C55 steel structure,C55 steel structure Mechanical property

C55 steel structure has reliable mechanical property, good formability and excellent cutability performance, which is widely used in various industries.Such as architecture, bridge construction, marine craft, heavy machine and other structure parts.

C55 steel structure Chemical composition：
C(％): 0.52～0.60
Si(％): ≤0.40
Mn(％): 0.60～0.90
P(％)≤: 0.045
S(％)≤: 0.045
Cr(％): ≤0.40
Mo(％): ≤0.10
Ni(％): ≤0.40
Other: Cr+Mo+Ni≤0.63

C55 steel structure Mechanical property at different heat treatment practice：
Mechanical property ≥|σb/MPa: 645
Mechanical property ≥|σs/MPa: 380
Mechanical property ≥|δ(％): 13
Mechanical property ψ(％)|≥: 35
Hardness /≥HBS (untreated): 255min.
Hardness /≥HBS (annealed): 217min.

C55 steel structure Finished goods condition:：
hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering any other conditions based on the customer's requirement.

C55 steel structure Surface conditions: scaled (hot working finished)/ground/rough machining/fine machining based on the customer's special requirements.

C55 steel structure Furnaces for metallurgical processing: EAF + LF/ VD/ VOD/ AOD/ ESR/Vacuum consumable electrode.

C55 steel structure Ultrasonic inspection: 100% ultrasonic inspection for any inperfection or based on the customer's requirement.

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