Nut Series,Flange Nut,Hex Lock Nut,Hex Bolts Jiangsu Jiajie Special Screw Co., Ltd , https://www.tzbolts.com
Toleraance of size: ±0.05mm(outer diameter).
OD:Â 6mm~325mm
Wall thickness:Â 3mm~36mm
Technique:Â Cold drawing
Standard:Â ASME SA192/SA179, GB/T8162, GB/T8163, GB/T3639, DIN2391-2
Steel material:Â 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045,DIN45), 20Cr, Q345B, etc
We are professional manufacturer of cold drawn seamless steel pipe  in China. Our seamless steel pipe with very high precision of size
Usage:Â widely used for mechanical processing, Automobile industry, hydraulic equipments
Advantages of our high precision seamless steel pipe:
1.      Smaller caliber
2.      Accept small qty order
3.       Good surface treatment
4.       The pipe with superior performance, suitable for mechanical making
Accurate size
Perfect surface treatment
Anti-corrosion Packing
Final Supply Conditions
Â
Designation
Symbol
Description
Cold finished (hard)
BK
Tubes do not undergo heat treatment following the final cold forming and,thus, have a rather high resistance to deformation
Cold finished (soft)
BKW
The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g. bending expanding).
Cold finished and stress-relleved
BKS
Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree
Annealed
GBK
The last cold forming process is followed by annealing in a controlled atmosphere
Normalized
NBK
The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere
Preicision Seamless Tube Size List
Â
OD (mm)
Thickness (mm)
OD (mm)
Thickness (mm)
OD (mm)
Thickness (mm)
OD (mm)
Thickness (mm)
Φ13.1
1.5-3
Φ35.5
1.5-7
Φ46.1
1.5-10
Φ93
1.5-15
Φ19.25
1.5-5
Φ35.9
1.5-7
Φ47.8
1.5-10
Φ19-Φ121
1.5-15
Φ22
1.5-5
Φ36.6
1.5-7
Φ49.2
1.5-10
Â
Â
Φ22.2
1.5-5
Φ38
1.5-8
Φ49.5
1.5-10
Â
Â
Φ25
1.5-6
Φ38.4
1.5-8
Φ52.3
1.5-10
Â
Â
Φ26.3
1.5-6
Φ40
1.5-10
Φ53.8
1.5-10
Â
Â
Φ27
1.5-6
Φ40.2
1.5-10
Φ57
1.5-10
Â
Â
Φ28
1.5-6
Φ40.9
1.5-10
Φ59
1.5-10
Â
Â
Φ30
1.5-6
Φ41.3
1.5-10
Φ60
1.5-11
Â
Â
Φ30.25
1.5-6
Φ41.6
1.5-10
Φ62.5
1.5-11
Â
Â
Φ30.9
1.5-6
Φ42
1.5-10
Φ74
1.5-11
Â
Â
Φ31
1.5-7
Φ43
1.5-10
Φ75
1.5-11
Â
Â
Φ32
1.5-7
Φ44.5
1.5-10
Φ76
1.5-11
Â
Â
Φ35
1.5-7
Φ45.8
1.5-10
Φ89
1.5-15
Â
Â
Chemical Composition of seamless steel pipe
Material
Chemical composition (%)
C
Mn
P
S
Si
Ni
Cu
20#
AISI 10200.17~0.23
0.35~0.65
≤0.035
≤0.035
0.17~0.37
≤0.3
≤0.25
45#
ASTM1045, DIN450.42~0.5
0.5~0.8
≤0.04
≤0.045
0.17~0.37
≤0.25
≤0.25
Mechanical Properties of seamless steel pipe
Steel material
Tensile Strength Mpa
Yield strength Mpa
Elongation
%Hardness
Straightness
20#
≥510
≥245
≥25
≤156HB
0.3~1.0
45#
≥647
≥355
≥16
≤HRC62
0.3~1.0
Product Description
Toleraance of size: ±0.05mm(outer diameter).
