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Super Duplex Steel Seamless Pipe ASTM A790 UNS S32750 Acid Resistant

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Super Duplex Steel Seamless Pipe ASTM A790 UNS S32750 Acid Resistant

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Brand Name YUHONG
Model Number ASTM A790 UNS S32750
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin China
Minimum Order Quantity 1000KGS
Price Negotiable
Payment Terms T/T,L/C
Supply Ability 1000 tons per month
Delivery Time Depends on quantity
Packaging Details Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Specification ASTM A790, ASME SA790, EN10216-5 , GOST9941-91, JIS 3459, DIN17458
Grade S32750
Type Seamless
Surface Pickled and Annealed, Polished, Bright Annealed
Non Destructive Test Eddy Current Test -ASTM E426, Hystostatic Test-ASTM A999, Ultrsonic Test -ASTM E213
Size Standard ASTM B16.10 & B16.19 & Customized
Detailed Product Description

Super Duplex Steel Seamless Pipe ASTM A790 UNS S32750 Acid Resistant

 

ASTM A790 S32750 Seamless Pipe is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and 7% nickel.

 

(UNS S32750) Duplex stainless steel has strong strength and corrosion resistance, and is mainly used in chemical processing, petrochemical and subsea equipment. It has strong resistance to chloride corrosion, high thermal conductivity and low thermal expansion coefficient. Higher chromium, molybdenum and nitrogen content make it has a high ability to resist pitting corrosion, crevice corrosion and general corrosion.

 

Its impact strength is also very high. 2507 alloy is not suitable for use in a temperature environment higher than 570 ° C. Its toughness will decrease if it is in such an environment for a long time.

 

 

Chemical Composition of S32750

 

ElementContent (%)
Chromium, Cr24 – 26
Nickel, Ni6 – 8
Molybdenum, Mo3 – 5
Manganese, Mn1.20 max
Silicon, Si0.80 max
Copper, Cu0.50 max
Nitrogen, N0.24 – 0.32
Phosphorous, P0.035 max
Carbon, C0.030 max
Sulfur, S0.020 max
Iron, FeBalance

 

PMI:

 

 

Workmanship, Finish, and Appearance


The finished pipes shall be reasonably straight and shall have a workmanlike finish. Imperfections may be removed by grinding, provided the wall thicknesses are not decreased to less than that permitted, in the Permissible Variations in Wall Thickness Section of Specification A999/
A999M.

 

Ordering Information


Orders for material under this specification should include the following, as required, to describe the desired material adequately:


1 Quantity (feet, [metres], or number of lengths),
2 Name of material (ferritic/austenitic steel pipe),
3 Process (seamless or welded),
4 Grade (see Table 1),
5 Size (NPS designator or outside diameter and schedule number of average wall thickness),
6 Length (specific or random)

 

Duplex S32750 Pipe Weight Chart

 

