This group of UNI standard specifications covers carbon and alloy steels, plates for boilers and other pressure vessels, sheets and strips, high-strength low-alloy steels, heat-treatable steels, hot and cold-rolled plates for cold forming, and spring steels.
This article contains standards for various types of steel pipes which specify requirements for high-temperature service, ordinary use and special applications such as fire protection use. Specifications for steel tubes list standard requirements for boiler and superheater tubes, general service tubes, steel tubes in refinery service, heat exchanger and condenser tubes, mechanical tubing, and structural tubing.
Review of UNI Standards for steel consists of 3 volumes. It contains formally approved UNI standard classifications, guides, practices, specifications, test methods, terminology and related material such as proposals.
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The following data is given for each standard: standard number and year, grade, chemical composition and mechanical properties (yield point, tensile strength, notch toughness). When deemed useful, steel type, manufacturing method, thickness of plate, heat treatment and other data are described.
This group of UNI standard specifications covers carbon and alloy steels, plates for boilers and other pressure vessels, sheets and strips, high-strength low-alloy steels, heat-treatable steels, hot and cold-rolled plates for cold forming, and spring steels. This article contains standards for various types of steel pipes which specify requirements for high-temperature service, ordinary use and special applications such as fire protection use. Specifications for steel tubes list standard requirements for boiler and superheater tubes, general service tubes, steel tubes in refinery service, heat exchanger and condenser tubes, mechanical tubing, and structural tubing. Steel casting specifications call out the standard properties for pressure purposes. The group of standards for tool steels, stainless and heat resisting steels is also presented.
UNI 3097 | 1975 | Ball and roller bearing steels |
UNI 3160 | 1983 | Wear-resisting sand casting |
UNI 3545 | 1980 | Spring steels |
UNI 3608 | 1983 | Steel casting |
UNI 4010 | 1975 | High strength castings |
UNI 4838 | 1980 | Free-cutting steels |
UNI 5462 | 1964 | Seamless tubes |
UNI 5598 | 1971 | Wire rod for drawing |
UNI 5571 | 1966 | Chain steels |
UNI 5949 | 1967 | Seamless tubes with low temperature impact test |
UNI 6102 | 1990 | Railway tyre |
UNI 6328-92 | Rails | |
UNI 6358-90 | Railway tyre | |
UNI 6363 | 1984 | Welded and seamless tubes for water mains |
UNI 6403 | 1986 | Tubes for use in motor vehicles |
UNI 6551 | 1969 | Steel for axles |
UNI 6786 | 1971 | Steel for axles |
UNI 6787 | 1971 | Steel for axles |
UNI 6860 | 1971 | Wheel centres (cast) |
UNI 7064 | 1982 | Strip for springs |
UNI 7065 | 1972 | Strip |
UNI 7091 | 1972 | Welded tubes |
UNI 7176 | 1973 | Steel for axles |
UNI 7316 | 1974 | Cast exposed to pressure |
UNI 7317 | 1974 | Castings tough at subzero subject to pressure |
UNI 7356 | 1974 | Steels for bolts nuts and rivets |
UNI 7382 | 1975 | Hot rolled special steel |
UNI 7464 | 1975 | Wheel centres (cast) |
UNI 7660 | 1977 | Steels for pressure vessels |
UNI 7729 | 1984 | Seamless tubes |
UNI 7730 | 1977 | Hollow bars for machining |
UNI 7746 | 1977 | Forged steels |
UNI 7806 | 1979 | Hollow sections (cold-rolled) |
UNI 7810 | 1973 | Hollow sections (cold-rolled) |
UNI 7846 | 1978 | Cementation steels |
UNI 7847 | 1979 | Steels for superficial hardening |
UNI 8077 | 1980 | Nitriding steels |
UNI 8373 | 1982 | Hot rolled finished products |
UNI 8550 | 1984 | Case hardening steels |
UNI 8551 | 1984 | Steels for superficial hardening |
UNI 8552 | 1984 | Nitriding steels |
UNI 8788 | 1985 | Cementation steels |
UNI 8863 | 1987 | Tubes |
UNI 8890 | 1987 | Steels for cold forming |
UNI 8893 | 1986 | Strip for springs |
UNI 8913 | 1987 | Welded tubes |
UNI EN 10025 | 1994 | Non alloy steels |
UNI EN 10028-2 | 1992 | Flat products for pressure purpose (elevated temperatures) |
UNI EN 10028-3 | 1992 | Flat products for pressure purpose (weldable fine grain steels, normalized) |
UNI EN 10083-1 | 1991 | Heat-treatable steels |
UNI EN 10083-2 | 1991 | Heat-treatable steels |
UNI EN 10130 | 1991 | Cold rolled flat products cold forming |
UNI EN 10207 | 1991 | Steels for simple pressure vessels |
UNI 6904-71 | 1971 | Seamless tubes |
UNI 7500-75 | 1975 | Steels for pressure vessels |
UNI 7737-77 | 1977 | Steel castings |
UNI 8317-81 | 1981 | Plates sheet and strip |
UNI 8366-82 | 1982 | Strips for springs |
UNI 29 55-82 | Tool steels |
UNI 3159-83 | Heat resisting sand castings |
UNI 3161-83 | Heat resisting sand castings |
UNI 3992-75 | Steels for internal combustion engine valves |
UNI 6900-71 | Stainless and heat resisting steels |
UNI 6901-71 | Stainless and heat resisting steels (semifinished products) |
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