경강선재
(JIS G3506)
C Si Mn P S
이상이하이상이하이상이하이상이하
SWRH 42B 0.390.460.150.350.600.900.030.03
SWRH 62A 0.590.660.150.350.300.600.040.04
SWRH 62B 0.590.660.150.350.600.900.040.04
SWRH 72B 0.690.760.150.350.600.900.030.03
SWRH 82A 0.790.860.150.350.300.600.030.03
SWRH 82B 0.790.860.150.350.600.900.030.03
피아노선재
(JIS G3502)
C Si Mn P S
이상이하이상이하이상이하이상이하
SWRS 62A 0.60.650.120.320.30.60.0250.025
SWRS 62B 0.60.650.120.320.60.90.0250.025
SWRS 82A 0.80.850.120.320.30.60.0250.025
SWRS 82B 0.80.850.120.320.60.90.0250.025
연강선재
(JIS G3505)
C Mn P S
이상이하이상이하이상이하
SWRM 6 0.080.600.040.04
SWRM 8 0.100.600.040.04
SWRM 10 0.080.130.300.600.040.04
SWRM 12 0.100.150.300.600.040.04
연강선재
(SAE/AISI)
C Mn P S
이상이하이상이하이상이하
1006 0.080.250.400.040.05
1008 0.100.300.500.040.05
1010 0.080.130.300.600.040.05
1012 0.100.150.300.600.040.05
스프링강
(SAE/AISI)
C Mn Si P S Cr
이상이하이상이하이상이하이하이하이상이하
SAE9254 0.510.590.600.801.201.60 0.0350.041.201.60