冲击试样加工尺寸汇总.xlsx

公称尺寸 机加工偏差 公称尺寸长度 l 55 mm ±0.60 mm 55 mm高度 a h 10 mm ±0.075 mm 10 mm宽度 a w——标准试样 10 mm ±0.11 mm 10 mm——小试样 7.5 mm ±0.11 mm 7.5 mm——小试样 5 mm ±0.06 mm 5 mm——小试样 2.5 mm ±0.04 mm —缺口角度 1 45° ±2° —缺口底部高度 2 8 mm ±0.075 mm 8 mmb5 mmb缺口根部半径 3 0.25 mm ±0.025 mm 1 mm缺口对称面-端部距离 a 4 27.5 mm ±0.42 mm 27.5 mm缺口对称面-试样纵轴角度 — 90° ±2° 90°试样纵向面间夹角 5 90° ±2° 90°Length of specimen (L)Centering of notch (L/2)Cross-section dimesionsNotch length to edgeGB/T229-2007 金属材料 夏比摆锤冲击试验方法试样尺寸与偏差V型缺口试样 U型缺口试样名称符号及序号±0.1 %±0.1 %±0.1 %a 除端部外，试样表面粗糙度应优于 Ra 5 μm。

b 如规定其他高度，应规定相应偏差c 对自动定位试样的试验机，建议偏差用±0.165 mm代替±0.42 mm5 mm3.3 mm2.5 mmNameStandard Subsize SpecimenASTM A370-12Standard Test Methods and definitions for mechanical testing of steelproductsStandard Full Size SpecimenV型缺口试样机加工偏差Size90° ±2°55 mm10 mm7.5 mm6.7 mm+0,-2.5 mm±1 mm±0.075 mm±0.1 %±0.1 %Adjacent sides shall be atAngle of notchRadius of notchNotch depthFinish requirements±1°±0.025 mm±0.025 mm2 μm on notched surface and opposite face; 4 μmon othertwo surfaces.90°45°0.25 mm2 mm±10 min机加工偏差±0.60 mm±0.11 mm±0.11 mm±0.11 mm±0.06 mm——±0.09 mm±0.09 mm±0.07 mm±0.42 mmc±2°±2°GB/T229-2007 金属材料 夏比摆锤冲击试验方法试样尺寸与偏差U型缺口试样a 除端部外，试样表面粗糙度应优于 Ra 5 μm。

b 如规定其他高度，应规定相应偏差c 对自动定位试样的试验机，建议偏差用±0.165 mm代替±0.42 mmLo/mm Lc/mm 试样编号 Lo/mm Le/mm25 R120 R215 R310 R48 R56 R65 R73 R8Lo/mm Lc/mm 试样编号 Lo/mm Le/mm12.5 R115 R220 R325 R430 R5in. mm in. mm in.0.5 12.5 0.350 8.75 0.252.000±0.00550.0±0.10 1.400±0.005 35.0 ±0.10 1.000±0.0050.5000±0.010 12.5±0.25 0.350±0.007 8.75 ±0.18 0.250±0.0053⁄8 10 1⁄4 6 3⁄16注2：试样总长度取决于夹持方法，原则上L t＞L c+4do≥12 5.65≥Lo+do/2仲裁试验：Lo+2d10do≥Lo+do/2仲裁试验：Lo+2do注1：如相关产品标准无具体规定，优先采用R2、R4或R7试样注1：如相关产品标准无具体规定，优先采用R2、R4或R7试样注2：试样总长度取决于夹持方法，原则上L t＞L c+4do。

