ASTM A312 Tp321 Grade Seamless Stainless Steel Pipe

ASTM A312 TP321 grade seamless stainless steel tube pipe  Stainless steel descriptionStainless steel is an alloy of iron that contains chromium and other alloying metals like nickel, molybdenum, titanium, copper,carbon, and nitrogen. Stainless Steel Tubing is used in aircraft hydraulic lifts, factories, mills, producti

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ASTM A312 TP321 grade seamless stainless steel tube pipe 
 

Stainless steel description
Stainless steel is an alloy of iron that contains chromium and other alloying metals like nickel, molybdenum, titanium, copper,carbon, and nitrogen. Stainless Steel Tubing is used in aircraft hydraulic lifts, factories, mills, production lines, fuel and heat industries, military, nuclear development, etc. The stainless steel pipes & tubes available in various grades such as 304, 316L, 309S, 310S, 317L, 321, 321H, 347H, 316Ti are used for manufacturing.

Stainless Steel Seamless Pipes & Tubes are formed by using Water Hydraulic Hot Extrusion Press that uses hot extruded hollows or pipes as raw material. They are used in various fields like heat exchangers, Nuclear Power Plants, Oil & Gas, Petrochemical & Refinery, Chemical & Fertilizer, etc.

Stainless steel seamless pipe is a kind of hollow long steel profile, mainly used in petroleum, chemical, medical, food, construction,mechanical instrumentation and other industrial transmission pipes and mechanical structural components. For seamless, outside diameters are from 6mm to 1400mm with wall thickness from 0.5mm to 70mm. The annual output capacity is 35,000 tons.
 
Test and inspection items before shipment
100% Dimension & Visual Examination
100% PMI testing for Chemical composition
The ISO 9001 management system ensure the high quality of the products;
Lab testing for Tension, Flaring, Hydrostatic, Radiographic, non-destructive Test;
Optional: Straightness, Roughness, Impact Test, Grain Size Determinations, Intergranular Corrosion;


Stainless steel 321 is an electric-furnace processed austenitic stainless steel. It is non-heat treatable and non-magnetic in the annealed condition. This alloy contains 18% chromium, 8% nickel and a substantial addition of titanium. The titanium forms insoluble and stable carbide, which ties up all the carbon in the alloy and therefore prevents it from precipitating as chromium carbides. This leaves the chromium in solution to resist corrosion to a very high degree. This is extremely beneficial in applications of temperatures ranging from 800° F, to 1600° F., as it eliminates the necessity for re-annealing after fabrication.
 
Applications
Type 321 is used principally for applications involving welding or sustained elevated tem­perature operations where re-annealing is not practical, It is used extensively in the aircraft and missile industries for engine parts, heat exchangers, exhaust stacks, rocket engines, manifolds, and etc.
 
Corrosion Resistance
This alloy is extremely resistant to intergranular corrosion and has very good corrosion resis­tance in weld areas. It has slightly less corrosion resistance to atmospheric conditions than Type 302 or Type 304 in the annealed condition.
 

Stainless Steel SMLS Pipe:

Grade
TP304, TP304L, TP309S, TP310S, TP316, TP316L, TP317L, TP321, TP347, TP410, TP409, TP420, TP430, TP439, TP436, TP446, S31803, S32205, 904L etc.
Production standard
ASTM A312, A213, A269, A511, A790, A789; ASME SA213, SA312, SA789, SA790;
DIN17456, DIN17458, EN10216; JIS G3456, G3448, G3459, G3463 etc.
Outer diameter
1/8",1/4",3/8".....48" or 10.3mm to 2000mm
Wall thickness
Sch 5s to SchXXS
Length
3000mm, 5800mm, 6000mm, or as per customer request
Stock
Common stock 20000 tons
End treatment
Plain end, or bevel end, or end with cap
Surface treatment
Acid pickling, Sand blasting, polishing (240 grit, 320 grit, 400 grit, 600 grit, 800 grit);
MOQ
1 pc
Service
each pipe PMI testing to check chemical composition
 

Stainless Steel Pipe Value Add

Polishing

Can polish nearly any stainless steel pipe item to a #4 polish, #6 Polish, #7 polish or a #8 mirror finish.
Stainless steel polished pipes can also be cut to required size.

Beveling

Can bevel the edges of stainless steel pipe to prepare for welding or other processes.

Honing & Turning

Can hone pipe and tube, using a precision abrasion process in order to obtain a desired finish or close dimensional tolerance.

Heatreating & Annealing

Some grades of stainless steel pipe can be heatreated to change the mechanical properties.

Positive Material Identification (PMI)

Can perform PMI testing in house for most stainless steel grades, or we can work with independent labs to complete PMI in order to meet customer specifications.

UT Testing

In some cases, UT testing of the stainless steel pipes may be required.
We can assist you with this requirement.


Application

Widely used  in Petroleum, Foodstuff, Chemical Industry, Construction, Electric power,

Nuclear Energy, Biotechnology, Machinery, Paper making, Shipbuilding, Boiler fields etc.

ADVANTAGE:

(1): High quality stainless steel tube with reasonable price. 
(2): Wide excellent experiences with after-sale service. 
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely. 
(5): Trial order can be done in one week. 
(6): Samples can be provided as your requirements. 


Products show

ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
ASTM A312 Tp321 Grade Seamless Stainless Steel Tube PipeASTM A312 Tp321 Grade Seamless Stainless Steel Tube PipeASTM A312 Tp321 Grade Seamless Stainless Steel Tube PipeASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
Packing & Loading

ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
Our Certificate
ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe

Our Customers

ASTM A312 Tp321 Grade Seamless Stainless Steel Tube Pipe
FAQ

Q: How about the MOQ? If my first order qty is small, will you accept?
A: We would like to do our best to support your trial order qty, so even 1 pc or 1 kg is ok to start cooperation; because we have confidence to move on second order with your esteemed company.

Q: What is your payment terms ?
A: Commonly two payment term for new customers:
1) 30% T/T as deposit , 70% balance against B/L copy;
2) 100% Irrevocable L/C at sight;
If you need any other terms, pls feel free to contact us too, we will try our best.

Q: How long is your delivery time?
A: Our daily inventory is more than 8000 tons, so for common product size, just need 5 days from stocks; if the special size from new production, delivery 20-30 days.

Q: How about the samples ? is it free or extra fees?
A: Yes, we would like to supply the samples before order; if the samples from stock, it will be free; if the samples from new
production, we will charge some reasonable cost, but this amount will be deducted from your first order invoice.

Q: How to control and guarantee your shipment quality?
A: 1) All our factories are ISO9001 certified facility; 2) World famous origin mills as TISCO, Baosteel
3) Ex factory inspection by our own laboratory 4) SGS/BV Third party inspection before delivery

Q: Is there any aftersales service? How long guarantee for your product ?
A: Yes, we will provide the after sales service; so if there is any confusion or problem during your usage process, pls feel free to contact us anytime, we will do our best support; and commonly we can guarantee for our product for 3-5 years.


Welcome to send an inquiry, we will quote you the best price !!!

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