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ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube

ASTM A213,ASTM A312,ASTM A789,ASTM A790,DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • ASTM A213,ASTM A312,ASTM A789,ASTM A790,DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • EN 10216-5,EN 10297-2 Seamless Stainless Steel Pipe
  • ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
  • ASTM A213,ASTM A312,ASTM A376, DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
Model No.︰-
Brand Name︰ASME SA213,ASME SA312,ASME SA789,EN10216-5
Country of Origin︰-
Unit Price︰US $ 8.5 / Kg
Minimum Order︰1000 Kg
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Product Description

 

 

 

Reference Standards:

ASTM/ASME

ASTM A 213/A213M,ASME SA213/SA213M Seamless Ferric and Austenitic Alloy-Steel Boiler, Su[perheater, and Heat-Exchanger Tubes
ASTM A269/A269M, ASME SA269/SA269M Seamless and Welded Austenitic Stainless Steel Tubing for General Service 
ASTM A312/A312M, ASME SA312/SA312M Seamless and Welded Austenitic Stainless Steel Pipes
ASTM A376/A376M, ASME SA376/SA376M Seamless austenitic steel pipes for high-temperature central-station service
ASTM A789/A789M, ASME SA789/SA789M Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A790/A790M, ASME SA790/SA790M Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe 

 

BS Standards

BS 3605 Austenitic stainless steel pipes and tubes for pressure purposes
BS 3606 Steel tubes for heat exchangers
 
NF Standards
NF A49-117 Seamless ferritic and austenitic stainless steel tubes for general service
NF A49-214 Seamless austenitic steel tubes for use at high temperatures.
NF A49-217 Seamless ferritic, austenitic, and ferritic-austenitic stainless steel tubes for heat exchangers
NF A49-317 Seamless plain-end austenitic stainless steel mechanical tubing
 
German Standards
DIN 17456 Seamless circular austenitic stainless steel tubes for general service
DIN 17458 Seamless circular austenitic stainless steel tubes subject to special requirements
DIN 17459 Seamless circular high-temperature austenitic stainless steel tubes.Materials for pressure vessels – austenitic steels.
DIN 28180 Seamless steel tubes for tubular heat exchangers
 
JIS-Standards
JIS G3446 Stainless Steel Pipes for Machine and Structural Purposes
JIS G3463 Stainless Steel Boiler and Heat Exchanger Tubes
 
GOST
GOST 9940 Seamless stainless steel tubes, hot finished(5-273 mm)

GOST 9941 Seamless stainless steel tubes, cold and hot finished(5-273 mm) 

 

Description of Stainless Steel

There are four major types of stainless steel:

Austenitic is the most widely used type. It has a nickel content of at least 7%, which makes it very flexible. It is used in a range of houseware products, industrial piping and vessels, constructional structures and architectural facades. This is not hardenable by heat treating.

Ferritic stainless steel has similar properties to mild steel, but better corrosion resistance. This type of steel is commonly used in washing machines, boilers and indoor architecture.

Martensitic stainless steel is a very hard, strong steel. It contains around 13% chromium and is used to make knives and turbine blades. Duplex is both a austenitic and ferritic and primarily used in chemical plants and piping applications. They usually contain approx. 22-25% chrome and 5% nickel with moly and nitrogen. They have higher yield strength and greater stress corrosion cracking resistance to chloride than austenitic.

Precipitation Hardening stainless steels are chrome-nickel stainlesses which contain alloying additions such as aluminum, copper or titanium that allow them to be hardened by a solution and aging heat treatment. They can be either austenitic or martensitic in the ages condition.

303 – 303 stainless is the most machinable of the austenitic grades of ss. With the addition of sulfur to this grade, the sulfur enhances the alloys machinability which is ordinarily difficult to machine. Applications for 303 is shafts, valve bodies, valve trim and food industry applications where 304 is normally used. 303 stainless is resistant to atmospheric corrosion, food products, sterilization solutions and many organic chemicals as well as a variety of inorganic chemicals. 

304 – 304 and 304L (low carbon version) is a low carbon austenitic alloy. By keeping the carbon at .03% max, it minimizes carbide precipitation during welding. Applications are the same as 303

310 – Grade 310, combining excellent high temperature properties with good ductility and weldability, is designed for high temperature service. It resists oxidation in continuous service at temperatures up to 1150°C provided reducing sulphur gases are not present. It is also used for intermittent service at temperatures up to 1040°C. Applications for molten salt, sulfur bearing gas and heat exchanger and recuperator tubing.

