Sign In | Join Free | My fnxradio.com
China TORICH INTERNATIONAL LIMITED logo
TORICH INTERNATIONAL LIMITED
Verified Supplier

11 Years
Home > Seamless Steel Tube >

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing

Product Categories
TORICH INTERNATIONAL LIMITED
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment
Contact Now

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing

Brand Name : TORICH

Model Number : GB/T 9808 -2008

Certification : ISO

Place of Origin : ZheJiang,CHINA

MOQ : 1 Tons

Payment Terms : L/C, D/A, D/P, Western Union, T/T, MoneyGram

Supply Ability : 60000 Tons/Year

Delivery Time : 30-35days

Packaging Details : In bundles or in wooden boxes packaging.as per clients' options.

Technique : Cold Drawn

Surface : Oiled

Material : ZT380,490,520,540,590,640,740

Usage : Oil Drill Mineral Mining

OD : 6-420mm

WT : 0.5-50mm

Length : 4000-12500mm

Steel Grade : ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740

Heat treatment : Normalized, Q+T

Contact Now

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing

Product Description:

This standard specifies the drilling seamless code, ordering content, dimensions, Weight, , technical requirements, test methods, marking and quality certification, packaging, appearance inspection rules. This standard applies to the geological core drilling, well drilling, hydrogeological drilling, engineering drilling casing material, core tube materials and materials with seamless steel casing collar, ordinary drill pipe tool joints feed materials and seamless steel pipes, steel particles Drill material seamless steel pipe, rope coring drill pipe tool joints feed materials and seamless steel pipes, drill collars, drill collar lock connector feed materials and seamless steel pipes.

Chemical Compositon

CHEMICAL COMPOSITION % max
P S
0.030 0.030

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.

Tolerance

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
>10 (+12.5%S, -10%S)
Cold Drawn OD ±0.50%D or ±0.20
WT ±8%S or ±0.15
Q(N)/ T118-2010 Cold Drawn OD OD ±0.40%D or ±0.20
WT WT ±7%S or ±0.15

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 0.015 0.20 ~ 0.20-0.25 0.001-
0.005
T750
(30CrMnSiA)		 0.28-0.34 0.90-1.20 0.80-1.10 0.02 0.015 0.20 0.8-1.1 ~ ~
T850
4140		 0.38-0.43 0.17-0.35 0.70-0.90 0.02 0.015 0.20 0.9-1.1 0.15-
0.25		 ~

Testing items and sampling quantity for steel tube

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

Mechanical Properties:

Steel Tensile Strength Mpa Yield Point Mpa Elongation % Heat treatment
Grade 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

Product Picture:

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing

Package and Delivery:

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing

FAQ:

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us.

GB/T 9808 -2008 Seamless Steel Pipe for Geological Drill and Mining Tubing


Product Tags:

Geological Seamless Steel Tube

      

12500mm Seamless Steel Tube

      

Oiled Geological Steel Tube

      
Wholesale GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing from china suppliers

GB/T 9808-2008 Seamless Steel Pipe for Geological Drill and Mining Tubing Images

Inquiry Cart 0
Send your message to this supplier
 
*From:
*To: TORICH INTERNATIONAL LIMITED
*Subject:
*Message:
Characters Remaining: (0/3000)
 
You May Like