• Steel Pipe System 1
Steel Pipe

Steel Pipe

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
10000 Pieces pc
Supply Capability:
1000000 Pieces per M pc/month

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Detailed Product Description

 Appearance treating: galvanized

joint diameter: 32mm

Material: steel

product

OD

W.T.

standard

Length

seamless steel pipe

4'' to 24''

SCH20  30 40 60 STD 80

ASTM106

5.8m 6m

5m to 12m

pipe line

3'' to 18''

SCH20 30 40 60

STD 80

API 5L

5.8m 6m

5m to 12m

Spiral steel pipe

8'' to 28''

SCH20 30 40 60

STD 80

ASTM106

5.8m 6m

5m to 12m

ERW steel pipe

8'' to 36''

SCH20 30 40 60

STD80

ASTM106

5.8m 6m

5m to 12m

packing

In bundles

 

 

 

Delivery terms

FOB

CIF

CFR

 

Payment terms

30% T/T advanced payment

70% L/C at sight

 

 

  1. OD 10mm-1000mm

  2. thickness 1mm-100mm

  3. standard GB BS AMSE ANSI DIN JIS

 

Our company operate of oil and oil line pipe casing, Not only the supply of domestic large-scale oil fields, but also establish a long-term business relationship with the Middle East, Europe, Africa and other countries.

 

Products:

 

316L, 316,304 L, 304,303,302,301,202,201 and other stainless steel round bar, square steel, angle steel and special type of steel 6

316F, 304F, 303F, 303Cu, 430F, 420F and other material easy to cut stainless steel bars;

316L, 316,304 L, 304,302,301,202,201 and so on stainless steel sheet;

321,316 L, 316Ti, 316,304 L, 304, 301,202,201, etc.

 

Q: Drill 4.2 holes, tap 5 thread, choose what kind of drill sleeve
Look at your drill sleeve material is what, if it is rotating drill sleeve, the direct selection of about 0.02 larger than the drill can, if they do need a kind of drilling quenching, will put a bit into the hole position accuracy -- mainly depends on your workpiece hole
Q: I have seen many drilling techniques in practice, and I find that drilling jigs do not have guiding elements (i.e. drill sleeves). Why do not they use drill sleeves in actual production? And I have seen in many books drilling jig, need drill sleeve of the statement, how is this matter?Reaming in our company is also done by drilling machines. Change the drill bit to the reamer. Do you want reaming?I asked the master of the workshop why the drilling fixture does not need to drill, they do not even know what the drill sleeve is, as if they are in the design of drilling machine clamp, there is no drill sleeve concept.I really don't understand why the drilling jig is using drill sleeves If it is for the tool, you can put on a processed product, and then the tool is ok. Why?
In the actual drilling process, the drilling machine fixture should have guiding elements (drill sleeve).The role of drill sleeve is mainly used to determine the location of the drill bit, reamer, reamer and other fixed size tools, and the structure and size of the drill bush have been standardized. According to the characteristics of the use, the drilling sleeve has four types of fixed drilling sleeve, replaceable drill sleeve, fast change drill sleeve and special drilling sleeve. Moreover, the drill sleeve is inserted into the drilling template by "interference fit".The significance of drill sleeves is that they can locate and guide the machining of the cutting tools so as to improve the machining accuracy.
Q: Can the drill jig designed in mechanical processing be without drill bush?
You can drill without a drill sleeve, but that is a special and rare case. The drill sleeve is designed to prevent rapid wear and tear, and the clamp is seldom made of hard material, so most of the cases are made of drill sleeves.Don't set the diamond for example:1. folder specific very small, and simple structure, once in the diameter of 20 of the aluminum rod drill holes, I directly with a piece of Cr12 material made drilling mold, simple and fast2., the production of a single or very small number of cases, in order to save costs, then basically do not consider the amount of wear, you can not drill sleeves.
Q: How do you determine the size of the drill sleeve with a drill diameter of 6?. Thank you
The bore size of drill sleeve is determined according to F7 tolerance. That is: 6F7,6 deviation: +0.022. deviation +0.010.
Q: How should the drill bit of the 4mm bit be calculated?
Drilling sets play the role of drill guide and support, they should be coordinated with precision oriented, but also can not drill and drill sleeve between too much friction, usually with H7/g6 G7/h6
Q: Specific depends on what number you are cone sets, you can compare:0 1:19.212 9.0451 1:20.047 12.0652 1:20.020 17.783 1:19.922 23.8254 1:19.254 31.2675 1:19.002 44.3996 1:19.180 63.348
Specific depends on what number you are cone sets, you can compare:0 1:19.212 9.0451 1:20.047 12.0652 1:20.020 17.783 1:19.922 23.8254 1:19.254 31.2675 1:19.002 44.3996 1:19.180 63.348
Q: What kinds of drill sleeves are used? What are they used for?
2 types of fixed drilling sleeves; drilling and drilling sleeves;
Q: I wonder if it works Because of the large number of drilled holes, the wear of common steel is relatively large. But T10 steel needs quenching. I don't have any specialized equipment here. Usually it is heated by oxygen acetylene, and then it is quenched by oil. I wonder if T10 steel is good. What about the deformation? Outside diameter 15mm, inner hole 8.6MMIf not, what is the best way to do it? Or what to replace?
As the drill material set is the first choice of bearing steel GCr15, the quenching temperature is 835 ~ {850 cooling medium: oil, the tempering temperature is 150 ~ 170 hardness can reach 61 ~ 65}, GCr15 bearing steel with good hardenability, high abrasion resistance, high fatigue life. In general industry, this material is commonly used as drill sleeves. Carbon tool steel T10 drill can also set {the quenching temperature is 780 cooling medium: water or oil, the tempering temperature is 200 ~ 250 hardness of 60 ~ 64} in the use of performance is far better than GCr15 bearing steel. If there is no professional heat treatment equipment should pay attention to the quenching temperature and tempering temperature, especially the quenching temperature is 835 ~ 850 and I hope to help you.
All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.

1. Manufacturer Overview

Location Jiangsu, China
Year Established 2000
Annual Output Value
Main Markets North America
South America
Eastern Europe
Southeast Asia
Africa
Eastern Asia
Western Europe
Company Certifications ISO 9001:2000 ;ISO 14001:2004

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a) Trade Capacity
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Export Percentage 81% - 90%
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