P110 API Steel Casing Pipe

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The P110 API steel casing pipe uses P110 material, which enjoys the high grade among other grades of steel. A white band is painted on the finished casing to indicate its material. In the petroleum drilling and producing, the product is widely used in a variety of complex terrain due to its high tensile strength and high yield. It goes down the deepest into the well among other types. However, its price is relatively high, and thus the amount of use is relatively few. This P110 API steel casing pipe is only used in a specific environment and when the drilling depth reaches a certain level.

Specifications
1. Outside diameter

4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 9 5/8", 10 3/4", 13 3/8", 16", 18 5/8", 20"
2. Wall thickness
5.21 - 16.13 mm
3. Thread type
SC(Short round thread), LC(Long round thread), BC(Buttress thread)
4. Length
R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m)

Process of manufacture and heat treatment
Group Grade Type Manufacturing process a Heat treatment Tempering temperature °C min
1 2 3 4 5 6
1 H40 - S or EW - -
J55 - S or EW - b -
K55 - S or EW - b -
N80 1 S or EW c -
N80 Q S or EW Q d -
R95 - S or EW Q 538
2 M65 - S or EW e -

L80 1 S or EW Q 566

L80 9Cr S Q f 593

L80 13Cr S Q f 593
  C90 1 S Q 621
  T95 1 S Q 649

C110 - S Q 649
3 P110 - S or EW g, h Q -
4 Q125 1 S or EW h Q -
a S = seamless process; EW = electric-welded process.
b Full-body, full-length normalized, normalized and tempered or quenched and tempered at the manufacturer's option or as specified on the purchase agreement.
c Full-body, full-length heat treatment is mandatory. At the manufacturer's option, the product shall be either normalized or normalized and tempered.
d Includes the method of interrupted quenching followed by controlled cooling.
e Full-body, full-length heat-treatment is mandatory. At the manufacturer's option or as specified on the purchase agreement, the product may be normalized, normalized and tempered or quenched and tempered.
f Type 9Cr and 13Cr may be air-quenched.
g Special chemical requirements for electric-welded P110 pipe are specified in Table C.4 of API Spec. 5CT.
h Products shall be heat-treated full-body, full-length. Special requirements unique to electric-welded P110 and Q125 are specified in A.6 SR11 of API Spec. 5CT.
Chemical composition, mass fraction (%)
Group Grade Type C Mn Mo Cr Ni max. Cu max. P max. S max. Si max.
min. max. min. max. min. max. min. max.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 H40 - - - - - - - - - - - 0.03 0.03 -
J55 - - - - - - - - - - - 0.03 0.03 -
K55 - - - - - - - - - - - 0.03 0.03 -
N80 1 - - - - - - - - - - 0.03 0.03 -
N80 Q - - - - - - - - - - 0.03 0.03 -
R95 - - 0.45 c - 1.9 - - - - - - 0.03 0.03 0.45
2 M65 - - - - - - - - - - - 0.03 0.03 -
  L80 1 - 0.43 a - 1.9 - - - - 0.25 0.35 0.03 0.03 0.45
  L80 9Cr - 0.15 0.3 0.6 0.9 1.1 8 10 0.5 0.25 0.02 0.01 1
  L80 13Cr 0.15 0.22 0.25 1 - - 12 14 0.5 0.25 0.02 0.01 1
  C90 1 - 0.35 - 1.2 0.25 b 0.85 - 1.5 0.99 - 0.02 0.01 -
  T95 1 - 0.35 - 1.2 0.25 d 0.85 0.4 1.5 0.99 - 0.02 0.01 -
  C110 - - 0.35 - 1.2 0.25 1 0.4 1.5 0.99 - 0.02 0.005 -
3 P110 e - - - - - - - - - - 0.030 e 0.030 e -
4 Q125 1 - 0.35
1.35 - 0.85 - 1.5 0.99 - 0.02 0.01 -
a The carbon content for L80 may be increased up to 0.50 % maximum if the product is oil-quenched.
b The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the wall thickness is less than 17.78 mm.
c The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched.
d The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm.
e For EW Grade P110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum.
NL = no limit. Elements shown shall be reported in product analysis.

Our company is an experienced P110 API steel casing pipe manufacturer and supplier in China. Our products include J55 API casing /tubing, API non upset tubing coupling, EUE API tubing, pup joint, and more.

Related Names
Surface Casing with Heat Treatment | High Performance Casting Tube | Casing Pipe for Complex Terrain

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