Product Details

Product Description

Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125

Size: 4 1/2”~20” for Seamless Casing

Size: 1.05''~4 1/2'' for Seamless Tubing

Length: R1/R2/R3

Dimensional tolerances:

Types of steel tubes	Outer diameter		Wall thickness
Cold-rolled tubes	Tube sizes(mm)	Tolerances(mm)	Tolerances(mm)
	<114.3	±0.79	-12.5%
	≥114.3	-0.5%, +1%	-12.5%

Mechanical properties:

Standard	Models of steel tubes	Tensile strength (MPa)	Yield strength (MPa)	Elongation (%)	Hardness
API SPEC 5CT	J55	≥517	379~552	check the table	≤241HB
	K55	≥517	≥655
	N80	≥689	552~758
	L80(13Cr)	≥655	552~655
	P110	≥862	758~965

Chemical Composition:

Standard

Models of steel tubes

Chemical compositions (%)

Als

API SPEC 5CT

J55K55 (37Mn5)

0.34~ 0.39

0.2~ 0.35

1.25~ 1.5

≤0.02

≤0.015

≤0.15

≤0.20

≤0.02

N80 (36 Mn2V)

0.34~ 0.38

0.2~ 0.35

1.45~ 1.7

≤0.02

≤0.015

≤0.15

0.11~ 0.16

≤0.02

L80 (13Cr)

0.15~ 0.22

≤1.0

0.25~ 1.0

≤0.02

≤0.010

12.0~ 14.0

≤0.20

≤0.02

P110 (30CrMo)

0.26~ 0.35

0.17~ 0.37

0.40~ 0.7

≤0.02

≤0.010

0.8~1.1

≤0.20

0.15~ 0.25

≤0.08

≤0.02

Note: Also we can supply you pup joint and coupling (coupling stock and coupling blank)for tubing and Casing, as well as for weld pipe.

Packaging & Shipping

Packaging Detail:	EXPORT STANDARD SEAWORTHY PACKING

Our Services

Advanced equipment and techniques

Long-term cooperative relationships with more than a hundred famous and large manufacturers in China

High quality products and the best services to meet the strict needs of our customers

The business philosophy of "people-oriented, customer first and reliability first"

Successfully exported to Europe, America, the Middle East, South Africa and Southeast Asia