Large Diameter Mechanical Drill Steel Pipes

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Preferred Buyer Location All over the world

Based in China, we are a trustworthy Manufacturer, Exporter and Supplier of Large Diameter Mechanical Drill Steel Pipes. Fabricated using premium steel, our Pipes are sturdy, corrosion resistance and....

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Torich International Co.,Ltd

China

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Member Since 10 Years
Nature of Business Manufacturer
Year of Establishment 1997

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Based in China, we are a trustworthy Manufacturer, Exporter and Supplier of Large Diameter Mechanical Drill Steel Pipes. Fabricated using premium steel, our Pipes are sturdy, corrosion resistance and highly durable. Further, these Hot Rolled/Cold Drawn Steel Pipes are in compliance with the international standards. For price quotes, stay assured to get what’s the best in market.
Details :

Model Number:GB/T9808-2008, JIS G3465-2006, ASTM A519
Mining tubes with Alloy steel grade
Straightness, Concentricity, Mechanical Properties can meet the requirement of DCDMA (USA), BS4019 (UK), METRIC (SWEDEN)
Applications - For Geological Drill underground for Oil and mineral, for mining

Specifications:

Standard		Producton Method			Tube Size				Tolerance
GB/T 9808-2008		Hot rolled			OD				(+1.0%D) +0.65 (-0.5%D) -0.35
					WT		≤10		(+15%S) +0.45 (-10%S) -0.35
							0		(+12.5%S, -10%S)
		Cold drawn			OD				±0.50%D or ±0.20
					WT				±8%S or ±0.15
Q(N)/ XJY118-2010		Cold drawn			OD		OD		±0.40%D or ±0.20
					WT		WT		±7%S or ±0.15
Normal Sizes:
Designation			Outside Diameter (mm)					Inside Diameter (mm)
			Min			Max		Min			Max
A Wireline			44.45			44.7		34.82			35.07
B Wireline			55.55			55.9		45.95			46.3
N Wireline			69.95			70.3		60.05			60.3
H Wireline			88.9			89.38		77.62			78.1
P Wireline			114.3			114.78		102.79			103.27
Mechanical Properties:
Stee Grade	Tensile Strength Mpa min			Yield Strength Mpa min			Elongation % min			HRC	Heat Treatment
T600	790			600			14			~	N
T750	850			750			14			26-31	QT
T850	950			850			14			28-33	QT
Chemical composition
Stee Grade	C		Si	Mn		P max	S max	Cu max		Cr	Mo	B
T600 (45MnMoB)	0.43-0.48		0.17-0.37	1.05-1.35		0.02	0.02	0.2		~	0.20-0.25	0.001-0.005
T750 (30CrMnSiA)	0.28-0.34		0.90-1.20	0.80-1.10		0.02	0.02	0.2		0.8-1.1	~	~
T850 4140	0.38-0.43		0.17-0.35	0.70-0.90		0.02	0.02	0.2		0.9-1.1	0.15-0.25	~
Mechanical Properties:
Steel Grade	Tensile Strength Mpa			Yield Point Mpa			Elongation %			Heat treatment
	Min
ZT380	640			380			14			Normlized
ZT490	690			490			12			Normlized
ZT540	740			590			12			Normlized
ZT590	770			590			12			Normlized
ZT640	790			640			12			QT
ZT740	840			740			10			QT
T850	950			850			15			QT