12Cr1MOVG Seamless Alloy Steel Tube For Large Diameter Alloy Tube Customization
Brand Name:TOBO
Certification:SGS/ABS/LR/TUV/DNV/BIS/API/PED
Model Number:316L
Minimum Order Quantity:1 PCS
Delivery Time:20 workdays
Payment Terms:T/T, Western Union
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Location:
Shanghai Shanghai China
Address:
No.208,Lvdi Road,Baihe Town,Qingpu District,Shanghai,China
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12Cr1MOVG Seamless Alloy Steel Tube Factory Price Directly For Large Diameter Alloy Tube Customization
Steel tubes are divided into seamless steel tubes and welded steel
tubes. Seamless steel tube production process is the solid tube
billet or steel ingot into hollow capillary, and then rolled into
the desired size of the steel tube. Different methods of
perforating and rolling are used to produce seamless steel tubes.
The production process of welded steel pipe is to bend the steel
billet (steel plate or strip) into a tube shape and then weld the
gap to become steel pipe. Because of the different forming and
welding methods used, different methods of producing welded steel
pipe are formed.
Seamless steel tubes are mainly produced by hot rolling. The
extrusion method is mainly used in the production of difficult to
perforate low plastic high alloy steel pipe or special-shaped steel
pipe and composite metal pipe. The hot rolled pipe can be processed
into small diameter and thin wall steel pipe by cold rolling and
cold drawing. The welding steel pipe process is simple, the
production efficiency is high, the cost is low, the product variety
expands day by day. Seamless and welded steel tubes
Delivery length is also called customer required length or contract
length. The standard has the following provisions on delivery
length:
A, ordinary length (also known as irregular length) : where the
length is within the standard length range and there is no fixed
length requirements, are called ordinary length. For example,
structural pipe standards: hot rolled (extruded, expanded) steel
pipe 3000mm ~ 12000mm; Cold-drawn (rolled) steel pipe 2000mm ~
10500mm.
B. Fixed length: the fixed length shall be within the normal length
range and is a fixed length specified in the contract. But in
practice, it is impossible to cut absolute length, so the standard
stipulates the allowable positive deviation value for the length of
definite length.
The structural pipe standard is:
The yield of fixed length pipe decreases more than that of normal
length pipe, so it is reasonable for the manufacturer to raise the
price. Add price range each enterprise is not consistent, add price
10% or so on base price foundation commonly.
C. Length of multiples: the length of multiples shall be within the
normal length range, and the single length and the multiple of the
total length shall be indicated in the contract (e.g. 3000mm×3,
i.e. 3000mm 3x, with a total length of 9000mm). In practice, the
allowable positive deviation of 20mm should be added to the total
length, plus the incision allowance should be left for each single
ruler length. Take the structural pipe as an example, the specified
incision allowance: outer diameter ≤159mm is 5 ~ 10mm; Outer
diameter >159mm is 10 ~ 15mm.
If there is no length deviation and cutting allowance in the
standard, it shall be indicated in the contract through negotiation
between the supply and demand parties. Double ruler length is the
same as fixed ruler length, which will greatly reduce the yield of
production enterprises. Therefore, it is reasonable for the
production enterprises to raise the price, which is basically the
same as the fixed ruler length
12Cr1MOVG Seamless Alloy Steel Tube For Large Diameter Alloy Tube Customization
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