Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Products
Model No.: Steel Tube for Hydraulic Cylinder
Brand: Huijie
Usage: Hydraulic/Automobile Pipe
Type: Seamless
Technique: Cold Drawn
Material: Carbon Steel
Surface Treatment: Other
Section Shape: Round
RAW MATERIALS: Bao Steel, Huai Steel, Zhongtian Steel
Application: Hydraulic Cylinder Honed Tube
Delivery Condition: BKS, BK
Inner Surface: Honed
OD Size: 40-400mm
WT Size: 1-40mm
Packaging: Bundles Package, Wooden Box
Productivity: 3000 tons/month
Transportation: Ocean
Place of Origin: Zhejiang, China
Supply Ability: 3000 tons/month
Certificate: ISO9001-2008, TS16949
HS Code: 73043190
Port: Shanghai,Ningbo
Payment Type: T/T
Incoterm: FOB,CFR,CIF,FCA
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 | (mm) | Length (m) | Straightness (mm/m) | Tolerance on ID | Tolerance on WT | (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.
Product Categories : Hydraulic Cylinder Tubes
Home > Products > Hydraulic Cylinder Tubes > Precision Hydraulic Cylinder Steel Tube for Crane
Send Inquiry
Mr. Kevin
Tel:86-0574-87491308
Fax:86-0574-87491848
Mobile Phone:+8613355844917
Email:sales@hjbearingtube.com
Address:Industrial Park, Zhangting Town,Yuyao City, Ningbo, Zhejiang
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.