FOB Price
Obtenir le dernier prix10 ~ 100 / Piece
|Minimum Order
Localité:
China
Prix de commande minimale:
Commande minimale:
10 Piece
Packaging Detail:
in wooden boxes
Delivery Time:
30 days
Supplying Ability:
10 Piece per Day
Payment Type:
T/T, L/C, D/P
Personne àcontacter Mr. Peter
North ZhongShan No.1 Road, Shanghai, Shanghai
ASTM A**3 T*1 is the part of ASTM A**3 Standard Specification for
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater,
Heat-Exchanger Tubes.
These different requirements provide higher creep-rupture strength
than normally achievable in similar grades without these different
requirements. ASTM A**3 T*1 tubes shall be made by the seamless
process and shall be either hot finished or cold finished, as
specified. Grade TP**7HFG shall be cold finished. Heat treatment
shall be done separately and in addition to heating for hot
forming. The ferritic alloy and ferritic stainless steels shall be
reheated. On the other hand, austenitic stainless steel tubes shall
be furnished in the heat-treated condition. Alternatively,
immediately after hot forming, while the temperature of the tubes
is not less than the minimum solution temperature, tubes may be
individually quenched in water or rapidly cooled by other means.
Tension test, hardness test, flattening test, and flaring test
shall be done to each tube. Also, each tube shall be subjected to
the nondestructive electric test or hydrostatic test.
ASTM A**3 abstract is a brief summary of the referenced standard.
It is informational only and not an official part of the standard;
the full text of the standard itself must be referred to for its
use and application. ASTM does not give any warranty express or
implied or make any representation that the contents of this
abstract are accurate, complete or up to date.
| UNS Designation | K****7 |
| Carbon | 0.*5–0.*5 |
| Manganese | 0.*0–0.*0 |
| Phosphorus | 0.**5 |
| Sulfur | 0.**5 |
| Silicon | 0.*0–1.*0 |
| Nickel | … |
| Chromium | 1.*0–1.*0 |
| Molybdenum | 0.*4–0.*5 |
| Vanadium | … |
| Boron | … |
| Niobium | … |
| Nitrogen | … |
| Aluminum | … |
| Tungsten | … |
| Other Elements | … |
| Tensile strength(min) | **5Mpa |
| Yield strength(min) | **0Mpa |
| Elongation | *0% |
| Delivery condition |
annealed |
