100CR6 Alloy steel
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100CR6 Alloy steel Stockist,100CR6 Alloy steel Suppliers, 100CR6 Alloy steel Exporters, 100CR6 Alloy steel Exporters, 100CR6 Alloy steel Manufacturer, S100CR6 Alloy steel India, 100CR6 Alloy steel Cut Piece,100Cr6 Small Quantity,100Cr6 Suppliers | 100Cr6 Bearing Steel, 100CR6 Alloy steel Exporter from Mumbai India, 100CR6 Alloy steel Traders,100CR6 Alloy steel Dealers,100CR6 Alloy steel Stockholder.
100CR6 Alloy steel,100CR6 Alloy steel Stockist, 100CR6 Alloy steel Suppliers, 100CR6 Alloy steel Exporters
We are 100CR6 Alloy steel stockists, stockholders, exporters, and suppliers from India. 100CR6 Alloy steel is medium carbon steel with moderate tensile strength. While the material can harden by Quenching and Tempering on limited sections, it is more commonly supplied untreated or normalized.
100Cr6 is a through-hardening bearing steel for rolling contact and other high-fatigue applications. Hardened steel has the right properties to withstand high cycle, high-stress fatigue because of its high hardness, strength, and cleanliness. It is also regularly used for machine components requiring high tensile strength and hardness.
This alloy steel specification contains Chromium and Manganese. AISI 52100 and GB GCr15 are equivalent to 100Cr6. 100CR6 alloy steel is the most commonly used for bearings and roller balls. Good hardenability, diameters up to 30 mm, good inalterability, excellent wear resistance at hardened and stress-relieved states, and good machinability with machine tools make this steel ideal for roller balls. Rolls for small and medium dimensions bearings, ring nuts, balls, small rollers for cold rolling, and spindles and cams for textile machinery can be made out of it.
The most common material used to make precision ball bearings, roller bearings, and tapered roller bearings is 100Cr6 chrome steel. The bearing’s inner and outer rings, balls, and rollers are these components. The chemical composition of this steel has a high carbon and about 1.5% chromium content. As a result of controlled processing and heat-treating, finished bearing components are strong and resist cracking, as well as having a hard surface that prevents fatigue from rolling under the surface. Chromium-containing steel 100Cr6 is through hardening and is specifically suited for bearing applications.
Carbon is known for its excellent hardness and wear resistance, while chromium is known for its corrosion resistance and overall strength due to its high content. An alloy of high carbon chromium bearing steel, 100Cr6, is commonly used to manufacture ball bearings, roller bearings, and other items requiring high wear resistance. In addition to approximately 1% carbon and 1.5% chromium, this alloy contains small amounts of manganese, silicon, phosphorus, sulfur, and several other elements. A typical heat treatment process for hardening an alloy is quenching and tempering, which results in a material with a high surface hardness and a tough, ductile core that can be used to produce a wide variety of products. It is widely used in manufacturing precision components, such as bearings, automotive parts, and machine tools, which require precision components.
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Chemical Composition 100CR6 Alloy steel
C | Si | Mn | P | S | Cr | Mo | Cu | O | Al |
0.93-1.05 | 0.15-0.35 | 0.25-0.45 | ≤0.025 | ≤0.015 | 1.35-1.60 | ≤0.10 | ≤0.30 | ≤0.0015 | ≤0.050 |
Mechanical Properties 100CR6 Alloy steel
Tensile Strength (MPa) | Yield Strength (MPa), ≥ | Elongation (%, ≥) |
1080-1470 | 835 | 9 |
A tensile strength of 570 – 720 MPa is achieved after spheroidizing annealing.
After thermal treatment, the tensile strength of the steel is between 590 and 780 MPa.
The linear expansion factor – A20-100°C = 12.0 x 10-6 K-1 at 20°C.
235 HB is the hardness of the annealed steel with limited hardness in the annealed condition..
As a result of spheroidized annealing, the hardness ranges from 170 to 210 HB.
The heat-hardened state of the material has a hardness of 170 – 230 HB.
The hardness of the material in the heat-treated state is greater than 675 HB.
100CR6 Alloy steel Material Brinell Hardness:
- 207 HBW (Annealed to achieve spheroidized carbides);
- 241 HBW (Annealed to achieve spheroidized carbides and cold worked)
100CR6 Alloy steel Physical Properties:
Density (g/cm3) |
7,8 |
Specific heat capacity in J/(Kg·K) |
460 at 20℃ |
Electrical resistance (μΩ·m) |
0.19 (20℃) |
Modulus of elasticity (GPa) |
210 |
Thermal conductivity in W/(m·K) |
33,0 (20 ℃) |
32,2 (350 ℃) |
|
31,4 (700 ℃) |
|
Thermal expansion coefficient (10-6/K) |
12,3 (20-100℃) |
13,4 (20-200℃) |
|
13,8 (20-300℃) |
|
14,1 (20-400℃) |
100CR6 Alloy steel Equivalent Grade:
European Union | ISO | US | Japan | China | |||||
Standard | Grade (Steel number) | Standard | Grade (Steel number) | Standard | Grade | Standard | Grade | Standard | Grade |
EN ISO 683-17 | 100Cr6 (1.3505) | ISO 683-17 | 100Cr6 (1.3505) | AISI SAE, ASTM A295/A295M | 52100 | JIS G 4805 | SUJ2 | GB/T 18254 | GCr15 |
100CR6 Alloy steel Heat Treatment:
- Hardening temperature: 830-870 ℃, quenching media: oil.
