- 1.1151, DIN Ck22, AISI 1022 round bar
- 1.1151, DIN Ck22, AISI 1022 forging
- 1.1151, DIN Ck22, AISI 1022 sheet
- 1.1151, DIN Ck22, AISI 1022 flat bar
- 1.1151, DIN Ck22, AISI 1022 pipe
1.1151, DIN Ck22, AISI 1022
Production specification
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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1.1151, DIN Ck22, AISI 1022
Designation by Standards
Brand Name | LH No. | Mat. No. | DIN | EN | AISI |
CK22 | 615 | 1.1151 | Ck22 | - | 1022 |
Chemical Composition (in weight %)
C | Si | Mn | Cr | Mo | Ni | V | W | Others |
0.20 | max. 0.40 | 0.55 | max. 0.40 | max. 0.10 | max. 0.40 | - | - | (Cr+Mo+Ni)= max. 0.63 |
Description
CK22 steel is a slightly higher carbon and manganese content plain carbon steel than 1020. It is used for its somewhat greater strength while still having good ductility.
Applications
CK22 steel is typically used for moderate strength structural applications such as cold formed fasteners and bolts. It is often used in the case hardened condition.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.85
Soft Annealing
Heat to 650-700oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 176.
Normalizing
Normalizing temperature: 880-910oC/air.
Hardening
Harden from a temperature of 860-890oC followed by water quenching.
Tempering
Tempering temperature: 540-680oC.
Mechanical Properties in Hardened+Tempered Condition
Diameter (mm) | 0.2 % proof stress (N/mm2) | Tensile strength (N/mm2) | Elongation A5 (%) | Reduction (%) | Impact strength (J) |
up to 16 | 350 | 550-700 | 20 | 50 | 55 |
17-40 | 300 | 500-600 | 22 | 50 | 55 |
up to 100 | 230 | 400-550 | 27 | - | - |
101-160 | 210 | 380-520 | 25 | - | - |
Forging
Hot forming temperature: 1100-850oC.
Machinability
Machinability of CK22 steel is quite good, rating a 70% against the standard 1112 steel of 100% machinability.
Corrosion Resistance
This steel is not corrosion resistant. it will rust unless protected.
Welding
Weldable by all standard methods. However for heavy sections the use of pre-heat and post- heat is advised.
Cold working
Cold working by conventional methods is readily accomplished. Following severe cold working an anneal may be required.
Mechanical properties
Heat treatment
Machining
Welding performance
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