ASTM A249 is Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat Exchanger, and Condenser Tubes
| Material Grade |
TP304 |
TP309S |
TP316 |
TP321 |
| TP304L |
TP309H |
TP316L |
TP321H |
| TP304H |
TP310S |
TP316LN |
TP347 |
| TP304N |
TP310H |
TP317 |
TP347H |
| TP304LN |
|
TP317L |
|
| Size |
1/2''~48'' |
| Thickness |
SCH5~SCHXXS |
| End |
Beveled End,Plain End |
| Length |
As per your requirement. |
| Packing |
Export Standard packing or as per your requirements. |
Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended for high-temperature service such as for superheaters and reheaters.
ASTM A249 Stainless steel 347 tube Chemical Composition
|
Grade
|
C≤
|
Mn
|
P≤
|
S≤
|
Si≤
|
Cr
|
Ni
|
|
TP347
|
0.08
|
2
|
0.045
|
0.03
|
1
|
17.0-19.0
|
9.0-12.0
|
ASTM A249 347 Stainless steel tube Heat Treatment Requirements
1900°F [1040°C]C
ASTM A249 TP347 Stainless steel tube Tensile and Hardness Requirements
| Mechanical properties |
Tensile, min, ksi[MPa] |
Yield, min, ksi[MPa] |
Elongation, %(min) |
Hardness, HB（max） |
| TP347 |
75【515】 |
30【205】 |
35 |
B90 |
