ASTM A276 UNS S31803

 

Suppliers of genuine ASME SA 276 UNS S32750 hex bolts and studs in Mumbai that ship products worldwide Find torque and prices here.

ASTM A276 UNS S31803

 

Table Of Content

 

ASTM A276 UNS S31803 is a material grade specification which describes hot-finished and cold-finished products made with S31803 stainless steel. The ASTM A276 UNS S31803 products are available in various shapes and sizes, and they can be customized according to the client requirements. The Duplex Steel Uns S31803 Bolt has a wide range of applications due to its high strength and excellent corrosion resisting properties. The UNS S31803 Fasteners are often found in the chemical processing plants and they are an eminent part of pressure vessels, heat exchangers, tanks, pipes, etc. The UNS S32205 Bolts material is basically a duplex stainless steel that has ferrite and austenite microstructure in equal ratio.

The chemical composition of the Super Duplex Steel uns S32760 bolt material is a super duplex stainless steel which is highly alloyed and they have high PREN used in various aggressive environments. The UNS S32750 fasteners show great resistance to localized corrosion and they can withstand stress corrosion cracking due to their high mechanical strength. In fact, the ASTM A276 Duplex Steel Uns S31803 Hex Bolts shows better corrosion resisting properties compared to the austenitic stainless steel.

The Asme Sa 479 S31803 Heavy Hex Bolt can also effectively withstand a wide range of aggressive media, including environments containing chlorine that can aggressively corrode metals. Due to its active resistance towards the chloride ion, the Duplex Steel Uns S31803 Hex Cap Screw can be found in different marine equipment. They are able to show optimum performance even if they are exposed to the sea water for a longer time period. The Uns S31803 Studs are also used in the textile industry, wherein the equipment are exposed to various corrosive environments.

As the Duplex S31803 Threaded Rod can effectively resist various chemical components, they can be ideally used in various industries. The Uns S31803 Socket Cap Screw has high weldability and machinability. It is to be noted that the corrosion rate of the uns S32760 fasteners at high temperature is lower than that of the conventional austenitic steel products.

The manufacturers also offer Zeron 100 Fasteners which is a super duplex stainless steel which is highly alloyed and used in several aggressive environments. It is an optimum choice for a wide range of industries. The UNS S32760 Fg Stud Bolts have high strength and they find application in the mining industry, chemical processing equipment, desalination plant, etc.

Manufacturers offer full customization on the Super Duplex S32760 Threaded Rod in terms of their shape, size, and dimensions. The Uns S32760 Socket Cap Screw is also available at a in high quality to give optimal results at a competitive price.

 

Duplex Steel Uns S31803 Bolt Price list
ASTM A276 UNS S31803 Description ASTM A276 UNS S31803 Price

ASTM A276 UNS S31803

US $ 1 / Piece
Duplex Steel Uns S31803 Bolt
US $ 0.3-0.6 / Piece
uns S32760 fasteners
US $ 1.28-2 / Piece
Super Duplex Steel Uns S32760 Hex Cap Screw
US $ 0.04-0.05 / Piece
Super Duplex S32760 Threaded Rod
US $ 700-1000 / Ton
Uns S32750 Socket Cap Screw US $ 0.05-0.5 / Piece
Astm A276 Super Duplex Steel UNS S32760 Hex Bolts
US $ 2 / Piece
Asme Sa 276 S32750 Heavy Hex Bolt
US $ 0.01-0.9 / Piece
Uns S31803 Studs
 US $ 0.03-0.05 / Piece

 

ASTM A276 UNS S31803 Specification
Specifications ASTM A276 / ASME SA276 , ASME SA479/ ASTM A479
Standard ASTM, DIN, BS and all other International Standards
grade ASTM A276 UNS S31803/UNS S32750/ UNS S32760
Length 3 mm - 200 mm
Machine Screws Size M1.6 to M12
ASTM A276 UNS S31803 Bolts Size M3 to M56 | 3/6" - 2" | Custom Sizes
Nuts Size M3 to M56 | 3/6" - 2" | Custom Sizes
Washers Size M3 to M56 | 3/6" - 2" | Custom Sizes
ASTM A276 UNS S31803  Types Hex Bolts, nut, studs, threaded rod, screws, washer, socket head cap screw

