NF A45-007-1983 IRON AND STEEL SMALL HOT ROLLED U IRON BARS DIMENSIONS AND TOLERANCES 《冶金产品 热轧小槽钢 尺寸和公差》.pdf

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NF A45-007-1983 IRON AND STEEL SMALL HOT ROLLED U IRON BARS DIMENSIONS AND TOLERANCES 《冶金产品 热轧小槽钢 尺寸和公差》.pdf_第1页
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1、NORME FRANAISE ENREGISTREE A VANT-PROPOS PRODUITS SIDRURGIQUES NF PETITS FERS U LAMINES A CHAUD Dimensions et tolrances A 45-007 Septembre 1983 La prsente norme est techniquement identique celle de mme indice dite en mars 1966. ia principale modification rdactionnelle rsulte de lintroduction dun art

2、icle (i rfrences M. 1 OBJET La prsente norme a pour objet de donner la liste des dimensions normalises des petits fers U lamins chaud dusage gnral, cest-dire livrs avec les tolrances de laminage conformes la norme NFA45210. 2 REFERENCES NF A 35-501 Aciers de construction dusage general - Nuances et

3、qualits - Tles minces, NF A 45-210 moyennes et fortes, larges plats, lamins marchands et poutrelles. Poutrelles normales et profils en U normaux - Tolrances de laminage. 3 DOMAINE DAPPLICATION Cette norme concerne les petits fers U lamins chaud dusage gnral, labors dans les nuances.et qualits dfinie

4、s par la norme NF A 35-501. 4 DESIGNATION Exemple de dsignation dun profil en petit U en acier, lamin chaud, de 40 mm de hauteur et de 35 mm de largeur dailes : U 40 x 35, NFA45-007 I 5 DIMENSIONS Voir tableau des dimensions en page 2. 6 TOLERANCES OE LAMWAGE Se reporter a la norme NFA45-210. Enregi

5、stre par dcision du 1983.08.23 pour prendre effet le 1983.09.23 La prsente norme remplace la norme de mme indice, enregistre le 28 septembre 1966 sfnor 1983 Droits de reproduction et de traduction rservs pour tous pays NF A 45-007 ler tirage 83.09 Eisen und Stahl - U Feineisen warmgewalzt - Abmessun

6、gen und zulssige Abweichungen Iron and Steel - Small hot rolled U iron bars - Dimensions and tolerances COPYRIGHT AFNOR Association Francaise De NormalisationLicensed by Information Handling ServicesAFNL NF A45-007 83 = 3032372 0007335 385 W Dsignations abrges NF A45-007 5 DIMENSIONS c r U- If Xi -

7、2- U30 x I5 U 35 x 17.5 u40 x 20 U 50 x 25 U 60 X 30 - kglm - 1,74 2.15 2,87 3,86 5,07 U70 x 40 6,17 u 40 x 35 U50 x 38 U65 x 42 4.87 5,59 - 7,09 Y x -. -X - Sec- *ions Caradiristiques rapportes laxe Dimensions Epaisseurs Ame Alle Rayons I Hau- Lar- - x-x y-r 12 cm4 a53 4,49 cm - 2 os - 2.5 0,62 -

8、55 0,67 3 0,81 - 3 0,91 - 3,s 1,32 - 3,s 1,31 - 3,5 1.33 3,s 1,37 - 4 1,42 - I5 - 17.5 - 20 - 495 - 5 - 5 - 6 2.57 1.14 7.58 3.79 6,73 25 16.8 60 30 31.6 431 8,62 70 40 13 6l,8 6.39 14,l 264 57,5 U 30 x 33 4.27 I 5.44 - 6,2 I _ 7,12 - 9.03 U) 33 7 40 - 50 - 65 35 7 - 7 - 73 7.05 I0,6 I7,7 38 - 42 14

9、1 (1) Les masses liniques m sont calcules en admettant pour lacier une masse volumique de 7.89 kilogrammes por dcimtre cube. Les dimensions indiques en caractres gras sont celles qui figurent dans IEuronorm EU 54 et sont utiliser de prfrence. COPYRIGHT AFNOR Association Francaise De NormalisationLicensed by Information Handling Services

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