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  • Precision Hydraulic Cylinder Steel Tube for Crane
  • Precision Hydraulic Cylinder Steel Tube for Crane
  • Precision Hydraulic Cylinder Steel Tube for Crane

Precision Hydraulic Cylinder Steel Tube for Crane

Payment Type:
T/T
Incoterm:
FOB,CFR,CIF,FCA
Min. Order:
1 Ton
Transportation:
Ocean
Port:
Shanghai,Ningbo
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  • Product Description
Overview
Product Attributes

Model No.Steel Tube for Hydraulic Cylinder

BrandHuijie

UsageHydraulic/Automobile Pipe

TypeSeamless

TechniqueCold Drawn

MaterialCarbon Steel

Surface TreatmentOther

Section ShapeRound

RAW MATERIALSBao Steel, Huai Steel, Zhongtian Steel

ApplicationHydraulic Cylinder Honed Tube

Delivery ConditionBKS, BK

Inner SurfaceHoned

OD Size40-400mm

WT Size1-40mm

Supply Ability & Additional Information

PackagingBundles Package, Wooden Box

Productivity3000 tons/month

TransportationOcean

Place of OriginZhejiang, China

Supply Ability3000 tons/month

CertificateISO9001-2008, TS16949

HS Code73043190

PortShanghai,Ningbo

Payment TypeT/T

IncotermFOB,CFR,CIF,FCA

Packaging & Delivery
Selling Units:
Ton
Package Type:
Bundles Package, Wooden Box

Precision Hydraulic Cylinder Steel Tube for Crane

Standard : GB/T3639, GB/T8713, EN10305-1:2002, EN10305-2:2002,
Astm A519-2006, ASTM A513-2007, GB/T1591-2008, GB/T17396-2009

Material: 20#, 45#, Q345B, Q345D, 25Mn, 27SiMn, E355

Product Feature:

1.High precision (can cut the costs of machining) .
2.Excellent surface finish
3.Good mechanical performance (Annealing ,Bright Annealing,QT heatment on Steel Tubes to reach customers' Mechanical requsts. )


Hydraulic and pneumatic cylnder tube standard/size/tolerance
 

Working method


Tube ID

(mm)

Length

(m)


Straightness
(mm/m)

Tolerance

on ID

Tolerance

on WT


ID Roughness

(um)

Cold Draw 40-400 ≤12m 0.2-0.5  / ±5% ≤1.6
Cold Rolled 40-150 ≤12m 0.2-0.5  / ±5% ≤0.8
Cold Draw-Honed 40-400 ≤8m 0.2-0.3 H8-H9 ±5% ≤0.4
Cold Draw-Rolling 50-300 ≤8m 0.2-0.3 H8-H9 ±5% ≤0.4
Deep hole boring-Roing 250-400 ≤8m 0.2-0.3 H8-H9 ±8% ≤0.8
Deep hole boring-Honed Roing 250-400 ≤8m 0.2-0.3 H8-H9 ±8% ≤0.4

 

Mechancial property
 

Final supply condition

 

 

 

Steel grade

Cold finished(hard)(BK) (Cold drawn and stress-relieved(BK+S)

T.S

bN/mm2

Elogation 5% T.S bN/mm2 Y.S Bn/mm2 Elogation 5% Hardness HB Impact value(-20℃)J
20 ≥550 ≥8 ≥520 ≥400 ≥15 170 /
45 ≥680 ≥5 ≥630 ≥520 ≥12 190 /
Q345B ≥660 ≥8 ≥620 ≥520 ≥15 190 /
Q345D ≥660 ≥8 ≥620 ≥520 ≥15 190 ≥27
25Mn ≥640 ≥8 ≥620 ≥510 ≥15 190 /
27SiMn ≥780 ≥5 ≥700 ≥580 ≥10 210 /
E355 ≥700 ≥8 ≥650 ≥580 ≥15 195 ≥27

 

Chemecal composition
 

Steel grade
C Si Mn P S Cr Ni Cu V
20 0.17-0.23 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25 /
45 0.42-0.50 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25 /
Q345B ≤0.20 ≤0.50 ≤0.17 ≤0.035 ≤0.035 ≤0.30 ≤0.50 ≤0.30 ≤0.15
Q345D ≤0.18 ≤0.50 ≤0.17 ≤0.030 ≤0.025 ≤0.30 ≤0.50 ≤0.30 ≤0.15
25Mn 0.24-0.32 1.10-1.40 1.10-1.40 ≤0.035 ≤0.035 ≤0.30 ≤0.30 ≤0.20 /
27SiMn 0.22-0.29 0.17-0.37 0.70-1.0 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25 /
E355 ≤0.22 ≤0.50 ≤1.60 ≤0.035 ≤0.025 / / / /

 

(Tolerance on ID) um
 
ID Size (Tolerance on ID)um
H7 H8 H9 H10
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



100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.

ID Honned Steel TubeHydraulic Cylinder Seamless Round Tube

Product Categories : Hydraulic Cylinder Tubes

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