ASTM A255 10 PDF

Originally Standard ASTM Hardenability Charts (81⁄2 by 11 in. pads of 50 charts) are approved in Last previous edition approved in as A – Purchase your copy of ASTM A – 10() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. Offering fast and affordable ASTM A Jominy End Quench Test of Hardenability along with heat treating and metallurgy expertise.

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L l CalculatedDI and Jominy hardenabililycurves are valid only within the chemicalrangesstatedabove. Then heat the assemblyand quench in accordaDce with 6.

NorE2-Othcf sizes ihlpesoi testspecimcns described rnd dc in 6. In casesof lack of reprodlcibility or of dillerencesbetweenlaboratories, indenterspacingshould be measu.

ASTM A确定钢的淬透性的标准检验方法_图文_百度文库

Equalions in rcpresent ing a leasrsquares polynomialfir of tbe daiacontained Table in 7 is listedin Table Link to Active This link will always route to the current Active version of the standard. Ilis recomnendedlhata tesrblock be interyosed between specimen aastm and the indente. The values given in parentheses are for t. After ihe quench, w: However, to facilitate melting lrocess control for higher alloy steels. The mold may also be usedto fom a 1.

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Multiplying Factors in Table 6 are calculated from the equations in Table I 1.

Referenced Documents purchase separately The documents listed below a55 referenced within the subject standard but are not provided as part of the standard. Ii is important to heat the specimen jn such an atmosphefethat p.

These refinements sandsof heatsof boron and non-boron Direcr of the strcamof water,a1arempentureof40 to 85″F 5 to 30″Cagainstthe botl’on1 facc of the specimentbr noi less ftan 10 min. The tesrspccinen shallbe 1.

They should bc mutually pddlel and the grindirg done in such a manner thai no change of rhe quencbedslrucruretakes place. ThenmakeRockwell hardness measurementson the C scaleon the specimen Fescribed in 6. The sheathshall preferablybe made from a plain low-carbon steel.

ASTM A – The Jominy End Quench Test of Hardenability

Dnabdi E,v0hg FaCu,r tn. Examplesof rhis method are Jal6 jn. Prcgrcs, Novenber87 Tlresesmaller specjmens shall be testedin accordance witb 5 of the method exceptlhat modilicatjons requiredin the waler streams are for queDching.

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The efects of phos phorousand sultur are no! The orifice size and distance the specrmen of r. Ifthe specimen Dotcold whenremovedfrom is the fixlure.

Then placethe healedspecimen lhe in supportso thrt jis bottom lace is 0. Cast testsneednot be normalized. Tl,e the hardenability steelby the end-quench rest consislsof waler quenchingone end of a cylindr;cal lest specimen 1.

Historical Version s – view previous versions of standard. For DI in millimetres. YM ehnents aG invited enhet to. Dn, dng Fictoc tor Non-Bo. The sample shall be held at the Iemperaturelislcd in Table I lbr I h and coolcd in air Tempcringofthe nonnalizedsampleto nnprole machinabil]! Dnnensions 1 the pretered specimenand of aD optional specimen Nole:

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