Castings are classifi ed on the basis of the tensile strength of the iron in separately cast test bars. 1.1.1 This specifi cation subordinates chemical composition to tensile strength. 1.2 Castings produced to this specifi cation are graded on the basis of minimum tensile strength obtained in ...
Castings are classied on the basis of the tensile strength of the iron in separately cast test bars. 1.1.1 This specication subordinates chemical composition to tensile strength. 1.2 Castings produced to this specication are graded on the basis of minimum tensile strength obtained in special test...
ASTM A48 A48M-03
Class 40 in Specifi cation A48 A48M 5 Machinability 5 1 All machinable castings shall be limited in hardness at such locations on the castings as designated by the purchaser The maximum hardness at the locations on castings that are to be machined shall be a matter of agreement between the ...
美标ASTM A53 重量等 公称口径 英寸 NPS DN Designator Designator (mm) Thickness(mm) Class 1/2 15 0.840[21.3] 0.109[2.77] 0.147[3.73] 0.188[4.78] 0.294[7.47] 3/4 20 1.050[26.7] 0.113[2.87] 0.154[3.91] 0.219[5.56] 0.308[7.82] 1 25 1.315[33.4] 0.133[3.38] 0.179[4.55] 0.250[6.35] 0....
cation A 48, Class 30B. Gray Iron Castings, ASTM Speci?cation A 48, Class 40C. 5. Ordering Information 5.1 Orders for material to this speci?cation shall include the following information: 5.1.1 ASTM designation number and year of issue, 5.1.2 Class of iron required (see 4.1, Table 1...
Castings are classied on the basis of the tensile strength of the iron in separately cast test bars. 1.1.1 This specication subordinates chemical composition to tensile strength. 1.2 Castings produced to this specication are graded on the basis of minimum tensile strength obtained in special test...