309S Stainless Steel Pipes
309S Stainless Steel Pipes and Tubes Manufacturer, Stockholder And
Supplier
Alloys 309 and Alloys 309S are austenitic chromium-nickel stainless
steels that are often used for higher temperature applications. Due
to their high chromium and nickel content, Alloys 309 and 309S are
highly corrosion resistant, have outstanding resistance to
oxidation, and excellent heat resistance while providing good
strength at room and elevated temperatures. The only significant
difference between 309 and 309S is the carbon content. Alloy 309S
has a much less carbon composition which minimizes carbide
precipitation and improves weldability.
Alloy 309 (UNS S30900) is an austenitic stainless steel developed
for use in high temperature corrosion resistance applications. The
alloy resists oxidation up to 1900°F (1038°C) under non-cyclic
conditions. Frequent thermal cycling reduces oxidation resistance
to approximately 1850°F (1010°C).
Because of its high chromium and low nickel content, Alloy 309 can
be utilized in sulfur containing atmospheres up to 1832°F (1000°C).
The alloy is not recommended for use in highly carburizing
atmospheres since it exhibits only moderate resistance to carbon
absorption. Alloy 309 can be utilized in slightly oxidizing,
nitriding, cementing and thermal cycling applications, albeit, the
maximum service temperature must be reduced.
When heated between 1202 – 1742°F (650 – 950°C) the alloy is
subject to sigma phase precipitation. A solution annealing
treatment at 2012 – 2102°F (1100 – 1150°C) will restore a degree of
toughness.
309S (UNS S30908) is the low carbon version of the alloy. It is
utilized for ease of fabrication. 309H (UNS S30909) is a high
carbon modification developed for enhanced creep resistance. It
most instances the grain size and carbon content of the plate can
meet both the 309S and 309H requirements.
Alloy 309 can be easily welded and processed by standard shop
fabrication practices. Specifications: UNS S30900 / S30908
Standards:
- ASTM/ASME: UNS S30900/S30908
- EURONORM: FeMi35Cr20Cu4Mo2
- DIN: 2.4660
| Standard | ASTM, AISI, GB, JIS, customers' requests available |
| Size | Round Tube: OD: 16-119mm or customized |
| Thickness | 0.25mm-3.0mm |
| Length | 6m or according to customers' request |
| Sample | Free sample is available, but freight should be paid by you |
Tolerance
| Outer diameter: ±0.2mm |
| Thickness: ±0.05mm |
| Length: ±0.5mm |
| Ends | In plain end or bevelled ends or as your requirements |
| Welding Line Type | ERW (Electrical Resistance Weld) |
Finishing
| A. Sanded |
| B. Gloss #400,Mirror #600 - #1000 |
| C. Brushed |
| D. Wood Grain |
| E. Embossed, Threaded |
| Application | Decorations, constructions, food industry, etc. |
| Certification | ISO, SGS |
| Round Pipe Size | 16, 17, 18, 19, 20, 21, 22, 23, 25, 28, 31.8, 35, 36, 38.1, 48,
50.8, 60, 63.5, 76.2, 89, 101, 114 mm |
| Square Pipe Size | 17, 18, 19, 20, 21, 22, 23, 24, 25, 28, 30, 36, 38, 50 mm |
| Rectangle Pipe Size | 10*30, 10*40, 10*50, 20*10, 23*11, 24*12, 25*13, 28*25, 28*13,
29*14, 30*15, 30*20, 30*22, 34*22, 36*23, 50*25, 60*30, 75*45,
95*45 mm |
| Thickness | exact 0.25, 0.28, 0.32, 0.37, 0.41, 0.51, 0.61, 0.71, 0.91, 1.11,
1.15, 1.41 mm |
| Length | 6m or according to customer’s request |
| Outer diameter | 6.35-219mm |
| Tolerance | Outer diameter :±0.2mm |
| Thickness :±0.02mm |
| Length :±0.5mm |
| Process method | Code drawn, annealed with nitrogen protection, ultrasonic,
automatic shape, polished |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray
detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling
machine Sand-blasting machine, etc |
| Origin | West Europe / Japanese / Indian / USA / Korean / American /
European |
| Test Certificates | Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials
Certificate, 100% Radiography Test Report, Third Party Inspection
Report |
Grade | C | Cr | Ni | Mo | Other |
301 | ≤0.15 | 16.0~18.0 | 6.00~8.00 | - | - |
301L | ≤0.030 | 16.0~18.0 | 6.00~8.00 | - | N≤0.20 |
304 | ≤0.08 | 18.0~20.0 | 8.00~10.50 | - | - |
304J1 | 0.02~0.05 | 16.5~17.1 | 7.5~7.9 | - | Cu1.9~2.2 |
304L | ≤0.030 | 18.0~20.0 | 9.00~13.00 | - | - |
304N1 | ≤0.08 | 18.0~20.0 | 7.00~10.50 | - | N0.10~ 0.25 |
304N2 | ≤0.08 | 18.0~20.0 | 7.50~10.50 | - | Nb≤0.15 |
316 | ≤0.08 | 16.0~18.0 | 10.00~14.00 | 2.00~3.00 | - |
