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Carbon Steel Flange Chemical Composition

Carbon Steel Grades C Mn Si S Max. P Max.
Ck 45 0.42/0.50 0.50/0.80 0.15/0.35 0.04 0.04
Ck 55 0.52/0.60 0.60/0.90 0.15/0.35 0.04 0.04
Ck 60 0.57/0.65 0.60/0.90 0.15/0.35 0.04 0.04
SAE1006 0.08 max 0.25/0.40 0.10/0.30 0.05 0.04
SAE1008 0.10 max 0.30/0.50 0.10/0.30 0.05 0.04
SAE1010 0.08/0.13 0.30/0.60 0.10/0.30 0.05 0.04
SAE1018 0.15/0.20 0.60/0.90 0.10/0.30 0.05 0.04
SAE1020 0.18/0.23 0.30/0.60 0.10/0.30 0.09 0.04
SAE1030 0.28/0.34 0.60/0.90 0.10/0.40 0.05 0.04
SAE1035 0.32/0.38 0.60/0.90 0.10/0.40 0.05 0.04
SAE1040 0.37/0.44 0.60/0.90 0.10/0.40 0.05 0.04
SAE1045 0.40/0.50 0.60/0.90 0.10/0.40 0.05 0.04
En-8D 0.40/0.45 0.70/0.90 0.05/0.35 0.06 0.06
En-9 0.50/0.60 0.50/0.80 0.05/0.35 0.06 0.06

Carbon Steel Flange Mechanical Properties

Property Ultimate Tensile Strenght 0.2% Yield Strenght Elogation Reduction of Area Charpy Impact Toughness Hardness
Value 70 Min

Ksi(485 Mpa)

36 Min

Ksi (250 Mpa)

30% Min 22% Min 30 187 HBW MAX