Alloy28 Uns N08028 1.4563 Nickel Alloy Tube/Pipe

China Alloy28 Uns N08028 1.4563 Nickel Alloy Tube/Pipe, Find details about China N08028, Alloy28 from Alloy28 Uns N08028 1.4563 Nickel Alloy Tube/Pipe

Transport Package
in Bundles
HS Code
730441900
Transport Package
in Bundles
HS Code
730441900
Tubing Alloy28 Material (UNS N08028) corrosion resistant alloy

28 is a high-alloy multi-purpose austenitic stainless steel for service in highly corrosive conditions. The grade is characterized by:
  
Very high corrosion resistance in strong acids
   Very good resistance to stress corrosion cracking (SCC) and intergranular corrosion in various environments
  - - High resistance to pitting and crevice corrosion - Good weldability
STANDARDS:
 - UNS: N08028
 - ISO: 4563-080-28-I
 - EN Number: 1.4563
 - EN Name: X 1 NiCrMoCu 31-27-4
 - W.Nr.: 1.4563
 - DIN: X 1 NiCrMoCuN 31 27 4
 - SS: 2584
- AFNOR: Z1NCDU31-27-03
Product standards
 Seamless tube and pipe:
 ASTM B 668, EN 10216-5, SEW 400 (Feb 1991), SS 14 25 84, NFA 49-217
Plate, sheet and strip:
ASTM B 709, EN 10088-2, SS 14 25 84 Bar steel: EN 10088-3, EN 10272, SS 14 25 84
Fittings: ASTM A 403 (chemical composition and mechanical properties according to ASTM B668)

Approvals

  • Approved by the American Society of Mechanical Engineers (ASME) for use in accordance with ASME Boiler and Pressure Vessel Code, section III, section I (Code Case 1325-18) and section VIII, division 1.
  • VdTÜV-Werkstoffblatt 483 (Austenitischer Walz- und Schmiedestahl)
  • NACE MR 0103 (Materials Resistant to Sulfide Stress Cracking in Corrosive Petroleum Refining Environments)
  • NACE MR0175/ISO 15156 (sulfide stress cracking resistant material for oil field equipment)
  • Applications

    Due to its outstanding corrosion properties, Sanicro® 28 can be used in the most diverse environments. Listed below are a few examples of applications for which this alloy is particularly suitable.

    Phosphoric acid

    Today, Sanicro® 28 is the most widely used metallic material for evaporator tubes in the manufacture of phosphoric acid by the "wet " method. Several units have now been in service for more than 10 years. The graphite heat exchangers, replaced by Sanicro® 28, often had repeated problems with broken tubes and loss of production.

    Sulphuric acid

    Sanicro® 28 is a suitable material for piping and heat exchangers, particularly at concentrations of between 40 and 70% of deaerated acid and over 85%. Sanicro® 28 has approximately the same resistance as Alloy C in concentrated acid (98% H2SO4).

    Oil and gas

    Sanicro® 28 is used for production tubing, casing and liners in deep, sour gas wells. The material is also recommended for oil wells with a corrosive environment. For these purposes, tubes are supplied cold rolled with high strength. In the solution annealed condition, Sanicro® 28 is also used as piping for transporting of corrosive oil and gas and for heat exchangers in treatment facilities. Sanicro® 28 wirelines are used for lowering tools and controlling instruments in deep oil and gas wells.

    Fluoride-bearing media

    Fluoride-bearing off-gases can form during the manufacture of phosphoric acid and mixed fertilizers. These off-gases must be disposed of for environmental reasons. Sanicro® 28 is ideal for this purpose. Tests have shown it to be preferable to higher alloyed CrNiMo grades for the recovery of fluoride-bearing gypsum.

    Nuclear power plants

    Due to its high resistance to SCC, pitting and crevice corrosion, Sanicro® 28 has been selected for heat exchangers in nuclear power plants.

    Seawater and chloride-bearing cooling water

    Its high resistance to pitting and crevice corrosion makes Sanicro® 28 a very suitable material for seawater-carrying piping and seawater-cooled heat exchangers. This is confirmed by practical experience.

    Sanicro® 28 has replaced nickel alloys, CuNi, bimetallic tubes and coated carbon steel tubes, which failed due to corrosion. The performance of Sanicro® 28 has been excellent.

    In seawater-cooled heat exchangers and heat exchangers that work with chloride-bearing cooling water, Sanicro® 28 offers high corrosion resistance to both the water and the cooled medium.

    When a seawater-cooled plant is shut down, there is no need to drain the piping system or flush with fresh water, provided that the shutdown period is shorter than one month and the water temperature is lower than 30°C (85°F).

    The duplex stainless steel Sandvik SAF 2507® is more resistant than Sanicro® 28 in sea water.



