The current position:

STEEL CASTINGS

release time:2015-12-03 09:12
1 This Chapter applies to works approval and inspection of steel castings intended for use in the hull structure and machinery structure as required in CCS Rules for Materials and Welding.
2 For manufacturers using intermediate frequency furnace for smelting, CCS will not approve such manufactured steel castings for hull structure (stems, stern frames, rudder horns, anchors and screw shaft brackets) generally, unless specially agreed by CCS if the manufacturers have the secondary refining equipment.
3 The requirements for castings for crankshafts, propellers, boilers, pressure vessels and piping systems, and ferritic castings for low temperature service and austenitic stainless steel castings may be referred to in this Chapter, and additional properties tests may be carried out for works approval and product inspection under the approval by CCS.
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W06STEEL CASTINGS.pdf
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