316L | ≤0.03 | 16.0~18.0 | 12.00~15.00 | - | - |
321 | ≤0.08 | 17.0~19.0 | 9.00~13.00 | - | Ti5×C% |
409L | ≤0.03 | 17.0~19.0 | - | - | Ti6×C%~0.75 |
410L | ≤0.03 | 11.0~13.5 | - | - | - |
430 | ≤0.12 | 16.0~18.0 | - | - | - |
430J1L | ≤0.025 | 16.0~20.0 | - | - | Nb8(C%+N%)~0.8
Cu0.30~0.80 |
436L | ≤0.025 | 16.0~19.0 | - | 0.75~1.25 | Ti,Nb,Zr8
×(C%+N%)~0.8 |
410 | ≤0.15 | 11.5~13.5 | - | - | - |
420J1 | 0.16~0.25 | 12.0~14.0 | - | - | - |
420J2 | 0.26~0.4 | 12.0~14.0 | - | - | - |
2205 | 0.38~0.43 | 21~23 | 4.5~6.5 | 2.5~3.5 | - |
2507 | ≤0.03 | 24.0~26.0 | 6.00~8.00 | 3.0~5.0 | - |
Surface Finish
| Characteristics & Application |
| Hot-rolled surface, annealed and pickled, can be used as
cold-rolling material,industial tanks and chem i cal devices. |
| Cold-rolled, an nealed and pick led with out skinpassing the dull
prod ucts can be used as auto mo bile parts, build ing materrials
and pipings. |
| The surface brightness and flatness of NO.2B is better than NO.2D.
Then through a special surfacetreament to improve its mechamical
properties, N02B could nearly satisfy com pre hen sive uses. |
| Polished with abra sive belt of grit #100#120,have bet ter bright
ness with dis con tin u ous coarse stria, used as in ner and ex ter
nal or na ments for building, elec tri cal ap pli anc es and
kitchen uten sils etc. |
| Polished with abrasive belt of grit #150#180, have better
brightness with discontinuous coarse stria, but thinner than NO.3,
are used as bathtud buildinginner and external ornaments electrical
appliances, kitchen utensils and food processing equipment etc. |
| Polished with abrasive belt of grit #150-320 on the No.4 finish and
has continuous streaks, mainly used as building ornaments,
elevators, door of building, frontal plate etc. |
| Cold rolled, bright an nealed and skin passed, the prod uct has ex
cel lent bright ness and good re flex iv i ty like mirror, used for
lectrical appliances, mirror, kitch en apparatus, or na ment ma te
ri als etc. |
Product Applications
Good weldability and flame cutting, nonmagnetic. The shipbuilding
industry, welded constructions.
Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: Approx. 7.80
Solution Annealing
Harden from a temperature of 1000-1050oC followed by water
quenching.
.
Product show
Manufacturing Technique
Certificate
Package | Standard export seaworthy package,suit for all kinds of transport,
or as required. |
Water-proof Paper + Edge protection + Wooden Pallets |
Bulk Size | Any size |
Loading Port | Tianjin, Xingang Port, Qingdao,Shanghai, Ningbo, or any China
Seaport |
Container | 1*20ft container load Max. 25 Ton, Max. length 5.8m |
1*40ft container load Max. 25 Ton, Max. Length 11.8m |
Delivery Time | 7-15 days or according to the order's quantity |
Duplex Stainless Steel Pipes and Tubes Applications
The Duplex Stainless Steel Pipes and Tubes are used in the
following applications:-
- Chemical Processing, Transport, and Storage
- Oil and Gas Exploration and Offshore Rigs
- Mil and Gas Refining
- Marine Environments
- Pollution Control Equipment
- Pulp & Paper Manufacturing
- Chemical Process Plant
FAQ
Q. Are you a factory or trading company?
A. We are a factory company.
Q. What is the MOQ?
A. Sample order is acceptable, And some samples can be free.
Q3. How do you control quality?
A3: Mill Test Certification is supplied with shipment, Third Party
Inspection is available.
Q. How many countries have you already exported?
A: Exported to more than 50 countries mainly from America, Russia,
UK, Kuwait, Egypt,Turkey, Jordan, India, etc.
Q. How do you resolve the problem with your products?
A. Person of aging services: For customer complaints commissioner set
up special complaint handling, complaint issues recorded the the
first time, and find the relevant person in charge of the feedback
and resolution. Details check our "Quality corrective action
report"
Q. How long do you need the delivery time?
1)Supply within 5-10days (product in our stock list)
2)Custom products need to be calculated according to the quantity
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is
15-20 days if the goods are not in stock, it is according to
quantity.
Q.How can we get your price?
A. We need the below information to quote for you:
1. Product Name
2. Standard
3. Material Grade (Chemical Composition)
4. Dimension
5. Quantity
6. The Drawing for Special Parts
