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[China]
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Address: H.Q.803, No.18 Baosheng Road, Songjiang, Shanghai, China
Contact name:Will Ma
Spezilla Tube Co., Ltd. (Shanghai) |
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ASTM B444 Alloy 625 / UNS N06625 Nickel Alloy SMLS Tube WNR 2.4856
Tubing
Alloy 718 (UNS N07718, W Nr 2.4668) is an austenitic nickel-based superalloy. Alloy 718 exhibits excellent high yield tensile and creep-rupture properties at temperatures up to 1300ºF and oxidation resistance to 1800ºF. Alloy 718 is used in applications that require high strength such as parts for jet engines and high speed airframe parts such as wheels, buckets, spacers and high temperature bolts and fasteners.
Inconel 718 is a nickel-chromium-molybdenum alloy designed to
resist a wide range of severely corrosive environments, pitting and
crevice corrosion. This nickel steel alloy also displays
exceptionally high yield, tensile, and creep-rupture properties at
high temperatures. This nickel alloy is used from cryogenic
temperatures up to long term service at 1200° F. One of the
distinguishing features of Inconel 718’s composition is the
addition of niobium to permit age hardening which allows annealing
and welding without spontaneous hardening during heating and
cooling. The addition of niobium acts with the molybdenum to
stiffen the alloy’s matrix and provide high strength without a
strengthening heat treatment. Other popular nickel-chromium alloys
are age hardened through the addition of aluminum and titanium.
This nickel steel alloy is readily fabricated and may be welded in
either the annealed or precipitation (age) hardened condition. This
superalloy is used in a variety of industries such as
aerospace, chemical processing, marine engineering,
pollution-control equipment, and nuclear reactors.
Thus precipitation-hardening treatments are not required. This
combination of elements also is responsible for superior resistance
to a wide range of corrosive environments of unusual severity as
well as to high-temperature effects such as oxidation and
carburization.
| Item Code: | Alloy718 |
| Tube OD.: | 25.40MM |
| Wall: | 2.11MM |
| Length: | 6000MM |
| Material: | C276, UNS N10276 |
| Standard: | ASTM B626 |
| Finish: | AP / Annealed & Pickled |
| Type: | Seamless Cold Drawn |
| Certification: | ISO9001:2015 |
| Mill Test Certificate: | EN10204 3.1 / 3.2 |
| Packing: | Sleeved, Wooden Boxed |
Technical Data
Mechanical Properties
| Temper | Annealed | |
| Tensile Rm | 100 | ksi (min) |
| Tensile Rm | 690 | MPa (min) |
| R.p. 0.2% Yield | 41 | ksi (min) |
| R.p. 0.2% Yield | 290 | MPa (min) |
| Elongation (2” or 4D gl) | 40 | % (min) |
| Specific Heat (0-100°C) | 427 | J.kg-1.°K-1 |
| Thermal Conductivity | 9.4 | W.m -1.°K-1 |
| Thermal Expansion | 11.2 | μm/μm/°C |
| Modulus Elasticity | 221 | GPa |
| Electrical Resistivity | 1.30 | μohm/cm |
| Density | 8.89 | g/cm3 |
Chemical Composition (% by weight)
| Element | Min | Max |
| C | - | 0.02 |
| Si | - | 0.08 |
| Mn | - | 1 |
| P | - | 0.03 |
| S | - | 0.3 |
| Co | - | 2.5 |
| Fe | 4 | 7 |
| Cr | 14.5 | 16.5 |
| Cu | 3 | 4.5 |
| Mo | 15 | 17 |
| V | - | 0.35 |
| Ni | Balance | |
Available Tube Product Forms:
Straight.
Coiled.
Seamless.
Seam welded and cold redrawn.
Seam welded, cold redrawn and annealed.
Quality Assurance:
Spezilla's welded precision stainless steel tubes are produced acc.
to the following process and inspection to assure our quality:
1. Chemical Composition Analysis Test With 100% PMI.
2. Solution Annealing / Bright Annealed.
3. 100% Hydrostatic Test and 100% Eddy Current Test
4. Mechanical Tests includes Tension Test, Flattening Test, Flaring
Test, Hardness Test.
5. Impact Test subject to Standard request.
6. Grain Size Test and Intergranular Corrosion Test.
7. Visual Test and Endoscope Test for Surface Quality Test
Typical Applications:
Pollution control
Mixed acid chemicals
Pulp and paper production
Waste treatment
Very high chloride environments
Typical Manufacturing Specifications:
ASTM B626
ASTM B622
Also individual customer specifications.
