ASTM A249 Welded Austenitic 1/4 Stainless Steel Tube for Boilers / Heat Exchanger

ASTM A249 Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat Exchanger, Condenser Tubes

Size:

OD: 1/8 in (3.2mm) to 5 in (127mm)

WT: 0.015 to 0.320 in (0.4 to 8.1mm)

Grade:

TP304H, TP309H, TP310H, TP316H, TP312H, TP347H and TP348H.

TP304, TP309S, TP310S, TP310Cb, TP316, TP321, TP347, TP348

For high-temperature service such as for superheaters and reheaters

Application:

Boiler, Superheater, Heat Exchanger, Condensor Tubes

Austenitic stainless steel, temperature service applications, high temperature applications

Manufacture:

The tubes are made from flat-rolled steel by an automatic welding process with no addition of filler metal.

Subsequent to welding and prior to final heat treatment, the tubes are cold worked on weld and base metal or in weld metal

Test and inspection:

Tension test

Flattening test

Flange test

Reverse-Bend test

Hardness test

Hydrostatic or Nondestructive Electric Test

Grain size

SUPPLEMENTARY REQUIREMENTS

S1 - Stress-Relieved Annealed Tubes

S2 - Minimum Wall Tubes

S3- Air Underwater Pressure Test

S4 - Stabilizing Heat Treatment

S5 - Unstraightened Tubes

S6 - Intergranular Corrosion Test

S7 - Weld Decay Test

S8 - Special Applications

S9 - Additional Tesing of Welding Tubing per ASME Request

Referenced Documents:

ASTM Standards:

ASTM A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

ASTM A480/ A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

ASTM A1016/ A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes

E 112 Test Methods for Determining Average Grain Size

E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing

E273 Practice for Ultrasonic Examination of Weld Zone of Welded Pipe and Tubing

E527 Practice for Numbering Metals and Alloys (UNS)

Who We are ？

-------A professional steel pipes materials inventor, manufacturer and solution provider
Torich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes，DOM Steel Tubes, Seamless & Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great engineering experience in steel pipe industry for more than 20 years, which are in great command of production technology for Cold Drawing and Cold Rolling. So we have strong technician team and manufacturing capability.

What products we do？

------- Invent and produce various Precision Steel Pipes

Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes

Bearing Steel Tubes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes

Honed Tubes

Hydraulic Cylinder Steel Tubes

Hydraulic Telescopic Cylinder Tubes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes

What TORICH do:
1. Producing Steel Tubes
2. Selling both on Domestic and International Market
3. Precisely Targeting Customers’ Requirement- Sourcing the right factory for right products for Customers

Products Application:
Oil Cylinders
Air Cylinder,
Automotive Cylinder Liners
Boilers, Pressure Vessels
Shell & Heat Exchangers
Jack Lifting
Telescopic Systems
Pneumatic Cylinders
Agricultural Machineries

Size range is:
O.D. 4-350mm,
W.T. 0.5-30mm,
Length: according to customer’s requirement and agreement

Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1, P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;

Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.

Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3, 13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube: A179,A192,A210,DIN17175,etc.

Bearing Steel Grades:
GCr15 52100 suj2 suj3 100Cr6 SKF3S SKF3S 20CrNiMo 8620H 4118H;

Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219, N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925, N08926, N010276, N06022, etc.

Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S, 253MA, 330, 904L, S31254, XM-19, etc.

Ferrite/Martensite Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439, TP446, etc.

Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.

Corporate Culture:
We focus on Quality First, Quality Traceability, and Quality Stability!
We focus on Customer First, People First, and Quality-Oriented!

Success:
First factory started in 1997, in the name of Torich , now covers 50000 square meters of factory building, with more than 100employees, and over 45 million RBM assets.
In 2008, we started the company of Torich International Limited for international business and marketing.
Welcome partners from all over the world for long term cooperation!