seamless stainless boiler tubes

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seamless boiler tubes
Standard: A269, A213,

seamless boiler tubes                  

Material: 304L,316L,316Ti,321,317L,310S,347H,904L, 321 stainless steel welded pipe etc.
Standar duplex steel d:  A269, A213, A312 201 stainless steel round tube

1. Material

TP304/304L, 316/316L, 310S, 317L, 321, 347H,etc.

S31803, 32750, etc.

2. Sandard


3. Type


4. Size rangetube

OD: from 6mm to 1000mm (NPS from 1/8'' to 40'')

WT: from 0.7mm to 38mm (Schedule from 5S to XXS)

Length: fix length or un-fix length, Max 30meters

5. Produce process

Pilgering and cold drawn

6. Surface process

Pickling and annealing

AP tube

BA tube

7. Marking


8. Package

Bundles with waterproof cloth outside.

or plywood box.

9. Min order quantity

500 KG

10. Sample


11. OEM accepted


12. Production capacity

300 tons per month

13. Payment term

T/T or L/C.

14. Certificate

ISO 9001, PED

15. Third party ertificate

BV, LR, SGS, TUV, CCS, ABS, etc.

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Q:304L stainless steel pipe can withstand 0.1MPA?
Stainless steel pipe is a kind of hollow long strip round steel, mainly used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts. In addition, the bending and torsional strength of the same weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also used to produce all kinds of conventional weapons, guns, shells and so on.
Q:Can stainless steel pipes spray black paint
Can. The surface roughening with a thick gauze, do not use ordinary paint intensity difference. With resin paint, paint can be
Q:What kind of stainless steel square tube is used in ordinary square tubes?
General specifications of stainless steel tube at the inner diameter and wall thickness, the length can be decided according to the needs of consumers, the common market of stainless steel pipe specifications are: diameter more than 6.0mm, the wall thickness below 13mm; diameter greater than 30mm, the wall thickness is greater than 1.2mm; diameter greater than 30mm, wall thickness less than 1.2mm.
Q:Why can't stainless steel tubes be cut with acetylene?
That is because the iron element in the high temperature, if the above 99,6% will occur on the oxygen oxidation phenomenon is very strong, because of the heat transfer cycle, in order to make the cutting to continue uninterrupted, continuous heating it when cutting calories.
Q:About stainless steel welding deformation
For welding of grade 304 stainless steel, the current can be adjusted a little, not preheating, to prevent deformation after welding, the welding sequence should pay attention to, such as left -- right -- in the welding line, avoid welding head, to prevent warping.
Q:Where is the difference between seamless steel pipe or welded pipe?
1., the appearance of seamless steel pipe and welded pipe difference in the welded pipe wall welded tendons, and seamless No.2. seamless pipe pressure is higher, welded pipe is generally in 10 or so MPa, now welded pipe to do seamless processing.
Q:Mechanical properties of stainless steel tubes
High temperature fatigue is the process of damage to fracture due to repeated stress changes in the material at high temperature. The results show that, at a certain high temperature, the fatigue strength of the 8 power high temperature of 10 is 1/2 of the high temperature tensile strength at this temperature.
Q:Comparison of ring type connection and argon arc welding of stainless steel pipe
1. The pipe is embedded in the pipe, and the ring pressure connection strength is high;2. After the ring is pressed, the inserted part of the pipe and the pipe is a closed ring, which can not generate spiral loosening and strong vibration resistance;3. The sealing material fills the entire seal cavity tightly and the seal is very reliable;4. Easy to install and quick.5. Shrinkage and anti drawing test of ring seal joint
Q:What is the welding of stainless steel?
Sheet argon arc welding greater than 10mm by hand welding or gas shielded welding
Q:What's the difference between cold drawn steel tube and hot rolled steel tube?
Cold drawn steel tubes are produced by drawing, extruding, piercing and the like. The whole steel pipe has no seams. It's a round, square, rectangular steel with a hollow cross section without any seams. It is made of steel ingot or solid pipe blank by piercing and then made by cold casting.

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