Burnishing Tube /Seamless Tube/45# Materials Hydraulic Cylinders Tube for Hydraulic Machinery

Basic information 
 

Model NO.	Powersen1	Structure	hydraulic cylinder tube type
Material	seamless steel  tube	Raw Material	Carbon steel
Material type	Seamless	Surface Treatment	Bk, Nbk, Bks, etc
MOQ	1tons	Warranty	12month
Production Capacity	24000tons/years	HS Code	7304319000
Section Shape	Round	Usage	Hydraulic/Automobile Pipe, Machinery Industry, Mining, Special Purpose
Bore Roughness	Ra0.25um Max	Wall thickness	3-50mm
Od Treatment	Machining+Polishing	ID Tolerance	H8, H9
Bore Treatment	Honing, Skiving&Roller Burnishing	Transport Package	Standard Export Packing or Customized Packing
Specification	40mm*30mm-580mm*500mm	Trademark	Sdpowersen

Production description 

Burnishing is a cold working process designed for  improving surface finish ,imporving size ,increacing hardness and imporving fatigue life .So there you four primary benefits of role of bunishing ;

What burnishing does do ?It takes a machined surface see but a peak to vally of machined surface and it pushed those peaks into the valleys by stressing the material beyond its yield ;
 

Burnishing   parameters	Burnishing tube OD:45mm - 180 mm
	Burnishing tube ID:35mm - 160 mm
	Burnishing tube materials: 20# 45#(CK45) 16Mn (ST52) 25Mn 27SiMn
	Burnishing tube thickness : 5mm - 22 mm
	Burnishing Standard: GB/T 87 13-88  GB/T 3639 - 2000   TIN 2391 EN 10305

Cylinder tube series	Skived and rolled burnished tube  series	Honed tube series

Product parameters 

Mechanical properties
Steel grade	tensile strength (бb N/mm2)	Yield strength (бs N/mm2)	Elongation (δ%)	Hardness (HB)
20#	≥520	≥470	≥12	175
45#(CK45)	≥600	≥520	≥12	207
16Mn(ST52)	≥600	≥520	≥12	190
25Mn	≥600	≥510	≥15	195
27SiMn	≥800	≥720	≥10	230

Product Description
Processing form	Cylinder ID (mm)	length (m)	Straingtness (mm/m)	Tolerance on ID	Roughness (µ/m)
Cold drawn	30-250	≤13m	0.2-0.5	H9-H11	0.8-1.6
Precision rolling	40-800	≤13m	0.2-0.3	H7-H9	0.2-0.4
Honing	40-800	≤7m	0.2-0.3	H7-H9	0.4-0.8
Burnished	40-400	≤7m	0.2-0.3	H8	≤0.4

Dimension Tolerence
Size of ID (mm)	ID Tolerance					Tolerance of wall thickness
	H7	H8	H9	H10	H11
30	+0.021 0	+0.033 0	+0.052 0	+0.084 0	+0.130 0	±5%
>30-50	+0.025 0	+0.039 0	+0.062 0	+0.100 0	+0.160 0
50-80	+0.030 0	+0.046 0	+0.074 0	+0.120 0	+0.190 0
80-120	+0.035 0	+0.054 0	+0.087 0	+0.140 0	+0.220 0
120-180	+0.040 0	+0.063 0	+0.100 0	+0.160 0	+0.250 0
180-250	+0.046 0	+0.072 0	+0.115 0	+0.185 0	+0.290 0
250-315	+0.052 0	+0.081 0	+0.130 0	+0.210 0	+0.320 0
315-400	+0.057 0	+0.089 0	+0.140 0	+0.230 0	+0.360 0

Detailed  Photos 
Company profile 

Quality Warranty 
High quality guarantee 

 1. 7*24 service

 2.Competitive price

 3.Professional technical team

 4.Perfect after-sales service system

 5.Can make all kinds of materials and specifications tube as customer require 

 6.Strong tube production capacity to ensure fast delivery

 7.Guarantee Quality. Every process must be inspected, all products need be tested before leaving the factory
   
(1) Surface Roughness Test 

(2) Ultrasonic Flaw Detector Test 

(3)Chrome Thickness Test 

(4) Leeb Hardness Test 

(5)Coordinate Measuring Test 

(6)Inner diameter Test

(7)Out Diameter Test 

(8) Length Test

(9)  Straightness Test 

(10) Others complete Test  etc.

Others Product Series 

Why choose us 

1.We are a powerful manufacturer integrating factory and trade 

2.We have advanced production equipment ,precise measuring instruments,complete production lines,sincere service attitude 

3.Specializing in the production of hydraulic products of various specifications and materials, including hydraulic cylinders, cold-drawn tubes, precision-rolled tubes, honing tubes, rolled tubes, piston rods, balance cranes, hydraulic accessories

4.a series of hydraulic products for more than 20 years, there are  Professional technical team, service team, production team, tailor-made first-class quality, perfect products and sincere service for every customer!

5.One world one love , we will waiting for you on line 24h , welcome to visit our factory !