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Rapid fire barrel for large warships
The Chinese company Qianchui Mechanical, using military technology, produces rapid-fire barrels for large naval artillery mounts Special steel: using our own developed special military barrel steel PCNM Produced sizes: diameter Φ50...
Description
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The Chinese company Qianchui Mechanical, using military technologies, produces rapid-fire barrels for large naval artillery installations
Special steel: using our own developed special military barrel steel PCNM
Produced sizes: diameter Φ50～Φ360mm × length ≤5000mm
Technological process: EAF+CP+VD vacuum refining of 8～12-ton large ingots + forging of the billet on a 4500 ton press + forging of a circle on a 1,800 ton forging press + post-forging normalization + pre-heat treatment by tempering + standard case hardening + multiple low tempering + surface shot blasting + inspection and delivery to warehouse
The deformation ratio of special steel is >8:1, the grain size is ≥8 points, and ultrasonic testing fully complies with the requirements.
Strength indicators: tensile strength ≥1500 MPa
Impact strength indicators: impact work at -40°C reaches AKU ≥20 J, fully consistent with the performance characteristics of the barrel material in conditions of extremely low temperatures.
To buy a good piston, only accept Qianchui.
Qianchui pistons are military quality.
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