低温高圧用鋳鋼品 社内規格 STEEL CASTINGS FOR LOW TEMPERATURE AND HIGH PRESSURE SERVICE Domestic Designation 4-1 SCPL 1 4-2 SCPL 11 4-3 SCPL 21 4-4 SCPL 31 Yield Point heat Cr Cu treatmen N/mm2 max. max. t min. P S C Si Mn max. max. Mo Ni 0.15 ≦0.60 ≦1.00 0.04 0.04 ≦0.50 0.25 0.50 ∼0.20 0.10 0.50 0.45 ≦0.60 0.04 0.04 0.35 0.50 ∼0.15 ∼0.80 ∼0.65 0.15 0.50 2.00 ≦0.60 0.04 0.04 0.35 0.50 ∼0.20 ∼0.80 ∼3.00 0.14 0.25 0.50 ∼0.18 ∼0.45 ∼0.70 0.04 0.04 0.40 3.00 0.35 0.50 ∼0.50 ∼4.00 Tensile Strength N/mm2 min. Q T 245 450 Q T 245 450 OQ OT 275 480 OQ OT 275 480 YONAGO STEEL CO.,LTD. Rd. Test Elongation of Area Temp. % % Absp.E min. min. J(2V) −45℃ 21 35 AV.≧18 −60℃ 21 35 AV.≧18 −75℃ 21 35 AV.≧21 21 35 −100℃ AV.≧21
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