Home Companies OK PIPE FITTING CO.,LTD

ASTM B/ASME SB 338 Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers an

Active Member

Contact Us

[China]

Contact name:Eva

OK PIPE FITTING CO.,LTD

ASTM B/ASME SB 338 Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers an

Country/Region china
City & Province cangzhou hebei
Categories Other Measuring & Analysing Instruments

Product Details

Seamless Austenitic Stainless Steel Tubes  for High-Temperature Service   Grades TP304H, TP347H, TP321H
 
We supply ex mill and ex stock: seamless austenitic stainless steel pipes in TP304H,  TP347H and TP321H
 
Main use of the high alloy material is for boiler tubes in power stations and refineries
 
 
 
Special properties
❚ high creep rupture strength above 500°C
❚ excellent resistance to high-temperature corrosion
❚ excellent processing characteristics
 
Stock standard: ASTM/ASME A/SA 312/376, EN10216-5, TC1, IC-Test according to ASTM A262 Practice E, NACE MR0175; mill
inspection certificate EN DIN 10204/3.1
 
 
Grades: TP304/304H (1.4301, 1.4948); TP321/321H (1.4541, 1.4878); TP347/347H (1.4550, 1.4912)
Please ask us also for TP316 with C > 0,04 %.
 
Supplementary requirement (upon request): TP347/347H with stabilizing heat treatment at 900°C for 30 minutes.
 

The term pipe covers a specific range of sizes laid down by ANSI specifications. Any sizes not covered by these specifications are tube. Stainless Steel Pipe dimensions determined by ASME B36.19 covering the outside diameter and the Schedule wall thickness. Note that stainless wall thicknesses to ANSI B36.19 all have an ‘S’ suffix. Sizes without an ‘S’ suffix are to ANSI B36.10 which is intended for carbon steel pipes.

 

Seamless and Welded

 

ASTM A312: Seamless and straight-seam welded austenitic pipe intended for high temperature and general corrosive service. Filler metal not permitted during welding.

 

ASTM A358: Electric fusion welded austenitic pipe for corrosive and/or high temperature service. Typically only pipe up to 8 inch is produced to this specifi cation.

 

Addition of fi ller metal is permitted during welding.

 

ASTM A790: Seamless and straight-seam welded ferritic/austenitic (duplex) pipe intended for general corrosive service, with a particular emphasis on resistance to stress corrosion cracking.

 

ASTM A409: Straight-seam or spiral-seam electric fusion welded large diameter austenitic light-wall pipe in sizes 14˝ to 30˝ with walls Sch 5S and Sch 10S for corrosive and/or high temperature service.

 

ASTM A376: Seamless austenitic pipe for high temperature applications.

 

ASTM A813: Single-seam, single- or double- welded austenitic pipe for high temperature and general corrosive applications.

 

ASTM A814: Cold-worked welded austenitic pipe for high temperature and general corrosive service.

 

Note: Welded pipes manufactured to ASTM A312, A790 and A813 must be produced by an automatic process with NO addition of filler metal during the welding operation.

 

Welded pipe specifications

 

Usually it will be to ASTM A312. If it is to ASTM A358 then there are various Classes available as shown below. The Class Number dictates how the pipe is welded and what non-destructive tests:

 

 Class 1: Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

 

 Class 2: Pipe shall be double welded by processes employing filler metal in all passes. No-radiography is required.

 

 Class 3: Pipe shall be welded in one pass by processes employing filler metal and shall be completely radiographed.

 

 Class 4: Same as Class 3 except that the welding process exposed to the inside pipe surface may be made without the addition of filler metal.

 

 Class 5: Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.

 

Markings on pipe

 

The full identifi cation of the pipe should be continuously marked down its whole length, including:

 

 Nominal Pipe Size (Nominal Bore)

 

 Schedule (Wall Thickness)

 

 Specifi cation

 

 Grade

 

 Method of Manufacture (Seamless or Welded)

 

 Heat Number

 

 Manufacturer’s Name or Symbol

Hot Products

Seamless Austenitic Stainless Steel Tubes for High-Temperature Service Grades TP304H, TP347H, TP321H ...
Seamless Austenitic Stainless Steel Tubes for High-Temperature Service Grades TP304H, TP347H, TP321H ...
Seamless Austenitic Stainless Steel Tubes for High-Temperature Service Grades TP304H, TP347H, TP321H ...
Seamless Austenitic Stainless Steel Tubes for High-Temperature Service Grades TP304H, TP347H, TP321H ...
Seamless Austenitic Stainless Steel Tubes for High-Temperature Service Grades TP304H, TP347H, TP321H ...
Seamless Austenitic Stainless Steel Tubes for High-Temperature Service Grades TP304H, TP347H, TP321H ...