ASTM A694 HIGH YIELD CARBON STEEL PIPE FLANGES
ASTM A694 F65, F60, F42, F46, F52, F56 & F70 High Yield Carbon Steel Flanges
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ASTM A694
ASTM A694 is the specification to cover carbon and alloy steel forgings for pipe flanges,fitting, valves and other parts for high-pressure transmission service. Applications include, but are not limited to,in wellhead and Christmas-tree manifold equipment in oil and gas industry. The two numbers in each grade indicate the yield strength requirements, in ksi.
High Yield Flange Types
Raised Face Welding neck flanges
Raised Face slip on flanges
Raised Face socket welding flanges
Raised Face threaded flanges
Raised Face blind flanges
Raised Face slip on plate flanges
Raised Face long weld neck flanges
Raised Face orifice flanges
Ring Joint Flanges
Raised Face lap joint flanges
High Yield Flange Specification
ASTM A694
High Yield Flange Ratings
150#, 300#,400#, 600#, 900#, 1500#, 2500#
High Yield Flange Dimensions
High Yield Flange Weight
ASTM A694 F65, F60, F52, F42 & F70 High Yield Flanges CHEMICAL COMPOSITION
Element
F42 Content, %
F52 Content, %
F60 Content, %
F65 Content, %
F70 Content, %
Carbon (C)
0.13~0.20
0.16~0.22
0.17~0.23
0.17~0.23
0.06~0.10
Silicon (Si)
0.20~0.40
0.15~0.40
0.15~0.40
0.15~0.40
0.20~0.40
Manganese (Mn)
1.20~1.60
1.10~1.40
1.20~1.50
1.30~1.60
1.10~1.40
Phosphorous (P)
≤ 0.030
≤ 0.025
≤ 0.020
≤ 0.025
≤ 0.020
Sulfur (S)
≤ 0.020
≤ 0.012
≤ 0.012
≤ 0.015
≤ 0.010
Molybdenum (Mo)
0.20~0.35
0.45~0.60
0.45~0.65
1.20~1.70
Nickel (Ni)
≤ 0.30
≤ 0.50
0.40~1.00
≤ 0.30
0.20~0.40
Chromium (Cr)
≤ 0.30
≤ 0.30
≤ 0.25
≤ 0.30
≤ 0.30
Copper (Cu)
≤ 0.25
≤ 0.25
≤ 0.25
≤ 0.25
≤ 0.25
Vanadium (V)
≤ 0.050
0.02~0.06
Niobium (Nb)
0.025~0.050
Pcm
≤ 0.25
Carbon Equivalent
≤ 0.48
≤ 0.48
≤ 0.48
≤ 0.43
≤ 0.48
*Heat treatmentof quenching and tempering are required
ASTM A694 F65, F60, F52, F56, F42 & F70 High Yield Flanges MECHANICAL PROPERTIES
Grade
Yield Strength, Min KSI, (Mpa )
Tensile Strength, Min KSI, (Mpa)
Elongation in 2 in.
Or 50 mm, min %
F42
42 (290 )
60 (415 )
20
F46
46 (315 )
60 (415 )
20
F48
48 (330 )
62 (425 )
20
F50
50 (345 )
64 (440 )
20
F52
52 (360 )
66 (455 )
20
F56
56 (385 )
68 (470 )
20
F60
60 (415 )
75 (515 )
20
F65
65 (450 )
77 (530 )
20
F70
70 (485 )
82 (565 )
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