Tp309/Tp309s/Tp309h (UNS30900) Seamless Stainless Steel Pipe and Tube ASTM A213/ ASTM A312/ ASTM A249/ ASTM A269

• Type: Stainless Steel Pipes
• Standard: ASTM
• Grade: Duplex
• Certification: ISO, AISI, ASTM, GB, EN
• Shape: Round
• Technique: Cold Rolled
• Model NO.: TP309/TP309S/TP309H(UNS30900)
• Surface Treatment: Pickling and Annealing
• Transport Package: Plywood Case, Knitting Strips
• Specification: OD: 1/2"--40", WT: 10S--XXS
• Origin: China
• HS Code: 7304419000
• Production Capacity: 15000tons/Year

Product Description

Chemical Composition

Grade	C	SI	Mn	Cr	Ni	P	S	Fe
309	≤0.2	≤00.75	≤02	22.0-24.0	12.0-15.0	≤00.045	≤00.03	Balance
TP309S	≤0.08	≤00.75	≤02	22.0-24.0	12.0-15.0	≤00.045	≤00.03	Balance
TP309H	0.04.-0.10	≤00.75	≤02	22.0-24.0	12.0-15.0	≤00.045	≤00.03	Balance

Mechanical Properties

Grade	Tensile Strength Ksi(Mpa)	Yield Strength Ksi(Mpa)	Elongation in 2" or 50 mm, %	Hardness Brinell/Vickers	Hardness Rockwell
TP309S	≥75(515)	≥30(205)	≥35	≤192HBW/200HV	≤90HRB
TP309H	≥75(515)	≥30(205)	≥35	≤192HBW/200HV	≤90HRB

Applications

• Boiler baffles
• Furnace components
• Oven linings
• Fire box sheets
• Other high temperature containers.

Material Summary

TP309 Stainless Steel Tubing are austenitic chromium-nickel ss that provide excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures. The lower nickel content of 309 tubes improves resistance to sulfur attack at high temperatures. The high chromium and nickel content of SUS 309 Pipe & tubes provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic 304.

The steel resists oxidation up to 1900°F (1038°C) under non-cyclic conditions
Because of its high chromium and low nickel content, 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The steel is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.

Are you a factory or a trading company?

We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc. if you need. Because we know this market well

Do you have any certificate?

We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.

What is your delivery time?

It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.

What is your payment terms?

Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.

How can you guarantee the quality of my goods?

All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.

How do you make our business long-term and good relationship?

1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.