 

Super Duplex Steel UNS S32760 Bolts Torque Chart
Proof load (Lbs) ASTM A276 UNS S31803 Bolt Sizes Threads Per Inch Clamp load (Lbs) torqueTightening (Ft Lbs)
Galv Galv+Waxed Plain
3,350 1/4 20 2,513 13 5 10
5,500 5/16 18 4,125 27 11 21
8,150 3/8 16 6,113 48 19 38
11,150 7/16 14 8,363 76 30 61
14,900 1/2 13 11,175 116 47 93
19,100 9/16 12 14,325 168 67 134
23,750 5/8 11 17,813 232 93 186
35,050 3/4 10 26,288 411 164 329
48,500 7/8 9 36,375 663 265 530
63,650 1 8 47,738 995 398 796
80,100 11/8 7 60,075 1,408 563 1,126
82,934 11/8 8 62,201 1,458 583 1,166
101,750 11/4 7 76,313 1,987 795 1,590
105,006 11/4 8 78,754 2,051 820 1,641
121,300 13/8 6 90,975 2,606 1,042 2,085
129,492 13/8 8 97,119 2,782 1,113 2,226
147,550 11/2 6 110,663 3,458 1,383 2,767
156,687 11/2 8 117,515 3,672 1,469 2,938
199,500 13/4 5 149,625 5,455 2,182 4,364
218,400 13/4 8 163,800 - - 4,778
262,500 2 41/2 196,875 8,203 3,281 6,563
290,850 2 8 218,138 - - 7,271
341,250 21/4 41/2 255,938 11,997 4,799 9,598
373,801 21/4 8 280,351 - - 10,513
420,000 21/2 4 315,000 16,406 6,563 13,125
466,200 21/2 8 349,650 - - 14,569
468,500 23/4 4 351,263 20,124 8,050 16,100
515,851 23/4 8 386,888 - - 17,732
567,150 3 4 425,363 26,585 10,634 21,268
618,451 3 8 463,838 - - 23,192
674,500 31/4 4 505,875 34,252 13,701 27,402
730,550 31/4 8 547,913 - - 29,679
791,350 31/2 4 593,513 43,277 17,311 34,622
851,201 31/2 8 638,401 - - 37,240
917700 33/4 4 688275 53,771 21,509 43,017
982,300 33/4 8 736,725 - - 46,045
1052600 4 4 789450 65,788 26,315 52,630
1,121,950 4 8 841,463 - - 56,098

 

ASTM A276 UNS S31803

 

As a stockholder, we have an enormous supply of Astm A479 UNS S32760 Threaded Rod in almost every size. Call us for additional details on our current inventory and pricing.

 

Most Common Types of Uns S31803 Fasteners
ASTM A276 UNS S31803
ASTM A276 UNS S31803
Duplex Steel Uns S31803 Bolt
Duplex Steel Uns S31803 Bolt
Uns S31803 Studs
Uns S31803 Studs
UNS S32760 Heavy Hex Bolt
UNS S32760 Heavy Hex Bolt
UNS S32750 fasteners
UNS S32750 fasteners
Super Duplex S32760 Threaded Rod
Super Duplex S32760 Threaded Rod
Super Duplex Steel UNS S32750 Hex Bolts
Super Duplex Steel UNS S32750 Hex Bolts
Uns S31803 Socket head Cap Screw
Uns S31803 Socket head Cap Screw

 

Not being able to locate the Duplex S31803 Socket head Cap Screw in the required sizes? We are able to provide it in India; see weight chart

 