- Tempering temperature: 150-180 ℃.
Technical Parameters
Property | Type | U.o.M. | Values | U.o.M. | Values |
Hardness | Mechanical | [HRC] | 60 – 66 | – | – |
Ultimate tensile strength | Mechanical | [MPa] | 2500 – 2600 | [psix10^3] | 362 – 377 |
Transformation temperatures 100CR6 Alloy steel
Temperature °C | |
MS | 218 |
AC1 | 745 |
AC3 | 910 |
100CR6 Alloy steel Heat treatment recommendations
Treatment |
Condition |
Temperature cycle |
Cooling/quenching |
Hot forging |
+AR |
800-1100°C |
Air cool. |
Spheroidize annealing |
+SA |
RT-820°C 1h 820°C 2h 820-740°C 1h 740-690°C 10h |
In air |
Stress relieve annealing |
+SRA |
550-650°C 1h |
In air |
Q/T (martensite) |
+Q/T(m) |
830-870°C 10-60 min |
Oil quench ( +tempering within 2h at minimum 160°C. See diagram ) |
Q/T (bainite) |
+Q/T(b) |
850-875°C 10-60 min. |
Salt bath 220-250°C 3-7h. See diagram |
Tempering |
+T |
160-500°C. See diagram |
In air |
Regular size and tolerance
Hot Rolled steel plate |
|||
Thickness (mm) |
Thickness Tolerance (mm) |
Thickness (mm) |
Thickness Tolerance (mm) |
≤25.4 |
-0.41~0.79 |
>127~152 |
-1.60~2.39 |
>25.4~76 |
-0.79~1.19 |
>178~254 |
-1.98~3.18 |
>76~127 |
-1.19~1.60 |
>254~305 |
-2.39~3.96 |
100CR6 Alloy steel Heat Treatment
Partial Annealing
Make the temperature up to 770-790°C, then cool the furnace to 550°C after thermal retardation, and then air cool the stove. Hardness requirements are 187-229HBS.
Isothermal Spheroidizing Annealing
First of all, heat it to get 770-790℃, after being isothermal at 680 ~ 700 ℃, it will be cooled with the furnace to below 550 ℃ and then air-cooled. The hardness of 100Cr6 steel must be 187-229HBS.
Stress Relieving
The furnace should be heated up to 600-700°C, then kept at that temperature, and then cooled. Mould steel should have a hardness of 187-229HBS. Characters remove residual stress and work hardening.
Normalising
Heat it until the temperature is at the range of 930-950℃, maintain the temperature, air cooling. The hardness needs to be 302-388HBS.
Tempering
Heat to 150-190℃, stay the temperature for 2 hours, and furnace cooling. The hardness is 58-62HRC.
Quenching and Tempering
840-860°C for quenching, oil cooling, 660-680°C for tempering, furnace cooling or air cooling after heat preservation. A hardness of 197-217HBS is required. By high-temperature quenching, defects in the carbide structure can be eliminated, and by high-temperature tempering, the sorbite structure can be prepared for re-quenching. Increase toughness while increasing strength, then quench, heating temperature 820 °C – 840 °C, oil cooling.
Hot work and cold work of 100Cr6 Alloy bearing steel
It can be hot worked at 205°C to 538°C, and 100Cr6 Bearing steel can also be cold worked using conventional techniques in the annealed or normalized conditions, just as it can be hot worked at 205°C to 538°C.
Machinability of 100Cr6
There is no problem in machining 100Cr6 Steel by conventional methods. The machinability of the steel will be similar to that of mild steel, but weldability will be affected.
100CR6 Alloy steel Properties
-
- Standard high-speed steel grade
- Contains well-balanced alloy composition
- High toughness
- Great cutting-edge retention
- Superior hardness, 60-67 on Rockwell hardness scale (Rc) at room temperature
- High carbon chrome alloy steel
- Operates continually at temperatures up to 120°C
- Used to produce precision ball bearings and roller bearings
- Cost-effective
- Long working life
Applications Industry of100CR6 Alloy steel :
In addition to the bearings found in rotating machinery, 100Cr6 steel is also widely used for various other applications. The typical applications include valve bodies, pumps, fittings, high loads of wheels, bolts, double-headed bolts, gears, and internal combustion engines. It is common for electric locomotives, machine tools, tractors, steel rolling equipment, boring machines, railway vehicles, and mining machinery to use steel balls, roller, and shaft sleeves for transmission shafts. This steel is suitable for any dimension of balls, rollers, rings, and discs. It includes precision bearings, automotive components (brakes, steering, line shaft), bicycles, agitators, appliances, sliders, quick couplings, machine tools, lock mechanisms, conveyor belts, skateboards, pens, pumps, castors, measurement instruments, valves, and much more.
- Automotive components (Steering wheel, Breaks, Gears)
- Precision Bearings
- Pumps & Valves
- Mining
- Grinding Applications
- Conveyor Belts
- Ball Transfer Units
- Sliders
- Quick Release Couplings
- Windmill Bearings
- Machine Tooling