Pearlite is a two-phased, lamellar (or layered) structure composed of alternating layers of ferrite (87.5 wt%) and cementite (12.5 wt%) that occurs in some steels and cast irons.During slow cooling of an iron-carbon alloy, pearlite forms by a eutectoid reaction as austenite cools below 723 °C (1,333 °F) (the eutectoid temperature). The system is based on the chemical compositions of the steels and alloys. 65,000 Typical: 65,000 Min. It is a feminine metal, a symbol of purity and is connected to the goddesses and spirits. It is associated with philosophical traits of intuition, self-reflection, and inner wisdom. ; Shop 24/7 with Alro. ASTM's steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them. ; Over 70 locations in 12 states means high quality service and fast delivery to you. Steel Alloy 4340 - Normalized (@870 °C) 862 (125) 1280 (185.5) 12.2: Steel Alloy 4340 - Oil-quenched and tempered (@315 °C) 1620 (235) 1760 (255) 12: Supplements: Link: Usage: Yield strength of steel table: Yield strength values for various steel alloys: Reference: Callister.W.D,JR. Steels Medium Manganese steel .20-.30 300-500 SAE T 1330 steel .30 400-600 SAE T 1340 steel .40 500-800 SAE T 1350 steel .50 600-900 12% Manganese steel 1.25 Usually not required High Tensile Manganese moly steel .20 300-500 Steels Manten steel .30 max 400-600 Armco high Tensile steel .12 max Up to 200 Mayari R steel .20 max Up to 300 1(c) Recommended use of the chemical and restrictions on use: These products are sold to all steel-consuming industries including automotive, Alloy steel is a class of steel that, in addition to carbon, is alloyed with other elements, ranging from 1 wt.% to 50 wt.%, which are used to enhance the material’s various properties [1].. 1(a) Product Identifier used on Label: Carbon and Alloy Steel Rod or Bar 1(b) Other means of identification: Refer to Section 16 for product synonyms. 1020. the first digit indicates that this is plain carbon steel. Alro stocks metals, industrial supplies and plastics. Carbon or alloy steel with or without boron: 1/2" thru 1-1/2" 85,000: 92,000: 120,000: Stainless Markings Vary: 18-8 & 316 Stainless Steel alloy with chromium and nickel: All sizes thru 1" N/A: 20,000 Min. Silver is a real metal and is connected to the Moon. Example AISI/SAE No. Steel in general is an alloy of carbon and iron, it does contain many other elements, some of which are retained from the steel making process, other elements are … It is one of the most versatile metals, one of the 3 base metals in Alchemy. These elements commonly include manganese, nickel, chromium, molybdenum, vanadium, silicon, and boron. Alloy steels and carbon steels can be designated with specific grades by a four-digit AISE/SAE numerical index system. ; Since 1948, Alro has been focused on exceeding our customers’ expectations. 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