钢号 Si Mn P
≤ S②
≤ Cr Mo V W 其他
ASTM UNS
S1 T41901 0.40-0.55 0.15-1.20 0.10-0.40 0.030 0.030 1.00-1.80 ≤0.50 ≤0.50 1.50-3.00 —
S2 T41902 0.40-0.55 0.90-1.20 0.30-0.50 0.030 0.030 — 0.30-0.60 0.30-0.60 — —
S4 T41904 0.50-0.65 1.75-2.25 0.60-0.95 0.030 0.030 0.10-0.50 — — — —
S5 T41905 0.50-0.65 1.75-2.25 0.60-1.00 0.030 0.030 0.10-0.50 0.20-1.35 0.20-1.35 — —
S6 T41906 0.40-0.50 2.00-2.50 1.20-1.50 0.030 0.030 1.20-1.50 0.30-0.50 0.20-0.40 — —
S7 T41907 0.45-0.55 0.20-1.00 0.20-0.90 0.030 0.030 3.00-3.50 1.30-1.80 ≤0.35 — — |
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