Zhongzheng Stainless Steel Co., Ltd.: 1Yr

Tianjin, China; Main products: Stainless Steel, Valve, Flange, pipe fitting

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Home > Products > Industrial Pipeline Series > Seamless Stainless Steel Tube Tp309/Tp309s/Tp309h (UNS30900) ASTM A213/ ASTM A312/ ASTM A249/ ASTM A269

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

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US$ 690 - 1000 / Ton

1 Ton(Min. Order)

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Delivery Detail8 days

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Product Details

Type	Stainless Steel Pipes	Certification	ISO, ROHS, IBR, AISI, ASTM, GB, EN, DIN, JIS, Other
Shape	Round	Grade	Other
Technique	Other	Surface Treatment	Polished
Standard	ASTM, AISI, GB, JIS, DIN, EN, Other	Specification	OEM
Trademark	ZHONGZHENG INTERNATIONAL	Origin	China

Product Description

316L TP304 BA clean pipe

309S is the low-carbon version of 309, and is recommended for applications where sensitisation, and subsequent corrosion by high temperature gases or condensates during shutdown may pose a problem.

309S stainless steel pipe is used often for higher temperature applications. While its oxidation resistance surpasses that of alloy 310, its resistance to corrosion is equivalent to that of alloy 310. Alloy 309 is highly weldable and cold formable, although it does require stronger forming machines and continuously increasing pressure. Typical machining methods are used for stainless steel grade 309, but it is tougher and does tend to harden more quickly. Like 310 Stainless Steel, 309S Stainless Steel has a high chromium and nickel content which grants excellent resistance to aqueous corrosion.

309S Stainless Steel Pipe manufacturer according to ASTM A213 and ASTM A312 ASTM A269 specifications.

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.

Annealing. Temperature between 1050°C and 1150°C and water quenching. This kind of heat treatment ensures that all carbides are in solution.
2. 309S Stainless Steel Tubing Stress Relieving 250-400°C for 1 hour.
3. 309S Stainless Steel Tubing Hot Working
Initial forging and pressure 1150-1 200°C
Finishing temperature 1000°C

TP309/TP309S/TP309H(UNS30900) Chemical Composition

Grade	C	SI	Mn	Cr	Ni	P	S	Fe
309	≤0.20	≤0.75	≤2.00	22.00-24.00	12.00-15.00	≤0.045	≤0.03	Balance
TP309S	≤0.08	≤0.75	≤2.00	22.00-24.00	12.00-15.00	≤0.045	≤0.03	Balance
TP309H	0.04-0.10	≤0.75	≤2.00	22.00-24.00	12.00-15.00	≤0.045	≤0.03	Balance

TP309/TP309S/TP309H(UNS30900) Mechanical Properties

Grade	Tensile Strength Ksi(Mpa)	Yield Strength Ksi(Mpa)	Elongation in 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

TP309/TP309S/TP309H(UNS30900) Material Summary

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.

Company Profile

Zhongzheng Stainless Steel Co., Ltd.

Zhongzheng Stainless Steel Co., Ltd. is a China-based manufacturer specializing in R&D, production, and distribution of stainless steel products. Established in the early 2000s, it serves industries including construction, machinery, food/medical equipment, and energy with precision tubes, sheets, profiles, and custom components.

Contact Us

Zhongzheng Stainless Steel Co., Ltd.: Contact nameLaijing Bu
Chat Now; AddressRoom 104-07, Building 5, Jinghu Technology Park Huanajinghu Garden, Donglihu Subdistrict Dongli District,

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Product Categories

Galvanized steel pipe	Steel coil sheet and plate	Galvanized Steel Sheet	Industrial Pipeline Series
Industrial sheets and rolls	Industrial Valve Series	Industrial Accessories Series	Sanitary valve series
Hygienic grade piping series	Hygienic grade accessory series	Sanitary grade panels and rolls	Special Materials
Galvanized steel	Sanitary Pipeline Series	Titanium and titanium alloy steel

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

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