ASTM A358 TP321H Weled Pipes,ASME SA358 GRADE 321H EFW PIPES

1. Material Grade: TP304 , TP304L , TP304H , TP316 , TP316L , TP316Ti , TP309S , TP310S , TP321 , TP321H , TP347 , TP347H , etc

2. Outer Diameter: 10.3mm-1219mm

Wall Thickness : 1.24mm-59.54mm

3. Length: Normally fixed length 6m , can as per customer’s requirement

4. Standard: ASTM A312 ; ASTM A358 ; ASTM A789 ; ASTM A790 ect .

5. Process Method: ERW , EFW etc

ASTM A358 / ASME SA358 STAINLESS STEEL EFW PIPES

Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications

ASTM A358 Stainless Steel EFW Pipes specification covers electric-fusion-welded austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications.
The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
This specification covers the grades of alloy and stainless steel listed in Table 1. The selection of the proper grade and requirements for heat treatment shall be at the discretion of the purchaser, dependent on the service conditions to be encountered.

Five classes of pipe are covered as follows:

ASTM A358 Class 1 – Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 Class 2 – Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.

ASTM A358 Class 3 – Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 Class 4 – Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).

ASTM A358 Class 5 – Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.

Supplementary requirements covering provisions ranging from additional testing to formalized procedures for manufacturing practice are provided. Supplementary Requirements S1 through S6 are included as options to be specified when desired.

The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

321H stainless steel (uns nos32109 )

ASTM A358 GRADE 321H STAINLESS STEEL EFW PIPES CHEMICAL COMPOSITION

Typical compositional ranges for grade 321H stainless steels Pipes

ASTM A358 GRADE 321H STAINLESS STEEL EFW PIPES MECHANICAL PROPERTIES

Mechanical properties of 321H grade stainless steel

ASTM A358 GRADE 321H STAINLESS STEEL EFW PIPES PHYSICAL PROPERTIES

Physical properties of 321H grade stainless steel in the annealed condition

How to order the ASTM A358 TP321H Pipes?

Example#1,

ASTM A358 TP321H Pipes Seamless Stainless Steel, 10 Inch, Schedule 40S, Bevelled End, length 6M.