18CrNiMo7-6 forged bars,SCM440 forged bars,SCM435 forged bars,4130 forged bars,4140 forged bars,4145 forged bars
What is 18CrNiMo7-6 forged bars?
18CrNiMo7-6 forged bars are a brand of steel. 18CrNiMo7-6 steel is a surface hardened steel with high toughness.
18CrNiMo7-6 forged bars Specification and application
18Crnimo 7-6 is a type of alloy steel made of chromium, nickel, molybdenum and coal. 18Crnimo 7-6 forged rod alloy steel can be used in larger sizes and loads. This grade of alloy steel can be used in heavy duty parts and components because of its excellent ability to withstand high pressure and variable speed operation. 18CrNiMo7-6 can also be used to produce special bearings, bolts, gears, shafts or rack and pinion gears.
Typical application of 18CrNiMo7-6 forged
Bars grade steel
Bushings wear pins
Sprockets
Shafts
Gears
Bearings
it can also be used for high tensile applications un-carburised,but through-haedened and tempered.
If you need 18CrNiMo7-6 forged bars,SCM440 forged bars,SCM435 forged bars,4130 forged bars,4140 forged bars,4145 forged bars, Please contact us! We have rich manufacturing production and foreign trade experience!
Forged steel 4140 Forged bars Chemical Composition and alternative grade (%):
| Grade | C | Si | Mn | P | S | Cr | Mo |
| 42CrMo4 | 0.38-0.45 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 |
| 1.7225 | 0.38-0.45 | ≤0.40 | 0.60-0.90 | ≤0.025 | ≤0.035 | 0.90-1.20 | 0.15-0.30 |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
18CrNiMo7-6 forged bars,SCM440 forged bars,SCM435 forged bars,4130 forged bars,4140 forged bars,4145 forged bars
available sizes
Round: Dia. 16 – 1000mm
16mm-350mm with hot rolled supply condition;
200-1000mm with forged supply condition
Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 – 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
Packing situation: standard seaworthy packing or as customer required
Delivery time: 30 days after order confirmed
Process: EAF+LF+VD ( necessary) +UT+ Peeled(optional) +Turned (optional) + Heat Treatment (optional)
Other grade we can supply
4140 Forged steel round bar,4145 forged steel,4340 a105 forged steel,a105 forged steel fittings,astm a105 forged steel,best forged steel anvil,cola 4340 forged steel crankshafts,forged,steel a105,forged steel aisi 4140 properties,4140 forged steel,4140 forged steel,crankshaft position sensor location,4140 forged steel eye bolt,4140 forged steel grades,cold,hammer-forged 4140 chrome-moly steel,forged steel aisi 4140,forged high strength,4140 alloy steel,forging 4140 tool steel,SCM440 forged steel bar,42CrMo4 forged round bar,4150 forged steel,forged parts,alloy forging,hot forging,
Our advantage
- Computer-Aided Design (CAD) System
- Multiple Wire EDM (Electric Discharge Machining) Machines
- Plunge EDM (Solid Electrode Electric Discharge Machining)
- Complete Manufacturing of Carbide Dies
- Contoured Straightener Rolls
- Profile Shape Shear Knives
- Fast Tooling Changes and Modifications
An Advanced Quality Planning System Used for Prototyping
FAQ
What is the chemistry of 18CrNiMo7-6?
18 CrNiMo 7-6 Low Alloy Steels consists of Nickel (1.4% – 1.7%), Manganese (0.5% – %), Molybdenum (0.25% – 0.35%), Carbon (0.15% – 0.21%), Silicon (0% – 0.4%), Iron (Bal) as primary components.
What material is 18CrNiMo7?
18CrNiMo7-6 grade steel is an alloyed case hardening steel for heavy and high strained gear parts with high demands on toughness at core. It has tensile strength of 1050 – 1350 N/mm².
What is the fracture toughness of 18CrNiMo7 6?
From the perspective of energy, the fracture toughness of the 18CrNiMo7-6 alloy steel base material was calculated to be 62.5 MPa·m1/2 using the load–depth curve obtained from the indentation test.
Is higher fracture toughness better?
Fracture toughness is a fundamental materials property, indicating the strain energy–absorbing ability of a material prior to fracture. The higher the fracture toughness, the higher the material resistance to crack propagation.
