ASTM A358 TP304L EFW Pipes,ASTM A358 TP304L CL1 STAINLESS STEEL Welded Pipes
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ASTM A358 GRADE 304 EFW PIPES, ASTM A358 TP304 EFW WELDED PIPES, ASTM A358 GRADE 304 ELECTRIC FUSION WELDED PIPES, ASTM A358 GRADE 304 EFW PIPES IN CLASS 1, 2, 3, 4, 5.
ASTM A358 Grade 304 EFW Welded Pipes in Class 1 / 2 / 3 / 4 / 5; Heavy Wall Welded Large Diameter Pipes in Corrosion Resistant Alloys suitable for Cryogenic Service.
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.
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.
ASTM A358 TP 304/TP304L STAINLESS STEEL EFW PIPES CHEMICAL COMPOSITION
Typical compositional ranges for grade 304 stainless steels Pipes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304 | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||
| 304L | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
| 304H | min. | 0.04 | – | – | -0.045 | – | 18.0 | – | 8.0 | – |
| max. | 0.10 | 2.0 | 0.75 | 0.030 | 20.0 | 10.5 | ||||
ASTM A358 Grade 304 Stainless Steel EFW Pipes Mechanical Properties
Mechanical Properties of 304 grade stainless steel
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
| 304H also has a requirement for a grain size of ASTM No 7 or coarser. | |||||
How to order the ASTM A358 TP304/TP304L EFW PIPESS
Example#1,
ASTM A358 TP304L Pipes Stainless Steel, 32 Inch, Schedule 80S, Bevelled End, length 6M.
