Lork ASTM A312/Uns S30900ASTM A358 Steel Tube for Heating Elements 309 Stainless Steel Pipe

Product Description

Product Description

 

Introduction

LORK is a special stainless steel manufacturer with 20 years of manufacturing experience.
 

309/309S (UNS S30900/S30908) austenitic stainless steel is typically used for elevated temperature applications. Its high chromium and nickel content provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic 304.
 

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.
 

309 can be easily welded and processed by standard shop fabrication practices.
 

 Stainless Steel 309 Applications

309 is used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. Some examples include, but are not limited to:
▪ Heating elements
▪ Aircraft and jet engine parts
▪ Heat exchangers
▪  Carburizing annealing products
▪ Sulfite liquor handling equipment
▪  Kiln liners
▪ Boiler baffles
▪ Refinery and chemical processing equipment
▪ Auto exhaust parts

309 Stainless Steel Standards

▪ ASTM/ASME: UNS S30900
▪ EURONORM: FeMi35Cr20Cu4Mo2
▪ DIN: 2.4660
 

Stainless Steel 309 Chemical Composition 

Weight % (all values are maximum unless a range is otherwise indicated)

Element	309
Cr	22.0-24.0
Ni	12.0-15.0
C	0.2 max
Mn	2.0 max
P	0.045 max
S	0.03 max
Si	0.75 max

Stainless Steel 309 Mechanical Properties

alues at 68°F (20°C) (minimum values, unless specified)

0.2% Offset Yield Strength		Ultimate Tensile Strength		Elongationin 2"	Hardness
Psi(min)	Mpa	Psi(min)	Mpa	%	HBN (max)
45,000	310	85,000	586	50	202

Fabrication Data

309 can be easily welded and processed by standard shop fabrication practices.

Hot Forming

Heat uniformly at 1742 - 2192°F (950 - 1200°C). After hot forming a final anneal at 1832 - 2101°F (1000 - 1150°C) followed by rapid quenching is recommended.

Cold Forming

The alloy is quite ductile and forms in a manner very similar to 316. Cold forming of pieces with long-term exposure to high temperatures is not recommended since the alloy is subject to carbide precipitation and sigma phase precipitants.

Welding

309 can be readily welded by most standard processes including TIG, PLASMA, MIG, SMAW, SAW and FCAW.
Available Sizes And Specification

309 stainless steel pipe sizes and specifications
Grade	309
Stainless steel seamless pipe	Outside diameter: 4.0 - 1219mm, Thickness: 0.5 -100mm,Length: 24000mm
Stainless steel welded pipe	Outside diameter: 6.0 - 2800mm, Thickness: 0.3 -45mm,Length: 18000mm
Stainless steel capillary pipe	Outside diameter: 0.4 - 16.0mm, Thickness: 0.1 -2.0mm,Length: 18000mm
Stainless steel welded sanitary pipe	Outside diameter:8.0- 850mm, Thickness: 1.0 -6.0mm
Stainless steel seamless sanitary pipe	Outside diameter: 6.0- 219mm, Thickness: 1.0 -6.0mm
Stainless steel square pipe	Side Length: 4*4 - 300*300mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel rectangular pipe	Side Length: 4*6 - 200*400mm, Thickness: 0.25 - 8.0mm, Length: 18000mm
Stainless steel coil pipe	Outside diameter: 0.4 - 16mm, Thickness: 0.1 - 2.11mm
Standard	American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213 ASTM A511 ASTM A789, ASTM A790, ASTM A376, ASME SA335, B161, SB163, SB338, SB667/668Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85·European Standard: EN10216-5, EN10216-2Japanese Standard: JIS G3463-2006, JISG3459-2012Russian Standard: GOST 9941-81

Surface Treatment

 

Detection

Processing

 

Packaging & Shipping

Company Profile

FAQ

Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .

Q2: Can I have free sample before making orders?

A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.

Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .

Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .

Q5: How can I quickly get the price list ?
A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .