Home > Products > main products > honed cold rolled pipe
honed cold rolled pipe
- 500 Metric Ton / Metric Tons per Month
- Yantai Qingdao or as client's request
- T/T
Product Details
Thickness: | 2, 30 | ||||
Section Shape: | Round | Outer Diameter: | 30 - 300 mm | Place of Origin: | Shandong, China |
Secondary Or Not: | Non-secondary | Application: | Other, Hydraulic Pipe, hydraulic cylinder, excavator, forklifts and so on | Certification: | Other, ISO9001:2008 |
Surface Treatment: | Other, as client's request | Alloy Or Not: | Non-alloy |
Product Description
Product: honed cold rolled pipe
Grade:20# 45# Q345 25Mn 27SiMn
Outer diameter: 30-250mm
Wall thickness: 2-30mm
ID tolerance: H7 H8 H9 or customized
Delivery condition: BK/BKW/BKS/GBK/NBK
Trade terms: FOB Yantai, Qingdao or as client's request
Payment terms: T/T, or L/C or as client's request
Main products
1 Hydraulic Cylinder Tube
Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. We can work and get the mechanical property of the clients need.
2. SRB tube
Directly used in Elevatorbuffer and Hydraulic Cylinder .This kind tube have a better inner roughness , ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Length can work at most 6M.
3. Cold finished tube
Widely Used. Processing range 30-300mm, biggest length is 11M.
The difference between precision steel pipe and seamless pipe?
1. the seamless steel tube with obvioue difference is that dimensional accuracy, can be up to 0.1mm.
2. high precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.
3.Superior surface finish
4.Dimensional accuracy and excellent micro-structure uniformity
Dimensions tolerance
OD(mm) | ID(mm) | Tolerance | ||||
OD(mm) | ID(mm) | Wall thickness deviation(mm) | Ovality(mm) | Curvature(mm/m) | ||
40-74 | 30-65 | ±0.01 | -0.3,-0.5 | ≤0.5 | ≤0.1 | 0.3 |
74-98 | 65-85 | ±0.01 | -0.4,-0.6 | ≤0.5 | ≤0.15 | 0.3 |
100-116 | 85-100 | ±0.02 | -0.4,-0.6 | ≤0.6 | ≤0.15 | 0.3 |
124-134 | 110-115 | ±0.02 | -0.6,-0.8 | ≤0.6 | ≤0.20 | 0.3 |
140-158 | 120-135 | ±0.02 | -0.7,-0.9 | ≤0.8 | ≤0.20 | 0.3 |
165-176 | 140-150 | ±0.02 | -0.7,-0.9 | ≤0.8 | ≤0.20 | 0.3 |
188-203 | 160-180 | ±0.02 | -0.7,-0.9 (honed) | ≤0.8 | ≤0.20 | 0.3 |
Mechanical Property
Delivery Condition | Cold drawn+stress-relieved(BK+S)(SR) | Cold finished(hard)(BK) | |||
Steel Grade | Tensile strength (Rm Mpa)
| Yield strength (ReH Mpa)
| Elongation A5% | Tensile strength (Rm Mpa)
| Elogation A5%
|
20# | ≥520 | ≥375 | ≥15 | ≥550 | ≥8 |
45# | ≥600 | ≥520 | ≥10 | ≥640 | ≥5 |
16Mn(Q345B Q345D) | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
25Mn | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
27SiMn | ≥760 | ≥610 | ≥10 | ≥800 | ≥5 |
St45 | ≥520 | ≥375 | ≥15 | ≥550 | ≥5 |
E355(St52) | ≥600 | ≥520 | ≥14 | ≥640 | ≥5 |
SAE1026 | ≥600 | ≥510 | ≥15 | ≥640 | ≥5 |
Packing and shipping
1. bundle packing
2. marking as per customer's requests
3. paint on the pipe as per customer request
4. pipe caps as customer request
Delivery condition
1. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
2. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
3. BK(+C)
the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee
4. BKW(+LC)
after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)
5. BKS(+SR)
have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing
FAQ
Q: What about your payment term?
A: Usually T/T or L/C or as client's request
Q: How about your capacity?
A: For steel pipes, 500 tons per month, 6000 tons per year.
Q: what about your package?
1. bundle packing
2. marking as per customer's requests
3. paint on the pipe as per customer request
4. pipe caps as customer requests
Q: If products have some quality problem,how would you deal with?
A: We will responsible for all of our quality problems and we are trade assurance supplier.
Our customer
Waiting for your contact!
Contact Us
- Yantai Xinpeng Steel Pipe Co., Ltd.
- Contact nameJudy Gao
- Phone0086-535-6835398
- Address2th,Binglun Road,APEC Technology Industrial Park,Zhifu District,Yantai City Yantai,Shandong
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