天宏钢铁（香港）有限公司
TIANHONG STEEL (HONG KONG) LIMITED

DRILL PIPE

Steel Grade：E75、X95、G105、S135

Standard：API SPEC 5DP

Application：Drill pipe is for exploration and development of oil and gas wells.

Sizes：

Note：EU—external upset；IU—internal upset；IEU—internal & external upset.

Dimension Tolerances：

		Tolerance
Drill-pipe-body Outside Diameter	Pipe body	D≤101.60mm，±0.79mm
		D≥114.30mm，+1.0%，-0.5%D
	Drill-pipe-body behind the Meu	60.32mm≤D≤88.90mm，+2.38%，-0.79%D
		88.90mm＜D≤127.00mm+2.78mm，-0.75%D
		127.00mm＜D≤168.28mm，+3.18mm,-0.75%D
Wall Thickness		0，-12.5%t

Chemical Composition，Mass Fraction(%)：

Mechanical Properties：

Steel Grade	Tensile Properties				Charpy V-natch longitudinal absorbed-energy（21°C±3°C）
	yield strength(Mpa)		tensile strength(Mpa)	elongation (%)	10*10 average（min）	10*7.5 average（min）	10*5 average（min）
	Min	Max	Min
E	517	724	689	See API spec 5D	54（47）	43（38）	30（26）
X	655	862	724
G	724	931	793
S	931	1138	1000

Notes：

k— is a constant equal to 1944（62500）；A— is the corss-sectional area of the tensile-test specimen，mm2（in2）；

U_dp— is the minimun specified tensile strength，Mpa（lb/in2）.

Phone： 0510-81616656

Email：

doris@topoilpipe.com

天宏钢铁（香港）有限公司TIANHONG STEEL (HONG KONG) LIMITED