High Hardness Hot Forged Q355e S355K2 Carbon Seamless Steel Pipes for Sale
1: DIN S355K2 steel introduction
S355K2 belongs to the European standard low alloy high strength structural steel plate, "S" stands for structural steel, "355" stands for the specified minimum yield point (MPa), which will be reflected in its mechanical properties. "K2" means that the impact energy at -20ºC is not less than 40 J ("K" means the required 40 J and "2" means -20ºC). It carries high strength, high toughness, fatigue resistance, impact resistance, wear resistance, corrosion resistance, welding and easy processing properties.
2: DIN S355K2 Steel equivalent
| Country | China | Japan | Germany | USA | British |
| Standard | GB/T 1591 | JIS | DIN (W-Nr.) EN 10025-2 / DIN17100 | AISI/ASTM | BS |
| Grade | Q355E | S355K2 |
3: DIN S355K2 steel chemical composition
| Grade | C | Si | Mn | P | S | Cr | Cu | Ni |
| S355K2 | 0.24 | 0.60 | 1.70 | 0.035 | 0.035 | / | 0.60 | / |
| Q355E | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | 0.30 | 0.40 | 0.30 |
4: DIN S355K2 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.
5: DIN S355K2 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 | |
| Application | S355K2 is used to manufacture all kinds of construction machinery. Such as drilling machine, electric shovel, electric wheel dumper, mining truck, excavator, loader, bulldozer, various cranes, coal mine hydraulic support and other mechanical equipment and other structural parts used in mine and various engineering construction. | |
6: Delivery condition
For hot forged bar, usually the delivery condition is hot forged, annealed/solid solution, rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed/solid solution, Black surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed/solid solution, black surface.
For cold drawn bar, usually the delivery condition is cold drawn, annealed/QT, peeled/black surface
We are professional manufacturer for many years. we can provide a wide range of steel products.
Usually bundling for large diameter,small diameter bars in bulk or as customer's demand.
The hardness after heat treatment is higher than D2/1.2379/Cr12Mo1V1, and can reach 61-63HRC after high-temperature tempering (525 ± 5 ℃); In terms of strength and wear resistance, it exceeds Cr12Mo1V1, and its toughness is higher than D2/1.2379/Cr12Mo1V1; The manufactured molds rarely have cracks and fissures, greatly improving their service life; The residual stress after wire cutting processing is smaller than that of Cr12Mo1V1; The cutting and grinding performance exceeds Cr12Mo1V1.
Suitable for manufacturing precision punching dies and stamping dies for cold forging, deep drawing, and wire rolling for wire cutting processing.