OD:Â 6mm~325mm
Wall thickness:Â 3mm~36mm
Technique:Â Cold drawing
Standard:Â ASME SA192/SA179, GB/T8162, GB/T8163, GB/T3639, DIN2391-2
Steel material:Â 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045,DIN45), 20Cr, Q345B, etc
We are professional manufacturer of cold drawn seamless steel pipe  in China. Our seamless steel pipe with very high precision of size
Usage:Â widely used for mechanical processing, Automobile industry, hydraulic equipments
Advantages of our high precision seamless steel pipe:
1.      Smaller caliber
2.      Accept small qty order
3.       Good surface treatment
4.       The pipe with superior performance, suitable for mechanical making
Accurate size
Perfect surface treatment
Anti-corrosion Packing
Final Supply Conditions
Â
Designation
Symbol
Description
Cold finished (hard)
BK
Tubes do not undergo heat treatment following the final cold forming and,thus, have a rather high resistance to deformation
Cold finished (soft)
BKW
The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g. bending expanding).
Cold finished and stress-relleved
BKS
Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree
Annealed
GBK
The last cold forming process is followed by annealing in a controlled atmosphere
Normalized
NBK
The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere
Preicision Seamless Tube Size List
Â
OD (mm)
Thickness (mm)
OD (mm)
Thickness (mm)
OD (mm)
Thickness (mm)
OD (mm)
Thickness (mm)
Φ13.1
1.5-3
Φ35.5
1.5-7
Φ46.1
1.5-10
Φ93
1.5-15
Φ19.25
1.5-5
Φ35.9
1.5-7
Φ47.8
1.5-10
Φ19-Φ121
1.5-15
Φ22
1.5-5
Φ36.6
1.5-7
Φ49.2
1.5-10
Â
Â
Φ22.2
1.5-5
Φ38
1.5-8
Φ49.5
1.5-10
Â
Â
Φ25
1.5-6
Φ38.4
1.5-8
Φ52.3
1.5-10
Â
Â
Φ26.3
1.5-6
Φ40
1.5-10
Φ53.8
1.5-10
Â
Â
Φ27
1.5-6
Φ40.2
1.5-10
Φ57
1.5-10
Â
Â
Φ28
1.5-6
Φ40.9
1.5-10
Φ59
1.5-10
Â
Â
Φ30
1.5-6
Φ41.3
1.5-10
Φ60
1.5-11
Â
Â
Φ30.25
1.5-6
Φ41.6
1.5-10
Φ62.5
1.5-11
Â
Â
Φ30.9
1.5-6
Φ42
1.5-10
Φ74
1.5-11
Â
Â
Φ31
1.5-7
Φ43
1.5-10
Φ75
1.5-11
Â
Â
Φ32
1.5-7
Φ44.5
1.5-10
Φ76
1.5-11
Â
Â
Φ35
1.5-7
Φ45.8
1.5-10
Φ89
1.5-15
Â
Â
Chemical Composition of seamless steel pipe
Material
Chemical composition (%)
C
Mn
P
S
Si
Ni
Cu
20#
AISI 10200.17~0.23
0.35~0.65
≤0.035
≤0.035
0.17~0.37
≤0.3
≤0.25
45#
ASTM1045, DIN450.42~0.5
0.5~0.8
≤0.04
≤0.045
0.17~0.37
≤0.25
≤0.25
Mechanical Properties of seamless steel pipe
Steel material
Tensile Strength Mpa
Yield strength Mpa
Elongation
%Hardness
Straightness
20#
≥510
≥245
≥25
≤156HB
0.3~1.0
45#
≥647
≥355
≥16
≤HRC62
0.3~1.0
Cold Drawn Precision Seamless Steel Pipe for Mechanical Processing
Model NO.: HTSP
Trademark: HTSP
Transport Package: Hexagon Woven Bags
Specification: 6-68MM
Origin: China
HS Code: 7304391000
Model NO.: HTSP
Trademark: HTSP
Transport Package: Hexagon Woven Bags
Specification: 6-68MM
Origin: China
HS Code: 7304391000
Product Description