Except for straightness, BS EN 10278 does not provide guidance on the measurement of the specified dimensions and how to verify whether or not the tolerance limits have been met. For superior machinability, longer tool life and superior quality in terms of tolerance and surface, choose our Prodec range. If you do see what you are looking, we would love to assist you and give you a quote today! For angles having legs or flanges over 6″, the length tolerance shall not exceed +3/16″ / and -1/8″. One Chicago Tube Drive , Romeoville, IL 60446. Unless otherwise specified, bars are furnished machine straightened to the following tolerances: NOTE: For unequal leg angles, the longer leg determines the tolerance for the length of each leg. The bar is deemed straight if the gap is less than that shown in the table in the 'Tolerances on straightness' section, above. Method of measuring deviation - Preferred Method B.1 from BS EN 10278: 1. Stainless Steel Grades, Compositions & Typical Mechanical Properties, Mechanical Properties apply to Rolled Products, Tolerances for bright drawn, ground, turned and polished stainless steel bars are included with the general standards for other bright steel bars in BS EN 10278.The standard mentions the shapes round, hexagon, square and flat, but not all of these cross sections have specific tolerance tables. SAE 304 stainless steel, otherwise referred to as A2 stainless steel or 18/8 stainless steel, is the most widely used stainless steel alloy on the market. For angles over 6 lb./ft, the weight tolerances shall not exceed +/- 4-1/2%. 45mm dia. Width governs the tolerances both width and thickness for rectangle bars. 1018. These are H9 TolerancesH9 Tolerances are 'all minus' tolerances: H = All Minus Tolerance  e.g. For angles having legs or flanges over 6″, the length tolerance shall not exceed +3/16″ / and -1/8″. Choosing "Keep me signed in" reduces the number of times you're asked to sign in on this device. No inquiry is too large or too small, we specialize in locating hard to find items. If the bar is 1.5" thick x 3.5" wide, the width tolerance of +/-0.006" will be the tolerance for the thickness as well, which is +/-0.006". Stainless Steel: Hex Bar (Metric) 304, 316 Cold Finish >6mm to ≤10mm 0/-.090mm: Stainless Steel: Hex Bar (Metric) 304, 316 Cold Finish >10mm to ≤18mm 0/-.111mm: Stainless Steel: Hex Bar (Metric) 304, 316 Cold Finish >18mm to ≤30mm 0/-.130mm: Stainless Steel: Hex Bar (Metric) 304, 316 Cold Finish >30mm to ≤50mm 0/-.160mm: Stainless Steel: Hex Bar A 1 metre long straight edge shall be placed on the surface of the bar at any position along it's length. 45mm dia. Squareness of Legs: The tolerance for the right angle between the legs is +/- 2 degrees. Request R = round; S = square; H = hexagonThe tolerances (or limit deviations) for the whole range tolerance "ISO" classes covering round and hexagon bars is shown in table below. J9 = +/- 0.031, K = All Plus Tolerance e.g. Our bar products come in rounds, hexagons and squares. Stainless Steel Bar. BS EN 10278 specifies the types of length and length tolerances in the format of the following table. (Identical with Table #11 of ASTM A484) Measurement is taken on the concave side of the bar with a straight edge. 0.25mm. The tolerance classes that are applicable to various finish conditions and sections are shown in the table below. These deviations only apply to steels with carbon contents up to 0.20%. The standard mentions the shapes round, hexagon, square and flat, but not all of these cross sections have specific tolerance tables. K9 = +0.062/ -0, ( The K tolerance is usually only applied to larger diameter bars - over 75mm, TOLERANCE IN mm FOR GIVEN TOLERANCE NUMBER.

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