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37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes

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37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes

Brand Name : Torich

Model Number : JIS G3465

Certification : ISO14001:2008, TS16949, CE PED, TUV, API,BV

Place of Origin : Zhejiang, China

MOQ : 5 TON

Price : 800-3000 / Ton

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

Supply Ability : 50000 Ton/Tons per Year

Delivery Time : 30-35 work days

Packaging Details : in wooden boxes or in hexagonal bundles

Name : JIS G3465 Alloy Steel Grade Oil Drill Mineral Mining Seamless Steel Tubes

Technique : Cold Drawn

Surface : oiled

Usage : Oil Drill Mineral Mining

Material : STM-R780, ZT380,490,520,540,590,640,740

OD : 6-420mm

WT : 0.5-50mm

Length : 4000-12500mm

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Product Name: JIS G3465 Alloy Steel Grade Oil Drill Mineral Mining Seamless Steel Tubes

Size range: O.D.:6-420mm W.T.:0.5-50mm L:4000-12500mm according to customers' actual application and production.

Application : For Geological Drill underground for Oil and Mineral, for Mining Exploration,for Wire Line Drill Rod, Casing Tube, Core Barrel Tubes, Couplings

Steel Grade: STM-R780, ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740

Material: 37SiMn 38CrMoAl 30CrMnSi(A)

Heat treatment: Normalized, Q+T

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:

37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes 37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes

37SiMn 38CrMoAl Alloy Steel Grade Drill Steel Pipe , Mineral Mining Seamless Steel Tubes

Tag: Drill Steel Pipe


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