Chemical Composition Properties
Maximum % mass fraction or range of chemical composition shall be according to ISO 13680 PSL-2 as per bellow table.

 
CCr.NiFeMnSiMoCuPS
0.0326 to 2830 to 32.5Bal.2.513 to 40.6 to 1.40.030.03

Mechanical Properties:
 

Material and Grade
Delivery ConditionYield Strength (Mpa)
Rp0.2
Tensile Strength (Mpa)
Rm
Elongation  e (%)Mean Hardness number
(HRC)

ALLOY 28 (UNS8028)
CHMinMaxMinMinMax
7589657931233
 

Corrosion resistance

General corrosion

Sanicro® 28 was originally developed for use in the manufacture of phosphoric acid, especially for heat exchangers in the concentration unit, where corrosive conditions are at their worst.

Phosphoric acid, manufactured by the "wet" method, contains varying concentrations of impurities derived from the raw material, the phosphate rock. The most dangerous of these impurities are chlorides, Cl - , and fluorides in free form, F - . Laboratory tests carried out in wet process phosphoric acid have shown that Sanicro® 28 is far more resistant to impurities of this kind than other high alloy materials. Figure 1 shows the corrosion rate in contaminated phosphoric acid at different chloride concentrations.

Temperature is another factor that has a great influence on corrosion. See figure 2.

Laboratory tests at 200°C (390°F) in contaminated 95% super phosphoric acid gave the following corrosion rates after 20 days: Sanicro® 28, 0.03 mm/year (1.2 mpy); Alloy 904L, 0.10 mm/year (4.0 mpy); UNS N08020, 0.23 mm/year (9.2 mpy); Alloy G, 0.03 mm/year (1.2 mpy).
Table 1 Chemical compositions of materials tested

MaterialChemicalCompositionNominal, %     
 CCrNiMoCuWCoOthers
Sanicro 280.0227313.51.0    -    -     -
Alloy 904L0.0220254.51.5    -    -      -
UNS N080200.0720342.53.3    -    -      Nb
Alloy 8250.0521.54232.3    -    -      Ti
Alloy G0.0322456.52   1.0  2.5       Nb
Alloy C0.0815.55416    -   4  2.5       -
         -    -  
     Detailed content Reference:https://www.home.sandvik/en/
seamless pipeRound pipeOut diameter:1/8"-24"(6mm-630mm).
Wall thickness:ANSI 5S-160S (0.9mm-100mm)
Square pipe 20x20x-200x200:thickness2-50mm
rectangular pipe 10x20-150x100,thickness:2-50mm
Hex pipeOut hex or Round
Inside bore or hex
Flat to flat 16-70mm,
thickness:3-10mm
With drawing
Oval tube With drawing
Welded typeRound pipeOut diameter:OD6-2500MM
Wall thickness:Thickness:1-50mm
Square pipe 10x10-200x200,thickness1-3mm
Rectangular pipe 10x20-150x100,thickness:1-3mm
Oval tube As drawings
Manufacture Standard:ASTMA213/312/269/511/789/790,
GOST9940/9941,DIN17456/17458/EN10206/17440
JIS3459/3463,GB13296/14976/9948/5310/8142/8143
stainless steelTP304,304L,304H,304N,316,316L,316Ti,317L,310S,321,321H,347H,S31803, S32750,347,330,825,904L,
12X18H9,08X18H10,03X18H11,08X18H10T,20X25H20C2,08X17H13M2T,08X18H12E
1.4301, 1.4306, 1.4401, 1.4404, 1.4435, 1.4541, 1.4571, 1.4563, 1.4462, 1.4845,
SUS304, SUS304L, SUS316, SUS316L, SUS321, SUS310S etc.
Nickel alloy

Hastelloy: UNS N10001, N10665, N10675, N06455, N06022, N10276, N06200, N06035, N06030, N06635, N10003, N06002, R30188, N06230, R30556 

Inconel: UNS N06600, N06601, N06617, N06625, N07718, N07750, N08800, N08810, N08811, N08825, N09925, N08926

Monel: UNS N04400, N05500

Precipitation-hardening Steels: 254SMO/S31254, 17-4PH, 17-7PH, 15-7PH

Nickel: N4/UNS N02201, N6/UNS N02200

Titanium and titanium alloyGR1,GR2,GR5,GR7,GR9,GR12
Process methods:cold drawn, cold rolling,welded
Surface & Delivery condition:Solution annealed and pickled, grey white (polished),with plain ends/bevel edges ends,Hairline
Length:Max25 meters
Packing:in seaworthy wooden cases or in bundles
Min order quantity:0.5 ton each size for common steel.
Delivery date:TP304,TP310S,TP316L pipes usually have stock,others Min. 10 days
Certificates:ISO9001:2000 quality system and Mill test Certificate supplied
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Alloy28 Uns N08028 1.4563 Nickel Alloy Tube/Pipe