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Model: GB/T 9808
merk: Torich
verpakkingen: verpakken in houten kisten of zeshoekige bundels met zeewaardige verpakking
produktiviteit: 20000 Tons per Year
vervoer: Ocean,Land,Air
Plaats van herkomst: Zhejiang, China (Vasteland)
Ondersteuning over: 60000 Ton per year
Certificaat: ISO9001:2008 ISO14001:2008, TS16949, CE PED, TUV, API
GS-code: 7304192000
Haven: Shanghai,Ningbo,Wengzhou
betaling Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
Size bereik: OD: 6-420mm WT: 0.5-50mm L: 4000-12500mm volgens klanten werkelijke toepassing en productie.
Toepassing: voor geologische boor ondergronds voor olie en mineraal, mijnboring voor mijnexploratie, voor draadlijn boorstang, behuizingsbuis, kernvatbuizen, koppelingen, olieboorpijp, boren van stalen buizen
Staalsoort: ZT380, ZT490, ZT520, ZT540, ZT590, ZT640, ZT740
Warmtebehandeling: genormaliseerd, Q + T
Materiaal: 37SiMn 38CrMoAl 30CrMnSi (A)
Chemische samenstelling
CHEMICAL COMPOSITION % max | |
P | S |
0.030 | 0.030 |
Buiggraad
Nominal Wall Thickness/mm |
Bending Degree/(mm/m) |
≤15 |
≤1.5 |
>15 |
≤2.0 |
De buiggraad van de draadlijnboorstang is niet groter dan 1,0 mm per meter.
Interne padstaaftest
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) |
Testen van artikelen en monsternamehoeveelheid voor stalen kuip e
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 |
Rang vergelijkingstabel
This standard |
JIS G 3465-2006 |
Related industry standard |
ZT380 |
- |
DZ240 |
ZT490 |
- |
DZ250 |
ZT520 |
STM-R780 |
- |
ZT540 |
- |
DZ255 |
ZT590 |
- |
DZ260 |
ZT640 |
- |
DZ265 |
ZT740 |
- |
DZ275 |
Tolerantie
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 |
Chemische samenstelling:
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 |
~ |
Mechanische eigenschappen:
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 Categorie : Boren van stalen buizen
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