Made in China Seamless Honed Tubes
Product Introduction
Chinese high-quality honing tube manufacturers, honing tubes of various specifications and materials, oil cylinder tubes. Support processing customization and provide you with all-round customized production. It can be cut for retail and sold as a whole. Customized production according to your different needs.
Product Description
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Name
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Honed tube
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Standard
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DIN2391, EN10305, ASTM A519, GB/T 3639-200 etc
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Material
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Q355B Q355D C20,ST52,E355 SAE1026.CK45 4130 4140 STKM 13C
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Heat treatment
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BK+S
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Specification
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Outer diameter(mm)
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Inner diameter(mm)
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40-480mm
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30-400mm
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I.D Tolerance
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H8-H9
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Length
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Fixed Length, Random Length(3–9m)or as requests of customers
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Straightness
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0.5-1/1000
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ID roughness
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RA 0.1-0.8micron(max)
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Technology
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Honed & SRB(SKIVED AND ROLLER BURNISHED )
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Scope
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Honed tube for hydraulic cylinder, swivel crane, injection machine
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Product Show
Technical Specifications
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Steel Grade
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C
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SI
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Mn
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P
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S
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Cr
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Ni
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Cu
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20#
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0.17-0.24
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0.17-0.37
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0.35-0.65
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0.035
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0.035
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0.250
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0.250
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/
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45#
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0.42-0.50
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0.17-0.37
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0.50-0.80
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0.035
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0.035
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0.250
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0.300
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/
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Q345B
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≤0.2
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≤0.5
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1.00-1.60
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0.030
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0.030
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0.300
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0.250
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0.08
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Q345D
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≤0.2
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≤0.5
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1.00-1.60
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0.030
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0.030
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0.250
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0.250
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0.15
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25Mn
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0.22-0.29
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0.17-0.37
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0.70-1.00
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0.035
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0.035
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/
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/
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/
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27SiMn
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0.22-0.32
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1.10-1.40
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1.10-1.40
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0.035
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0.035
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0.300
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0.300
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/
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E355
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≤0.2
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≤0.55
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≤1.6
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0.025
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0.025
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0.250
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0.250
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/
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SAE1026
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0.22-0.28
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0.15-0.35
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0.60-0.90
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0.040
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0.050
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/
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/
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/
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Steel Grade
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Rm Mpa
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ReH Mpa
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Elonggation
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cold finished Rm Mpa
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cold finished Elonggation
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20#
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≥520
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≥375
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≥15
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≥550
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≥8
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45#
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≥600
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≥520
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≥10
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≥640
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≥5
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16Mn(Q345B /D)
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≥600
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≥520
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≥14
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≥640
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≥5
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25Mn
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≥600
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≥510
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≥15
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≥640
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≥5
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27SiMn
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≥760
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≥610
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≥10
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≥800
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≥5
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St45
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≥520
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≥375
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≥15
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≥550
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≥5
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E355(st52)
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≥600
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≥520
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≥14
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≥640
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≥5
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SAE1026
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≥600
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≥510
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≥15
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≥640
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≥5
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Working method
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range
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ID
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H8
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H9
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H10
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cold drawn
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25-250
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30-50
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+0.0390
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+0.0620
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+0.1000
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cold rolling
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25-150
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50-80
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+0.0460
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+0.0740
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+0.1200
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cold drawn-honed
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40-250
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80-120
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+0.0540
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+0.0870
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+0.1400
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cold drawn-SRB
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50-250
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120-180
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+0.0630
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+0.1000
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+0.1600
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cold drawn -polished
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40-250
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180-250
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+0.0720
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+0.1150
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+0.1850
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cold drawn-polish-SRB
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50-250
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as required
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as required
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as required
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as required
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