1.Standard:CB/T3728-95 2.Material: Stainless steel or steel 3.Size: according to customer requirements 4.Certificate: CCS
Quick opening and closing hatch cover used for small size hatch cover of various ships to meet ISO5778-94
Technical Requirements:
1. Main Part Material:
Part Name | Material | ||
Name | Trademark | Standard No. | |
Cover, hoarding | Hull structural steel | Q235-A | GB700-88 |
Carbon Structural Steel | Q235-A | GB700-88 | |
Lock, handle, hinge plate, stop the device, eye plate | Carbon Structural Steel | Q235-A | GB700-88 |
Handle, shaft, sleeve | Quality carbon structural steel | 20 | GB699-88 |
Grips bolt, with tongue pin, pin | Stainless steel rod | 1Cr18Ni9Ti | GB1220-84 |
Quality carbon structural steel | 20 | GB699-88 | |
Wing nuts, bushings, pulleys, | Lead brass rods | HPb59-1 | GB4425-84 |
Ordinary brass | H62 | GB4425-84 | |
Double torsion spring | Spring steel | 60Si2Mn | GB1222-84 |
Seals | Aging resistance rubber | ||
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