API Casing Steel Grades | Ultimate Tensile Strength | Strength Of ...

June 11, 2018 | Author: Anonymous | Category: Documents
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M65 is the only steel grade among the general purpose casing grades with the requirement of a restricted maximum hardnes...

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Content Overview 1.

API Casing Steel Grades 1.

Common Application Casing (H40, J55, K55, M65, N80, !5"

2.

Corrosion#esistant Casing ($80 C!0

3.

'eep ell ell Casing ()&&0, *&+5"



%!5, C&&0"



API Casing Steel Grades Most casing steel grades are largely of the same chemical composition. What gives each grade its distinct properties is the kind of heat treatment applied. Casing grades mainly dier in their yield strength tensile strength and hardness. Additional tests re!"ired #y API $C% for certain gro"ps of casing make s"re that each casing grade is s"ita#le for its intended application.

Common Application Casing &'() *$$ +$$ M,$ -) /0$ "e to their loer price compared to other steel grades casing pipes of grades *$$ +$$ and -) are a pop"lar choice for ells itho"t stringent anti4corrosion or strength re!"irements. re!"irements. M,$ and /0$ are neer grades each ith their on 5eld of application. %hese casing grades mainly dier in their yield strength and tensile strength.

H40 •

Yield strength6 strength6 27,4$$2 MPa &()4) ksi



Minimum tensile strength6 strength6 (1( MPa &,) ksi



API color code6 code 6 8ither none or 1 #lack #and

 !! •

Yield strength6 strength6 3704$$2 MPa &$$4) ksi



Minimum tensile strength6 $17 MPa &7$ ksi



API color code6 1 #right green #and

"!! API grade +$$ has the same yield as grade *$$ #"t its minim"m tensile strength is a#o"t 2,9 higher compared to *$$. •

Yield strength6 3704$$2 MPa &$$4) ksi



Minimum tensile strength6 ,,$ MPa &0$ ksi



API color code6 2 #right green #ands

M#! -ot "sed that often M,$ is the only steel grade among the general p"rpose casing grades ith the re!"irement of a restricted ma:im"m hardness. •

Yield strength6 ((4$, MPa &,$4$ ksi



Minimum tensile strength6 $, MPa &$ ksi



API color code6 1 #right green #and ; 1 #l"e #and

$%0 &-)41 -)4
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