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Precision pipe is a seamless steel pipe with high precision and high brightness produced through cold drawing or cold rolling processes. Its internal and external diameter can be accurate to within 0.2mm. It is light in weight while ensuring bending and torsional strength, so it is widely used to manufacture precision Machine element and engineering structures.
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Main Produdion Category |
Seamless Steel Tube/Pipe, Cold Drawn Steel Bar, Precision Welded Pipe, Rebar Coupler, Steel Pipe Further Processing |
Production Range |
Outer Diameter: 10-120mm (0.39 inch - 4.72 inch) |
Wall Thickness: 1-20mm (0.039 inch - 0.79 inch) | |
Tolerance |
Tolerance ±0.10mm, Superior products ±0.05mm, Can be customized according to customer's requirements |
Technique |
Cold Drawn / Cold Rolled |
Finished Product Condition |
BK, BKS, +C, +LC, +SR, +A, +N |
Shape |
Round or Special shapes |
Raw Material Brand |
Baosteel, Xingcheng, Shagang, Tenith, Jiyuan and other manufacturers |
Main Standards |
ASTM A519, A530, A179, A192 |
DIN10297-1, DIN17121, DIN1629, DIN2391, EN10305, EN10087, BS970 | |
JISG3441, JISG3444, JISG3445, JISG4804 | |
GOST8733, GOST8734, GOST8645,GOST8639, GOST1414 | |
Further Processing for Steel Tubes |
Heat treatment (Quenching and Tempering), Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking |
Featured Products |
Free Cutting Steel Tube, Precision Tube, Special Shaped Steel Tubes, Alloy Pipe, Small-Diameter Thick-Wall Steel Tube |
Material |
Diameter of sample
d
mm
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Heat treatment or condition. |
Tensile strength
σb
Mpa
|
Point of yield
σs
Mpa
|
Ratio of elongation
δ %
|
Reduction of section
ψ %
|
hardness
HBW
|
Shock absorption energy
KV2 J
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ASTM 5120/ GB 20Cr |
d=15 |
Quenching + tempering |
≥835 |
≥540 |
≥10 |
≥40 |
≤179 |
≥47 |
ASTM 5140/ GB 40Cr |
d=25 |
Quenching + tempering |
≥980 |
≥785 |
≥9 |
≥45 |
≤207 |
≥47 |
ASTM 5145/ GB 45Cr |
d=25 |
Quenching + tempering |
≥1030 |
≥835 |
≥9 |
≥40 |
≤217 |
≥39 |
ASTM 4130/ GB 30CrMo |
d=25 |
Quenching + tempering |
≥930 |
≥785 |
≥12 |
≥50 |
≤229 |
≥63 |
ASTM 4317/ GB 35CrMo |
d=25 |
Quenching + tempering |
≥980 |
≥835 |
≥12 |
≥45 |
≤229 |
≥63 |
ASTM 4140/ GB 42CrMo |
d=25 |
Quenching + tempering |
≥1080 |
≥930 |
≥12 |
≥45 |
≤217 |
≥63 |
ASTM 4142/ GB 40CrMnMo |
d=25 |
Quenching + tempering |
≥980 |
≥785 |
≥10 |
≥45 |
≤217 |
≥63 |
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FAQ Q: How about the MOQ? If my first order qty is small, will you accept?
A: We would like to do our best to support your trial order qty, so even 1 pc or 1 kg is ok to start cooperation; because we have confidence to move on second order with your esteemed company.
Q: What is your payment terms ?
A: Commonly two payment term for new customers: 1) 30% T/T as deposit , 70% balance against B/L copy; 2) 100% Irrevocable L/C at sight;If you need any other terms, pls feel free to contact us too, we will try our best.
Q: How long is your delivery time?
A: Our daily inventory is more than 8000 tons, so for common product size, just need 5 days from stocks; if the special size from new production, delivery 7 days.
Q: How about the samples ? is it free or extra fees?
A: Yes, we would like to supply the samples before order; if the samples from stock, it will be free; if the samples from new production, we will charge some reasonable cost, but this amount will be deducted from your first order invoice.
Q: How to control and guarantee your shipment quality?
A: 1) All our factories are ISO9001, CEcertified facility;
2) Ex factory inspection by our own laboratory.
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