标准号
 化学成分(%)
 
C
 Si
 Mn
 P
 S
 Cu
 
SWRS 62 A
 0.60~0.65
 0.12~0.32
 0.30~0.60
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 62 B
 0.60~0.65
 0.12~0.32
 0.60~0.90
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 67 A
 0.65~0.70
 0.12~0.32
 0.30~0.60
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 67 B
 0.65~0.70
 0.12~0.32
 0.60~0.90
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 72 A
 0.70~0.75
 0.12~0.32
 0.30~0.60
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 72 B
 0.70~0.75
 0.12~0.32
 0.60~0.90
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 75 A
 0.73~0.78
 0.12~0.32
 0.30~0.60
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 75 B
 0.73~0.78
 0.12~0.32
 0.60~0.90
 0.025 max.
 0.025 max.
 0.20 max.
 
SWRS 77 A
 0.75~0.80
 0.12~0.32
 0.30~0.60
 0.025 max.
 0.025 max.
 0.20 max.
 

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