Gold Member Since 2016
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Changzhou Hongtai Precision Steel Pipe Co., Ltd.

Steel Pipe, Seamless Steel Pipe, Tube manufacturer / supplier in China, offering Cold Drawn Seamless Precision Steel Tube for Oil Cylinder, JIS G3444 Cold Drawn Steel Pipe for Automobile and Motorcycle, JIS G4051 Seamless Steel Tube and so on.

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Supplier Homepage Product Precision Steel Pipes cold draw precision steel pipes Cold Drawn Seamless Precision Steel Tube for Oil Cylinder

Cold Drawn Seamless Precision Steel Tube for Oil Cylinder

FOB Price: US $400-900 / Yard
Min. Order: 1 Yard
Min. Order FOB Price
1 Yard US $400-900/ Yard
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Port: Tianjin, China
Production Capacity: 600 Tons Per Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Type: Seamless
  • Usage: Hydraulic/Automobile Pipe, Oil/Gas Drilling
  • Transport Package: Hexagon Woven Bags
  • Origin: China
  • Technique: Cold Drawn
  • Trademark: HTSP
  • Specification: 6-68MM
  • HS Code: 7304391000
Product Description
Product Description
Carbon steel precision pipe/tube (Cold drawn)

Pipe type: Seamless

Applications: Petroleum, chemical, power, gas, metallurgy, ship building, construction

Standard: DIN2391, DIN2393, DIN1629, EN10305-1, ASTM A519, ASTM A179, ASTM A192, ASTM A513

Grade: ST35, ST37(E235), ST45(E255), ST52 (E355), 20Cr (20Cr4)(5120), 40Cr (41Cr4) (5140), 30CrMo (4130), 42CrMo(4140), 38CrMoAlA(41CrAlMo07), 25Mn (1026)...

Outer Diameter: 1/8"-48"

Thickness: Sch10-Sch160, XXS, XS, STD

Length: SRL or DRL (As client's requirement)

Surface: Black rust-proof oil, transparent oil, hot galvanizing, 3PE, epoxy coating


Manufacture method: Cold rolled, hydraulic cold drawn.

Delivery condition:
BK BKW BKS GBK NBK
+C +LC +SR +A +N
Cold drawn/hardcold drawn/softstress relievingannealednormalized

Surface roughness: 1.6um max for cold drawn pipe without heat treating, 3.2um max for hea treated pipe.

Ovaity: 0.15mm max for pipe with OD below 150mm, 0.25mm max for pipe with OD below 219mm, 0.35mm max for pipe with OD aboe 220mm.

Straightness: 0.3mm/1000mm max, 0.8mm/1000mm max, 1.2mm/1000mm max.



Packing: In bundles tied with steel strips, oil coating, varnish, or black painting, end plastic caps.

Shipping: By containers.

Payment method: 30% deposit, balance before shipment or against copy of B/L or L/C at sight.

Warrany: 1 year after shipment of pipe.

Third party inspection or customer's inspection is accepable.

Addtional tests like hardness test, grain size test, ultrasonic test is acceptable.

Special requirements about ovality, surface roughness, straightness are acceptabe.

Delivery time: 30-60days as the real situation.

We also can special produce as our client's requirement.

Working
method

Cylinder ID (mm)

Length
(m)

Straightness
(mm/m)

Tolerance
on ID

Tolerance
on WT

Roughness
(μ m)

Cold drawn
40-320≤ 12M0.2-0.5/± 5%0.8-1.6

Cold rolling
30-100≥ 12M0.2-0.5/± 5%0.8-1.2

cold drawn-honed
40-5008M0.2-0.3H8-H9± 5%0.2-0.8

Cold drawn-roll
40-4007M0.2-0.3H8-H9± 5%≤ 0.4

Deep-hole
320-4008M0.2-0.3H7-H9± 8%≤ 0.8

Deep-rolling
320-4007M0.2-0.3H8-H9± 8%≤ 0.4















 

Final Supply
Condition

Cold finished
(Hard)(BK)

Cold drawn and stress-relieved (BK+S)

Hardness HB

Parameters

T. S
obN/mm 2

Elongation
δ 5%

T. S
obN/mm 2

Y. S
OsN/mm 2
Elongation
δ 5%
20#≥ 550≥ 8≥ 520≥ 470≥ 12175
45#(CK45)≥ 650≥ 5≥ 600≥ 520≥ 12207
16Mn(ST52)≥ 640≥ 5≥ 600≥ 520≥ 15190
25Mn≥ 640≥ 5≥ 600≥ 510≥ 15195
27SiMn≥ 840≥ 5≥ 800≥ 720≥ 10230
 












 

ID Min.
(Tolerance on OD)μ m
H7H8H9H10
30+21
0
+33
0
+52
0
+84
0
> 30-50+25
0
+39
0
+62
0
+100
0
> 50-80+30
0
+46
0
+74
0
+120
0
> 80-120+ 35
0
+ 54
0
+87
0
+140
0
> 120-180+40
0
+63
0
+100
0
+160
0
> 180-250+46
0
+72
0
+115
0
+185
0
> 250-315+52
0
+81
0
+140
0
+210
0
> 315-400+57
0
+89
0
+170
0
+230
0
Cold Drawn Seamless Precision Steel Tube for Oil CylinderCold Drawn Seamless Precision Steel Tube for Oil Cylinder
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