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CK40
Qilu
Product Description
CK40/1.1186 C40E Carbon QT Steel No-Alloy Steel
1: CK40 Steel Introduction
Ck40 steel has a higher (0.40%) carbon content for greater strength than the lower carbon alloys. It is hardenable by heat treatment, quench and tempering to develop 150 to 250 ksi tensile strength. CK40 steel cold deformation of high plasticity, generally for bending, calendering, bending and hammer arch processing, arc welding and contact welding welding performance is good, gas welding when the thickness is small, the shape of the requirements of strict or complex shape of the parts prone to cracking. Cutting machinability cold drawn or normalized state than the annealed state is good.
CK40 Steel Stock In Warehouse
2: CK40 Quality Standard
DIN17200 1987-ENG Steels-for-Quenching-and-Tempering.pdf
3: CK40 Steel Equivalent
| Country | China | Japan | Germany | USA |
| Standard | GB/T | JIS | DIN (W-Nr.) DIN 17200 | AISI/ASTM |
| Grade | / | / | CK40/1.1186 | / |
4: CK40 Steel Chemical Composition
| Grade | C | Si | Mn | P | S |
| CK40/1.1186 | 0.37-0.44 | 0.40 | 0.50-0.80 | 0.035 | 0.03 |
5: CK40 Steel Mechanical Properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
6: CK40 Steel Overviews
| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block | Thickness 6mm-500mm | |
| Width 20mm-1000mm | ||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
7: CK40 Steel Application
Ck40 is used for crankshafts, couplings and cold headed parts.
8: CK40 Steel Tolerance
Diameter(mm) | Tolerance | ||
Forged Steel Round Bar | 80-600 | Black Surface:0~+5 | Rough Machined or Turned:0~+3 |
650-1200 | Black Surface:0~+15 | Rough Machined or Turned:0~+3 | |
Hot Rolled Steel Round Bar | 16-310 | Black Surface:0~+1 | Peeled:H11 |
Cold Drawn Steel Round Bar | 6-100 | Black Surface:H11 | Peeled:H11 |
9: Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed/QT, rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed/QT, Black surface.
For hot forged block, usually the delivery condition is hot forged, annealed/QT, milled surface/Black surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed/QT, black surface.
For cold drawn bar, usually the delivery condition is cold drawn, annealed/QT, peeled/black surface