矩形横截面比例试样do/mm r/mm k=5.65 k=11.3≥0.75d 5do≥Lo+do/2仲裁试验：Lo+2d10do≥Lo+do/2仲裁试验：Lo+2doGB/T 228.1-2010 金属材料 拉伸试验第1部分：室温试验方法k=5.65 k=11.3do/mm圆形横截面比例试样r/mmFIG. 4 Standard 0.500-in. (12.5-mm) Round Tension Test Specimen with 2-in. (50-mm) Gauge Length and Examples of Small-SizeSpecimens Proportional to the Standard SpecimensASTM A370-12Standard Test Methods and definitions for mechanical testing of steel productsDIMENSIONSNominal DiameterSmall-Size Specimens Proportional to StandardG—Gauge lengthD—Diameter (Note 1)R—Radius of fillet, minStandard Specimen21⁄4 60 13⁄4 45 3⁄16NOTE 1—The reduced section may have a gradual taper from the ends toward the center, with the ends not more than 1 percent larger indiameter thanthe center (controlling dimension).NOTE 2—If desired, the length of the reduced section may be increased to accommodate an extensometer of any convenient gauge length.Referencemarks for the measurement of elongation should, nevertheless, be spaced at the indicated gauge length.NOTE 3—The gauge length and fillets shall be as shown, but the ends may be of any form to fit the holders of the testing machine in such a waythatthe load shall be axial (see Fig. 9). If the ends are to be held in wedge grips it is desirable, if possible, to make the length of the grip section greatenoughto allow the specimen to extend into the grips a distance equal to two thirds or more of the length of the grips.NOTE 4—On the round specimens in Fig. 5 and Fig. 6, the gauge lengths are equal to four times the nominal diameter. In some productspecificationsother specimens may be provided for, but unless the 4-to-1 ratio is maintained within dimensional tolerances, the elongation values may not becomparablewith those obtained from the standard test specimen.NOTE 5—The use of specimens smaller than 0.250-in. (6.25-mm) diameter shall be restricted to cases when the material to be tested is ofinsufficientsize to obtain larger specimens or when all parties agree to their use for acceptance testing. Smaller specimens require suitable equipment andgreaterskill in both machining and testing.A—Length ofreduced section,min(Note 2)60 — 6±0.120 ±0.25 8±0.125 +50 10±0.125 — 12.5±0.165 — 16±0.1M30×3.5 — 20±0.1本体试样的尺寸GB/T 9439-2010灰 铸 铁 件试样直径d omm单铸试棒加工的试样尺寸名称 尺寸mm 加工公差 mm圆柱状螺纹状夹持端最小直径d 1最小长度L p螺纹直径与螺距d 2最小的平行段长度L c试样直径d o圆弧半径 R30 — 25±0.132±0.1注 1：在铸件应力最大处或铸件最重要工作部位或在能制取最大试样尺寸的部位取样。

注 2：加工试样时应尽可能选取最大尺寸加工试样螺纹状夹持端最小长度L 3试样类型编号R01R02R03R04R05R06R07R08试样类型编号R01R02R03R04R05mm in. mm in. mm6.25 0.16 4 0.113 2.525.0 ±0.10 0.640±0.005 16.0 ±0.10 0.450±0.005 10.0 ±0.106.25 ±0.12 0.160±0.003 4.00 ±0.08 0.113±0.002 2.50 ±0.055 5⁄32 4 3⁄32 2注2：试样总长度取决于夹持方法，原则上L t＞L c+4do注1：如相关产品标准无具体规定，优先采用R2、R4或R7试样注1：如相关产品标准无具体规定，优先采用R2、R4或R7试样注2：试样总长度取决于夹持方法，原则上L t＞L c+4do矩形横截面比例试样k=11.3GB/T 228.1-2010 金属材料 拉伸试验第1部分：室温试验方法k=11.3圆形横截面比例试样FIG. 4 Standard 0.500-in. (12.5-mm) Round Tension Test Specimen with 2-in. (50-mm) Gauge Length and Examples of Small-SizeSpecimens Proportional to the Standard SpecimensASTM A370-12Standard Test Methods and definitions for mechanical testing of steel productsDIMENSIONSSmall-Size Specimens Proportional to Standard32 3⁄4 20 5⁄8 16NOTE 1—The reduced section may have a gradual taper from the ends toward the。