316 – 316 is the 2nd most common stainless after 304 and is commonly used in food and surgical applications. The addition of moly prevents specific forms for corrosion. By keeping the carbon at .03% max, it has been shown to minimize carbide precipitation during welding. Decreasing the sulfur will enhance its ability for electro-polishing. It is also known as a marine grade due to the increased resistance to chloride corrosion in comparison to 304. It is generally used in marine applications and watches, pharmaceutical equipment, valve bodies, bleaching and dying equipment or the textile and food industry.

317 – 317 is a molybdenum-bearing austenitic chrome nickel similar to 316 except the alloy content is higher. It was developed primarily to more effectively resist the attack of sulfurous acid compounds.

321 – this is titanium bearing stainless and it is stabilized against carbide precipitation. In higher temperatures the carbon combines with the titanium to form a harmless titanium carbide leaving the chrome to maintain full corrosion resistance. 321 is basically 304 modified by adding titanium in an amount at least 5 times the carbon plus nitrogen contents.

347 – 347 is a columbium/tantalum stabilized austenitic ss. Similar to 321, it has good intergranular-corrosion compared to typical 18-8 type alloys. It is widely used in aircraft exhausts, expansion joints and in high temperature chemical processing. It is resistant to atmospheric conditions and should be considered for applications requiring intermittent heating between 800F and 1650f.

410 – 410 is a hardenable martensitic alloy that is designed for high stress parts that require high ductility as well as good corrosion resistance. Working temps up to 1200F are acceptable. 410 is widely used in blades and buckets, steam turbines, turbine wheels, valves, aircraft parts and pumps and pump shafts.

416 – Grade 416 has the highest machinability of any stainless steel, at about 85% of that of a free-machining carbon steel. As for most other free-machining stainless steels the improvement in machinability is achieved by addition of sulphur which forms manganese sulphide inclusions; this sulphur addition also lowers the corrosion resistance, weldability and formability to below that of its non-free machining equivalent Grade 410. Grade 416 is sometimes used in the unhardened or hardened and highly tempered condition because of its low cost and ready machinability.

630 – 17-4 Precipitation Hardening also known as Type 630 is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and a moderate level of corrosion resistance. High strength is maintained to approximately 600 degrees Fahrenheit (316 degrees Celsius).

17-4 PH – A precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance. The grade should not be used at temperatures above 572°F (300°C) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to Alloy 304 or 430.

15-5 PH – A martensitic precipitation hardened steel – it offers high strength combined with excellent corrosion resistance. It is similar to 17-4ph in properties, it is more chemically balanced to reduce ferrite which enhances its transverse properties. It is used when high transverse strength is required – valve parts, paper mills, aircraft, power generation chemical processing , nuclear and space craft.

904L – 904L is a non-stabilized low carbon high alloy austenitic stainless steel. The addition of copper to this grade gives it greatly improved resistance to strong reducing acids, particularly sulphuric acid. It is also highly resistant to chloride attack - both pitting / crevice corrosion and stress corrosion cracking. This grade is nonmagnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures. 904L does have very substantial contents of the high cost ingredients nickel and molybdenum. Many of the applications in which this grade has previously performed well can now be fulfilled at lower cost by duplex stainless steel 2205 (S31803 or S32205), so it is used less commonly than in the past.

2205 Duplex – 2205 duplex has a microstructure that contains both austenitic and ferritic phases and excellent combination of strength and corrosion resistance. In the annealed condition, it has twice the strength of a typical austenitic stainless. Used in oil and pas, pumps and pump parts, valves and chemical and paper manufacturing.

2507 – Commonly known as Super Duplex 2507®, is very similar to UNS S31803 Duplex. The difference between the two is the contents of chromium and nitrogen are higher in the Super Duplex Grade which in turn creates higher corrosion resistance as well as a longer lifespan. Super Duplex is composed of between 24% to 26% chromium, 6% to 8% nickel, 3% molybdenum, and 1.2% manganese, with the balance being iron. Also found in Super Duplex are trace amounts of carbon, phosphorus, sulfur, silicon, nitrogen, and copper. Benefits include: good weldability and workability, a high level of thermal conductivity and low coefficient of thermal expansion, high resistance to corrosion, fatigue, high resistance to pitting and crevice corrosion, high resistance to stress corrosion cracking (especially chloride stress corrosion cracking), high energy absorption, high strength, and erosion. Essentially, the Duplex alloys are a compromise; possessing some of the ferritic stress corrosion cracking resistance and much of the superior formability of the common austenitic stainless alloys, more cost effectively than the high nickel alloys. 

Product Image

ASTM A213,ASTM A312,ASTM A789,ASTM A790,DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube
ASTM A213,ASTM A312,ASTM A789,ASTM A790,DIN 17458,EN10216-5,EN 10297-2 Seamless SS Tube

EN 10216-5,EN 10297-2 Seamless Stainless Steel Pipe
EN 10216-5,EN 10297-2 Seamless Stainless Steel Pipe







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