IS 7174 : 1974 Carbon steel tubes for use on board ships for working pressure 0.7 to 1.7 N/mm2

1 Scope

1.1 This standard covers the requirements of welded andseamless, plain-end mild steel tubes for pressures of 0.7 N/mm² up to and including 1.7 N/mm² andtemperature up to 220�C. The requirements for feedwater pipes and heated oil pressure pipes are not covered by thisstandard.

Note 1 - kgf = 9.8066 N.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 228 : 1959 Methods of chemical analysis ofpig iron, cast iron andplain carbon and low alloy steels

IS 1387 : 1967General requirements for the supply of metallurgicalmaterials

IS 1894 : 1962 Methodfor tensile testing of steel tubes

IS 2328 : 1963 Methodfor flattening test on steel tubes

IS 2416 : 1963Specification for boiler and superheater tubes for marineand naval purposes

IS 4736 : 1968Specification for hot-dip zinc coatings on steel tubes