볼트 물성표

Length Tolerances on Stud Lengths-in. 　Diameter L ≤ 6in L > 6in Over 5/16 in. to 3/4 in. Over 3/4 in. to 1-1/4 in. Over 1-1/4 in.      ± 1/16    ± 1/8    ± 1.4 ± 1/8  ± 3.16 ± 1.4

ANSI B16.5

BOLT Grade C(%) Mn(%) P(%) S(%) Si(%)  ASTM A193 Gr. B7 0.37~0.49 0.65~1.10 0.035 Max. 0.040 Max. 0.15~0.35  ASTM A193 Gr. B7M 0.37~0.49 0.65~1.10 0.035 Max. 0.040 Max. 0.15~0.35  ASTM A193 Gr. B16 0.39~0.47 0.45~0.70 0.035 Max. 0.040 Max. 0.15~0.35  ASTM A193 Gr. B8 0.08 Max. 2.00 Max. 0.045 Max. 0.030 Max. 1.00 Max.  ASTM A193 Gr. B8M 0.08 Max. 2.00 Max. 0.045 Max. 0.040 Max. 1.00 Max.  ASTM A320 Gr. L7 0.38~0.48 0.75~1.00 0.035 Max. 0.030 Max. 0.15~0.35  ASTM A320 Gr. B8 0.08 Max. 2.00 Max.  0.045 Max. 0.030 Max. 1.00 Max.  ASTM A320 Gr. B8M 0.08 Max. 2.00 Max. 0.045 Max. 0.030 Max. 1.00 Max.  JIS G4105 SCM 440 0.38~0.43 0.30~0.85 0.030 Max. 0.030 Max. 0.15~0.35  JIS G4107 SNB 5 0.10 Min. 1.00 Min. 0.040 Max. 0.030 Max. 1.00 Max.  JIS G4107 SNB 7 0.38~0.48 0.75~1.00 0.040 Max. 0.040 Max. 0.20~0.35  JIS G4107 SNB 16 0.36~0.44 0.45~0.70 0.040 Max. 0.040 Max. 0.20~0.35 NUT  ASTM A194 Gr. 2H 0.40 Min. 1.00 Max. 0.040 Max. 0.050 Max. 0.40 Max.  ASTM A194 Gr. 2HM 0.40 Min. 1.00 Max. 0.040 Max. 0.050 Max. 0.40 Max.  ASTM A194 Gr. 4 0.40~0.50 0.70~0.90 0.035 Max. 0.040 Max. 0.15~0.35  ASTM A194 Gr. 7 0.39~0.49 0.65~1.10 0.040 Max. 0.040 Max. 0.15~0.35  ASTM A194 Gr. 8 0.08 Max. 2.00 Max. 0.045 Max. 0.030 Max. 1.00 Max.  ASTM A194 Gr. 8M 0.08 Max. 2.00 Max. 0.045 Max. 0.030 Max. 1.00 Max.  JIS G4051 S45C 0.42~0.48 0.60~0.90 0.030 Max. 0.035 Max. 0.15~0.35 BOLT Grade Cr(%) Mo(%) V(%) Ni(%) Min. Tempering Temperature ℉(℃)  ASTM A193 Gr. B7 0.75~1.20 0.15~0.25     1,100(593℃)  ASTM A193 Gr. B7M 0.75~1.20 0.15~0.25     1,150(620℃)  ASTM A193 Gr. B16 0.80~1.15 0.50~0.65 0.25~0.35   1,200(650℃)  ASTM A193 Gr. B8 18.00~20.00     8.00~10.50 Carbide Solution Treated  ASTM A193 Gr. B8M 16.00~18.00 2.00~3.00   10.00~14.00 Carbide Solution Treated  ASTM A320 Gr. L7 0.80~1.10 0.15~0.25        ASTM A320 Gr. B8 18.00~20.00     8.00~10.50    ASTM A320 Gr. B8M 16.00~18.00 2.00~3.00        JIS G4105 SCM 440 0.90~1.20 0.15~0.30     530 ~ 630℃  JIS G4107 SNB 5 4.00~6.00 0.40~0.65     (595℃)  JIS G4107 SNB 7 0.80~1.10 0.15~0.25     (595℃)  JIS G4107 SNB 16 0.80~1.15 0.50~0.65 0.25~0.35   (650℃) NUT  ASTM A194 Gr. 2H         850(455℃)  ASTM A194 Gr. 2HM         1,150(620℃)  ASTM A194 Gr. 4   0.20~0.30     1,100(595℃)  ASTM A194 Gr. 7 0.75~1.20 0.15~0.25     1,100(595℃)  ASTM A194 Gr. 8 18.00~20.00     8.00~10.50    ASTM A194 Gr. 8M 16.00~18.00 2.00~3.00   10.00~14.00    JIS G4051 S45C         550~650℃