systems etc.
Luft- und Raumfahrt
817M40 is suitable for the some of the components of aerospace field due to its high strength and light weight.
Chemical equipment
Suitable for manufacturing pressure vessels,chemical equipment,boilers etc.These equipment usually need to bear high pressure and corrosive media.
Shipbuilding
Used for manufacturing the propulsion shafts,gears and other critical structural components of ships.
Mold manufacturing
Due to its good mechanical properties and wear resistance,817M40 is usually used for manufacturing precision molds and mold steels.
Befestigungselemente
Suitable for manufacturing high strength bolts,nuts and other fasteners,these components need to bear high tensile stresses and repeated mechanical loads.
Qilu 817M40 Alloy Steel
Manufacturer Of High Performance 817M40 Alloy Steel
817M40 alloy steel, also known as 4340 steel, is commonly used in gears, bolts and studs, shafts, spindles and forgings.
817M40 is a high-strength alloy steel with good impact and wear resistance. At the same time, 817M40 steel has a high nickel content, which helps improve corrosion resistance and toughness. Therefore, this material is very suitable for use in automobiles, construction, pharmaceuticals and chemicals.
Contact us now to buy it!