NPSOutside diameterWall thickness (WT) weightsweight
InchMMInchMMSchedulekg / MLb /feer
1/20.840210.1092.76940 STD1.2680.851
1 1/41.660420.1403.55640 STD3.3852.273
   0.1473.73480 STD1.6211.088
   0.1543.91280 STD2.1951.474
11.315330.1333.37840 STD2.5011.679
3/41.050270.1132.87040 STD1.6841.131
   0.1794.54780 STD3.3252.172
   0.1914.85180 STD4.4642.997
1 1/21.900480.1453.68340 STD4.0482.718
   0.2005.08080 STD5.4093.361
22.375600.1543.91240 STD5.4413.653
   0.2185.53780 STD7.4805.022
2 1/22.875730.2035.51640 STD8.6295.793
   0.2767.01080 STD11.4117.661
33.500890.2165.48640 STD11.2847.576
44.5001140.2376.020 16.07310.790
   0.3378.560 22.31814.983
66.6251680.1884.775 19.25212.924
   0.2035.516 20.73913.923
   0.2195.563 22.31814.983
   0.2506.350 25.35417.021
   0.3007.62080 STD15.27210.253
   0.2807.11240 STD58.26318.974
   0.3127.925 31.33421.036
   0.3759.525 37.28525.031
   0.43210.97380 XHY42.56128.573
   0.50012.700 48.71932.708
88.6252190.1884.775 25.23316.940
   0.2195.563 29.28619.661
   0.2506.3502033.30822.361
   0.2777.0363036.78624.696
   0.3228.1794042.35228.554
   0.3759.525 49.21633.041
   0.40610.3126053.08535.638
   0.2035.156 27.19818.259
   0.50012.70080 XHY64.62743.388
1010.7502730.1884.775 31.58821.207
   0.2195.563 36.68924.631
   0.2506.3502041.75928.035
   0.3077.7983051.00234.240
   0.3448.738 56.94638.231
   0.3659.27140 STD63.30140.483
   0.43811.125 71.85248.238
   0.50012.70060 XHY81.53054.735
   0.59415.0888095.96964.429
1212.7503240.1884.775 37.57025.222
   0.2195.563 43.65729.309
   0.2506.350 49.71333.375
   0.2817.137 55.73937.420
   0.3127.925 61.73541.445
   0.3759.525 73.82449.562
   0.40610.312 79.72753.525
   0.50012.700 97.43865.415
   0.56214.275 108.96673.154
1414.0003560.1884.775 41.30827.732
   0.2195.563 48.01232.233
   0.2506.3502054.68536.713
   0.2817.137 61.32741.172
   0.3127.925 67.93945.611
   0.3759.525STD81.28154.568
   0.43811.1254094.49863.441
   0.50012.700XHY107.38172.090
   0.62515.875 132.98389.278
16”16.0004060.1884.775 47.29021.748
   0.2195.563 54.98036.910
   0.2506.3501062.63942.053
   0.2817.137 70.26847.174
   0.3127.9252077.86652.275
   0.3448.738 85.67757.519
   0.3759.52530 STD93.21362.578
   0.43811.125 108.43372.797
   0.50012.70040 XHY123.28982.770
1818.0004570.2195.563 61.94841.588
   0.2506.350 70.59347.393
   0.2817.137 79.20853.176
   0.3127.9252087.79258.939
   0.3759.525STD105.14470.588
   0.43811.12530122.36982.152
   0.50012.700XHY139.19893.450
   0.56214.27540155.904104.666
   0.62515.875 172.754115.978
2020.0005080.2506.350 78.54752.733
   0.2827.163 88.45859.386
   0.3127.925 97.71965.604
   0.3759.52520 STD117.07578.598
   0.43811.125 136.30591.508
   0.50012.70030 XHY155.106104.130
   0.59415.08840183.378123.110
   0.62515.875 192.640129.328
   0.68817.475 211.368141.901
2424.0006100.2506.350 94.45663.413
   0.2817.137 106.02971.183
   0.3127.925 117.57318.932
   0.3759.52520 STD140.93864.618
   0.43811.125 164.176110.219
   0.50012.700XHY186.923125.490
   0.62515.875 232.410156.028
   0.68817.47540255.148171.293
   0.75019.050 277.401186.233
3030.0007620.2506.350 118.31879.433
   0.2817.137 132.85189.189
   0.3127.92510147.35398.925
   0.3759.525STD176.731118.648
   0.43811.125 205.983138.286
   0.50012.70020 XHY234.647157.530
   0.62515.87530292.066196.078
   0.68817.475 320.817215.380
   0.75019.050 348.988234.293
3636.0009140.2506.350 142.18095.453
   0.2817.137 159.672107.196
   0.3127.92510177.133118.918
   0.3759.525STD215.525142.678
   0.43811.125 247.790166.353
   0.50012.70020 XHY282.372198.570
   0.62515.875 351.723236.128
   0.68817.475 386.487259.467
   0.75019.050 420.576282.353
4242.00010670.3127.925 206.914138.911
   0.3759.525STD248.319166.708
   0.50012.700XHY33.097221.610
   0.75019.050 492.163330.413
4848.00012190.3759.525STD284.112190.738
   0.43811.125 331.404222.487
   0.50012.700XHY377.822253.650
   0.75019.050 563.750378.473
   0.87522.225 655.969440.383

 

 

 

Super Duplex 2507 Pipe Equivalent Material

 

AlloyUNS DesignationWerkstoff NR.SpecificationsAFNORGradeDINENSS
2507S327501.4410A/SA789,A/SA790Z3 CN 25.06 AzF53X 2 Cr Ni MoN 25.7.41.44102328

 

Duplex Stainless Steel Features

 

Duplex stainless steels have Austenitic and Ferritic stainless steel microstructure, and possess properties in two groups stainless steel, however, there are different.

 

Versus Austenitic

  • Higher yield strength
  • Greater corrosion resistance
  • Stress corrosion cracking resistance
  • Not common, used temperate under 250 C.
  • Fabricability not good as Austenitic
  • Strictly control heat treatment and welding process
  • Price stability

Versus Ferritic

  • Good toughness than Ferric, not hard
  • Greater corrosion
  • Fabricability is better
  • Better weldability
  • Wide usage than Ferritic
  • Higher price

 

APPLICATIONS:

  • Paper & Pulp Companies
  • High Pressure Applications
  • Oil and Gas Industry
  • Chemical Refinery
  • Pipeline
  • High Temperature Application
  • Water Pipe Line
  • Nuclear Power Plants
  • Food Processing and Dairy Industries
  • Boiler & Heat Exchangers

 

 
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