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10mm diameter steel pipe carbon pipe precise steel tube

Alloy seamless steel tube with high performance,because high content of Cr material is included .

  • RAY STEEL TUBE
  • 4130 ( 30CrMo) Q345, 20Cr,40Cr, 20CrMo, 42CrMo etc.
  • OD:10-65 mm , Thickness: 1-8 mm
  • Cold rolled & Cold drawn
Quantity:

Structure with seamless steel tubes is used for structure and mechanical structure.

Steel grade : carbon steel:1020,1045 

alloy steel : Q345, 20Cr,40Cr,20CrMo,30 CrMo,42CrMo etc.

Cold drawn ( cold rolled ) precision seamless steel tube is applied to mechanical structure,carbon pressure equipment. High precision, good surface finish.

MaterialCarbon Steel and Alloy Steel
Section ShapeRound
Surface treatmentOiled, phosphate etc
Outer Diameter6-65mm
Wall Thickness1-8mm
Seamless Steel Tube StandardDIN2391, DIN17175, ASTM A106, ASTM A213, ASTM A53, ASTM A312,     ASTM A179, SAE 4130. JIS G3445, JIS G3444, JIS G 3461, JIS G3441, JIS G3454 etc
Steel Tube GradeQ345, 20Cr,40Cr,20CrMo,30 CrMo,42CrMo
Packing Details1.Internal wrapped with plastic film. External wrapped with woven bags.
2. wooden boxes to pack.
3. Iron stand.
CertificationISO9001
Delivery conditionBK BKW BKS GBK NBK
Length1-12m as customer's requestment


Dimension tolerance comparision Chart
 Outside Diameter     GB/T 3639           DIN2391(EN10305)     RAY  steel tube            standard   Special standard   
       6-30mm       +/-0.1 mm           +/-0.08 mm      +/-0.05 mm       +/-0.03 mm
      31-40mm       +/-0.15 mm           +/-0.15 mm      +/-0.05 mm       +/-0.03 mm
      41-50mm       +/-0.20 mm           +/-0.20 mm      +/-0.05 mm       +/-0.03 mm
      51-60mm       +/-0.25 mm           +/-0.25 mm      +/-0.08 mm       +/-0.03 mm
      61-65mm       +/-0.30 mm           +/-0.30 mm      +/-0.10 mm       +/-0.05 mm
     Thickness       +/-0.12 mm           +/-0.10 mm      +/-0.05 mm       +/-0.03 mm


Chemical composition comparison Sheet:

Steel Grade  C Si Mn  S  P Cr    Ni  Cu
30CrMo 0.26-0.34 0.17-0.37 0.40-0.70 ≤0.035 ≤0.035 0.80-1.10 ≤0.30 ≤0.30
SCM430 0.28-0.33 0.15-0.35 0.60-0.90 ≤0.030 ≤0.030 0.90-1.20 ≤0.25 ≤0.30
4130 0.28-0.33 0.15-0.35 0.40-0.60 ≤0.040 ≤0.035 0.80-1.10 ≤0.030 ≤0.030
40Cr 0.37-0.44 0.17-0.37 0.50-0.80 ≤0.030 ≤0.030 0.80-1.10 ≤0.30 ≤0.30
SCr440 0.38-0.43 0.15-0.35 0.60-0.90 ≤0.030 ≤0.030 0.90-1.20 ≤0.25 ≤0.030
5140 037-0.44 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035 0.80-1.10 ≤0.030 ≤0.030
40CrMo 0.35-0.45 0.15-0.40 0.40-0.70 ≤0.035 ≤0.035 1.00-1.50

35Cr 0.32-0.39 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035 0.80-1.10 ≤0.030 ≤0.030
5135 0.33-0.38 0.15-0.35 0.60-0.80 ≤0.040 ≤0.035 0.80-1.05

SCr435 0.33-0.38 0.15-0.35 0.60-0.90 ≤0.030 ≤0.030 0.80-1.05 ≤0.25 ≤0.030
34Cr4 0.30-0.37 ≤0.40 0.60-0.90 ≤0.035 ≤0.035 0.90-1.20 ≤0.25 ≤0.030
1.7033 0.27-0.33 0.15-0.30 0.60-1.10 ≤0.040 ≤0.035 0.75-1.20

Mechanical performance parameter:

Steel Grade Tensile Strength Yield strength Elongation Hardness BK)
Mpa Mpa % HB 
30CrMo ≥930 ≥785 ≥12 ≤229
4130 ≥930 ≥786 ≥12 ≤229
SCM430 ≥930 ≥785 ≥12 ≤229
40Cr ≥980 ≥785 ≥9 ≤207
SCr440 ≥980 ≥785 ≥12 ≤207
5140 ≥980 ≥785 ≥9 ≤207
40CrMo ≥1080 ≥930 ≥12 ≤217
35Cr ≥930 ≥735 ≥11 ≤207
5135 ≥536 ≥555 ≥31 ≤414 (HBW)
SCr435 ≥930 ≥735 ≥11 ≤207
34Cr4 ≥930 ≥735 ≥11 ≤207
1.7033 ≥836 ≥538 ≥24 ≤233 (HBW)

Cold Rolled seamless steel tube show:5.jpg

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Cold Drawn seamless steel tube show:

SAE1045-PIPE9

12


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