1.1 These test methods for impact testing cover the details of apparatus, test specimens, and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins. 1.2 Units The values stated in either SI units or inch-pound units
ASTM A48 - Dandong Foundry. ASTM A48 - 2000 / ASTM A159 - 1993 / ASTM A319 - 1995. This standard is for gray iron castings used for general engineering use where tensile strength is a major consideration. Casting degrees are classified on the basis of the tensile strength of the cast test bars. ASTM A536 Standard for Ductile Iron CastingsASTM A536 is the American standard specification for ductile iron castings, the main material grades including:This specification covers castings made of ductile iron, also known as spheroidal or nodular cast iron, or S.G. iron. The followings are the main content for mechanical, chemical requirements, and also quality requirements. 1.
1.1 This specification covers cast iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and storm water applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test methods, inspection, certification, product markings, dimensions, and dimensional tolerances for extra-heavy and service cast iron ASTM A74 - 20 Standard Specification for Cast Iron Soil 1.1 This specification covers cast iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and storm water applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test methods, inspection, certification, product markings, dimensions, and dimensional tolerances for extra-heavy and service cast iron
Test bar size shall be related in cooling to the critical section of the casting and so specified. At least two test bars shall be cast and prepared for each casting lot, the lot size being designated. Test bars shall be cast in dry silica sand molds similar to that in which the castings are poured. Tension tests shall be under true axial loading. 30 35 CAST IRON - ASM InternationalGray cast iron grades are typically identified by the ASTM A48 classification system. In that stan-dard, classes range from 20 to 60. Each class repre-sents the tensile strength in ksi of a separately cast test bar poured from the iron that makes the casting. For example, a casting certified to ASTM A48 class 40 is cast with iron that has
Cast Iron Material Comparison Chart. Download PDF. Chemical Composition, max (unless range is given), %. Tensile Properties, min (unless range is given) Charpy. Specification. Grade or Class. Cast Iron Properties :anvilfire materials informationThe American Society for Testing Materials (ASTM) numbering system for grey cast iron is established such that the numbers corespond to the minimum tensile strength in KPSI. Thus an ASTM No. 20 cast iron has a minimum tensile strength of 20 KPSI. Note particularly that the tabulations are typical values. Multiply strength in KPSI by 6.89 to get
Dura-Bar continuous cast iron bar stock provides solutions, improves performance and results in significant long-term cost savings. Our material is the preferred choice over steel, castings and aluminum for many applications in a wide variety of industries. Dura-Bar® Gray Continuous Cast Iron - Gray Iron Bar Gray Iron. Dura-Bar® G2 is a pearlitic gray iron containing Type A graphite. G2 is built around ASTM A48 Class 40 gray iron, which is validated from a separately cast bar. These continuous cast bars made to this robust specification are a good fit for a variety of applications due to its good machinability, wear resistance and vibration damping properties.
Gray Iron Overview. Dura-Bar continuous cast gray irons contain flake graphite in matrix structures that range from all pearlite to pearlite plus ferrite depending on the grades. The flake configuration corresponds to ASTM Type VII and is available in Type D, size 6-8 or Type A, size 4-6. Gray Iron Gray Iron Grade Comparison Dura-BarGray Iron Overview. Dura-Bar continuous cast gray irons contain flake graphite in matrix structures that range from all pearlite to pearlite plus ferrite depending on the grades. The flake configuration corresponds to ASTM Type VII and is available in Type D, size 6-8 or Type A, size 4-6.
ASTM class 20 Standard gray iron test bars, as cast:13:ASTM class 25 Standard gray TEST COUPONS AND CASTING PROPERTIESfor cast test coupons that have a thickness similar to the casting. Properties from this ASTM standard keel block (A370) serve as the coupons. The legs of this keel block are 1.25 in. (32 those in Table 15-20 illustrate the mass effect in cast 8600 type Ni-Cr-Mo steel with carbon contents be-
Jun 18, 2015 · There are many grades of gray iron as per the ASTM A48 standard. While gray iron does not have a measurable yield strength, the range for tensile strength is 20,000 psi 60,000 psi. Impact Ductile iron has a greater resistance to impacts, and is able to resist a minimum of 7 foot pounds of impact (versus 2 pounds of impact for gray iron).ASTM A48 Standard for Gray Iron CastingsHowever, there is no need to write the material grades with A, B, C, S for casting foundry, because the A, B, C, S are just the requirements to the test bar. For example, ASTM A48 Class 20 will be detailed enough for iron foundries, it means the min. tensile strength of