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Seamless Straightness Steel Tubes for Drilling GB/T 9808 37SiMn 38CrMoAl

Name: Seamless Straightness Steel Tubes for Drilling GB/T 9808 37SiMn 38CrMoAl
Brand: TORICH INTERNATIONAL LIMITED
SKU: GB/T 9808
Price: 2,550.00 USD
Availability: InStock

Brand Name:	TORICH
Model Number:	GB/T 9808
MOQ:	5 Ton
Price:	negotiable
Payment Terms:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:	40000 Ton/Year

Detail Information

Product Description

Detail Information

Place of Origin:

Zhejiang China

Certification:

ISO 9001 ISO 14001 TS 16949

Product Name:

Good Straightness Seamless Steel Tubes For Drilling GB/T 9808 37SiMn 38CrMoAl

Material:

37SiMn 38CrMoAl

Surface:

With Anti Rust Protection

Application:

For Geological Drill Underground For Oil And Mineral, For Mining

Shape:

Round

OD:

6-95mm

WT:

1-10mm

Length:

4-12.5m

Packaging Details:

Packing in wooden box，hexagonal bundles or other seaworthy ways.

Supply Ability:

40000 Ton/Year

Highlight:

seamless steel pipe

precision stainless steel tubing

Product Description

Good Straightness Seamless Steel Tubes for Drilling GB/T 9808 37SiMn 38CrMoAl

Spec:
Material:37SiMn 38CrMoAl
Size Range:OD:6-95mm
WT:1-10mm
General Length:4-12m

Chemical Compositon

CHEMICAL COMPOSITION % max
P	S
0.030	0.030

Tolerance of Outer Diameter and Wall Thickness

Standard	Production Method	Tube Size		Tolerance
GB/T 9808-2008	Hot rolled	OD		(+1.0%D) or +0.65 (-0.5%D) -0.35
		WT	≤10	(+15%S)or +0.45 (-10%S) -0.35
		WT	>10	(+12.5%S, -10%S)
	Cold Drawn(rolled)	OD		±0.50%D or ±0.20
	Cold Drawn(rolled)	WT		±8%S or ±0.15
Q(N)/ T118-2010	Cold Drawn	OD	OD	±0.40%D or ±0.20
Q(N)/ T118-2010	Cold Drawn	WT	WT	±7%S or ±0.15

Bending Degree

Nominal Wall Thickness/mm	Bending Degree/(mm/m)
≤15	≤1.5
＞15	≤2.0

The bending degree of the wire-line drill rod is not larger than 1.0 mm per meter.
Internal Path Rod Test

Diameter of the Path Rod	Length of the Path Rod(mm)
d-1.0	300
d=D(diameter of the tube)-2S(wall thickness of the tube)

Mechanical Property

No.	Grade	Tensile Strangth Rm/MPa	Specifies the non-proportional extension strength Rp0.2/MPa	Percentage elongation after fracture A/%
No.	Grade	No less than
1	ZT380	640	380	14
2	ZT490	690	490	12
3	ZT520	780	520^a	15^b
4	ZT540	740	540	12
5	ZT590	770	590	12
6	ZT640	790	640	12
7	ZT740	840	740	10
^a Grade ZT520 measure R_P0.5 ^bGrade ZT520 use tensile sample S4 S5 or S6 in GB/T 228

Testing items and sampling quantity for steel tubes

Serial number	Testing item	Sampling quantity
1	Chemical composition	1 sample from each furnace
2	Tensile test	1 sample from each batch
3	Ultrasonic examination	All
4	Eddy current test	All
5	Magnetic flux leakage test	All

Grade comparison table

This standard	JIS G 3465-2006	Related industry standard
ZT380	—	DZ240
ZT490	—	DZ250
ZT520	STM-R780	—
ZT540	—	DZ255
ZT590	—	DZ260
ZT640	—	DZ265
ZT740	—	DZ275

Mining Tubes with Alloy :For Geological Drill underground for Oil and mineral, for mining

Our Advantage:

Professional steel tube maker

Superior quality and Competitive Price

First-class production technology and Double quality control

Fast delivery and Best services

Tags:

Precision Steel Tube

Seamless Steel Tube

Stainless Steel Tube

Welded Steel Tube

DOM Steel Tube

Heavy Wall Steel Tubing

Special Steel Pipe

Alloy Steel Pipe

Automotive Steel Tubes

CNC Machining Parts

Heat Exchanger Tubes

U Bend Tube

Drill Steel Pipe

Hydraulic Cylinder Tube

Nickel Alloy Tube

Structural Steel Pipe

Precision Steel Tube

Seamless Steel Tube

Stainless Steel Tube

Welded Steel Tube

DOM Steel Tube

Heavy Wall Steel Tubing

Special Steel Pipe

Alloy Steel Pipe

Automotive Steel Tubes

CNC Machining Parts

Heat Exchanger Tubes

U Bend Tube

Drill Steel Pipe

Hydraulic Cylinder Tube

Nickel Alloy Tube

Structural Steel Pipe

products details

Seamless Straightness Steel Tubes for Drilling GB/T 9808 37SiMn 38CrMoAl

Seamless Straightness Steel Tubes for Drilling GB/T 9808 37SiMn 38CrMoAl

seamless steel pipe

precision stainless steel tubing