Cookie Img
Back to top
Home » Products » Hydraulic Honed Tube » Cylinder Tube Production Process

Cylinder Tube Production Process

Cylinder Tube Production Process
Cylinder Tube Production Process
Send Inquiry
Product Code : RH - 06
Product Description

 Cylinder Tube Production Process

Mechanical Property

 Supply condition Steel grade  Cold finished Hard)( BK) 
 Cold drawn (BK+S) and stress-relieved   Hardness HB 
 Tensile strength MPa Elongation ( %) Tensile strength MPa Yield strength MPa Elongation ( %)
 20# >550>8
>520>375
>12
 175
 45# >650>5>600>520>12 207
 ST52 >640>5>600>520>15 190
 25Mn >640>5
 >600>510>15 195
 27SiMn >840>5
 >800>720>10 230

Chemical Composition

 Steel Grade
C
Si
Mn
P
SCu
Ni
Cr V Nb Ti Al
 20# 0.17~0.23 0.17~0.370.35~0.65
 â‰¤0.035 â‰¤0.035≤0.25
 â‰¤0.25 â‰¤0.25 / / //
 45# 0.42~0.50 0.17~0.370.50~0.80
 â‰¤0.025 â‰¤0.025 â‰¤0.20 â‰¤0.20 â‰¤0.25 / / / /
 25Mn 0.22~0.29 0.17~0.37
0.70~1.00
 â‰¤0.03 â‰¤0.03 â‰¤0.20 â‰¤0.20 â‰¤0.25 / / / /
 27SiMn 0.24~0.32 1.10~1.401.10~1.40
 â‰¤0.035 â‰¤0.035 â‰¤0.30 â‰¤0.30 â‰¤0.30 / / / /

 Q345B(St52)

≤ 0.20
 â‰¤ 0.551.00~1.60
 â‰¤0.04 â‰¤0.04 / / / 0.02~0.15 0.015~0.060.02~0.20
 /
 Q345D(St52)≤.18 â‰¤ 0.551.00~1.60
 â‰¤0.03 â‰¤0.03 / / /0.02~0.15
 0.15~0.06 0.02~0.20≥0.15

 

 

 


X