Hot rolled black seamless steel tube Gr.B

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade:  10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension: 

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

 

 

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD   +1%/-1%

                WT  +12.5%/-10%

12. Chemical composition:

 

Models of Steel Pipes

Chemical Component

 

Steel 20

 (ASTM A106B)

C

Si

Mn

P

S

Cu

Ni

Cr

0.17~0.24

0.17~0.37

0.35~0.65

0.035max

0.035max

0.25max

0.25max

0.25max

Steel45 (ASTM 1045)

0.42~0.50

0.17~0.37

0.50~0.80

0.035max

0.035max

0.25max

0.25max

0.25max

16Mn(Q345B)

0.12~0.20

0.20~0.55

1.20~1.60

0.035max

0.035max

0.25max

0.25max

0.25max

45Mn2 ( ASTM1345)

0.42~0.49

0.17~0.37

1.40~1.80

0.035max

0.035max

0.3max

0.3max

0.30max

 


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Q:How can galvanized steel pipe be connected with stainless steel pipe?
Attention should be paid to the zinc coating at the side of the groove before welding. It is OK to brush silver powder after welding. There is a lot of information about the welding of carbon steel and stainless steel. Just check it online.
Q:What are the advantages of PVC pipe and galvanized steel pipe?
PVC pipeline use temperature is -5 to 90 degrees or so, according to the current market price of around 6000 yuan per ton, the price is cheap. Its corrosion resistance is good, can resist most of the acid and alkali, and unlike the steel pipe that is easy to rust, so in the construction of the upper and lower water pipes and other fields have gradually replaced the trend of steel pipe.
Q:Can galvanized pipe be welded with seamless steel tube? What should I do to connect?
Processing method is very simple, I suggest you add blue disk connection, you can not use welding ~ ~ ~!The gas pipe is the best galvanized pipe, mainly play a role in anti-corrosion ~ ~ ~ ~ if you must use seamless connection can.When welding, can open a certain groove, use galvanized material electrode, but the premise is must be welded with seamless tube firmly.
Q:What's wrong with the 3PP anticorrosive steel tube?
PP and PE are similar in processability, and the 3PE coating can be used to produce 3PP coatings without the need for a special 3PP coating line. However, the difference between PP and PE materials makes the 3PP and 3PE coatings show different properties, which can be applied to different environments. The advantages of 3PP coating on some properties make it possible to play an important role in the field of 3PE coating. Therefore, many foreign pipeline projects use 3PP anticorrosive coating.
Q:What quota is reserved for buried DN20 steel pipe?
If it is reserved for embedded pipe pre buried steel waterproof casing, set of waterproof casing steel production and installation is to set the quota items, if the outdoor installation of welded steel pipe buried steel casing pre quota items, if it is a reserved hole, then there is no need to set the quota items.
Q:What is the outer diameter and wall thickness of the welded steel pipe of national standard DN250?
DN250 is the nominal diameter, the outer diameter of the steel pipe is 273mm, the thickness is above 6.5mm.
Q:Why should the weak electricity be pre buried with galvanized steel pipe?
Galvanized steel pipe with hot-dip galvanizing or galvanized coating on it. Galvanizing can increase the corrosion resistance and prolong the service life of the steel pipe. The use of galvanized pipe is very wide, except for water, gas, oil and other general low pressure fluid pipeline, is used in petroleum industry especially offshore oil well pipe and oil pipe, chemical coking equipment oil heater, cooler, oil pipe exchanger for coal distillation, and support piles, Zhanqiao mine tunnel the tubes.
Q:Theoretical weight of 25*25*1.5 square steel tubes
Theoretical weight can be directly from the steel tube under the table look up, you can also press type calculation:Weight per meter =4x, wall thickness x (side length - wall thickness) x0.00785. The length of the square tube and the wall thickness are in millimeters, and the weight of each square meter is in kilograms.
Q:What is the outer diameter of the steel tube?
The outer diameter refers to the maximum diameter including the thickness of the steel tube, the inner diameter is the length of the hollow part inside, and the outer diameter minus the inside diameter is the thickness of the steel pipe
Q:How is the steel pipe dance installed at home?
Portable pipe with instructions and CD can be installed, portable steel pipe of a new patent, convenient installation, no restriction site, no drilling, readily removable, adjustable height, stainless steel, solid.

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