UNI standards for steel materials

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.

Covers:

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.

Group of standards for structural and constructional steels

Group of standards for tool steels

Group of standards for stainless and heat resisting steels