JIS G4051 Carbon steel for Machine Structural Use. S55C steel is high carbon steel under the standard JIS G4051.
JIS G4051 S55C steel Similar to AISI 1050 and 1055 and DIN CK55.
JIS G4051 S55C steel application:agriculture greenhouse,trickle irrigation system, galvanized facilities for power transmission, galvanized steel pylons, lightning protection system, moulds for building, hanging facilities for curtain wall.
S55C steel Chemical composition %:
| Grade | Chemical composition %: | |||||||
| C | Si | Mn | S | P | Cr | Ni | Cu | |
| S55C | 0.52-0.58 | 0.15-0.35 | 0.60-0.90 | ≤0.035 | ≤0.030 | ≤0.20 | ≤0.20 | ≤0.30 |
S55C Steel mechanical properties:
| Grade | Mechanical properties: | |||||
| Tensile strength σb (Mpa) |
Yield strength σ0.2 (Mpa) |
Elongation δ5/（%） | Percentage reduction of areaψ (%) | Notched bar impact strength | compressive strength (MPa) |
|
| min | min | min | min | min | min | |
| S55C | 735 | 372 | 22 | 38 | 35J/cm2 | 350 |
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