TP321 Stainless Steel Seamless Tube SS 321 Cold Drawn Seamless
Pipes
321 stainless steel seamless tube
grade: 304/304l.316;316L,310S,321,904L
OD: 1/8" to 10"
Thickness :SCH10-SCH160
Length: 6m-11m
Description:
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 SMLS Pipe:
Grade | TP304, TP304L, TP309S, TP310S, TP316, TP316L
TP317L, TP321, TP347, TP410, TP420, TP430, 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 |
Application
Widely used in Petroleum, Foodstuff, Chemical Industry,
Construction, Electric power,
Nuclear Energy, Biotechnology, Machinery, Paper making,
Shipbuilding, Boiler fields etc.
Products show
Applications:
321 stainless steel pipe seamless steel pipe (ASTM A312 ) is used
in the manufacture of various structural low intermediate pressure
boiler superheated steam pipe, water pipe and locomotive boiler
superheated steam pipe, pipes, small pipe and arch brick works of
high quality carbon structural steel hot rolling and cold drawing
(rolling) seamless steel tube.
321 stainless steel pipe: mainly used in the manufacture of high
pressure and over pressure steam boiler pipes, etc. With high
quality carbon structural steel, alloy steel and stainless heat
resistant steel seamless steel tube, the boiler tube by the party
under high temperature and high pressure pipe and works in high
temperature flue gas and steam will happen under the action of
oxidation and corrosion, so the steel pipe with high rupture
strength, high oxidation resistance, and have good organizational
stability, hydraulic prop.
Specifications:
Chemical Compostion
C | Si | Mn | P | S | Cr | Ni | Mo | Ti |
0.08 | <=1.00 | <=2.00 | <=0.035 | <=0.03 | 17.00-19.00 | 9.0-12.0 | 2.0-3.0 | ≥5×C% |
Mechanical properties
| Tensile strength of sigma b (MPa) : p. 520 |
| Conditions to yield strength sigma (0.2 MPa) : p. 205 |
| Elongation delta (%) : 40 or higher |
| Reduction of area bits (%) : 50 or more |
| Hardness: 187 hb or less; 90 HRB or less; 200 hv or less |
Packing details
we pack our pipe by waterproof paper , then we put these goods into
wooden box. the length of our pipe is 6-11m, so we advice load our
pipe buy 40GP container.
Here is the packing picture of us
Photos of our products
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.