UNS S32750 Hex Bolts Dimensions
UNS S32750 Hex Bolts Dimensions
NOMINAL SIZE (D) ACRO THE FLATS HEAD THICKNESS BODY DIA. ACRO CORNERS
F (MAX) F (MIN) H (MAX) H (MIN) D (MAX) D (MIN) C (MAX) C (MIN)
m20 30.00 29.16 12.88 12.12 20.00 19.67 34.64 32.95
m12 19.00 17.73 7.76 4.24 12.00 11.73 20.78 20.03
m14 22.00 20.67 9.09 8.51 14.00 13.73 24.25 23.35
m10 17.00 15.73 6.63 6.17 10.00 9.78 18.48 17.77
m16 24.00 23.67 10.32 9.68 16.00 15.73 27.71 26.75
m30 46.00 45.00 19.48 17.92 30.00 29.67 53.12 50.85
m24 36.00 35.00 15.44 14.56 24.00 23.67 41.57 39.55
m100 145.00 140.00 63.9 60.10 90.00 99.13 167.43 159.60
m36 55.00 53.80 23.38 21.63 36.00 35.61 63.51 60.79
m48 75.00 72.60 31.07 28.93 48.00 47.38 86.60 82.76
m56 85.00 82.20 36.2 33.80 56.00 55.26 98.15 93.71
m42 65.00 62.90 26.97 25.03 42.00 41.38 75.06 71.71
m64 95.00 91.80 41.32 38.68 64.00 63.26 109.70 104.65
m80 115.00 111.00 51.58 48.42 80.00 79.26 132.72 126.54
m72 105.00 101.40 46.45 43.55 72.00 71.26 121.24 115.60
m90 130.00 125.50 57.74 54.26 90.00 89.13 150.11 143.07

 

Super Duplex S32750 Threaded Rod Size Chart
Super Duplex S32750 Threaded Rod Size Chart
ASTM A276 UNS S31803 Threaded Rod Weight per metre Threaded Rod Thread Threaded Rod Strength
Threaded Rod Class 70 Threaded Rod Class 80
UTS 0.2% proof UTS 0.2% proof
Kg/m kN kN kN kN
3.83 M27 321.3 206.6 367.2 275.4
1.31 M16 109.9 70.7 125.6 94.2
2.05 M20 171.5 110.3 196.0 147.0
0.72 M12 64.0 41.0 73.0 54.0
2.96 M24 247.1 158.9 282.4 211.8
14.65 M52 1230.6 791.1 1406.4 1054.8
6.84 M36 571.9 367.7 653.6 490.2
4.70 M30 392.7 252.6 448.8 336.6
8.14 M39 683.2 439.2 780.8 585.6
5.78 M33 485.8 312.3 555.2 416.4
9.38 M42 784.7 504.5 896.6 672.6
10.90 M45 914.2 587.7 1044.8 783.6
12.32 M48 1031.1 662.9 1178.4 883.8

 

Sizes of Astm A276 Super Duplex Steel UNS S32760 Nut
Sizes of Astm A276 Super Duplex Steel UNS S32760 Nut
Diameter*
(mm)
Nut Size
(mm)
Height
(mm)
Jam Nut Hex Nut Nylock Nut
8 5 2.7 4 5
5 2.5 1.6 2 -
5.5 3 1.8 2.4 4
30 20 10 16 20
4 2 1.2 1.6 -
7 4 2.2 3.2 5
19 12 6 10 12
11 7 3.5 5.5 -
22 14 7 11 14
13 8 4 6.5 8
24 16 8 13 16
10 6 3.2 5 6
17 10 5 8 10
27 18 9 15 18.5

 

Asme Sa 276 S32760 Heavy Hex Bolt Dimensions
 Heavy Hex Bolt Diameter  F  H  D  C
 Width Across Flats  Height  Body Diameter     Width Across Corners 
  Max        Basic  Min         Max       Basic  Min        Max  Min  Max
5/8 1.062 1-1/16 1.031 0.444 27/64 0.378 0.642 1.175 1.227
3/4 1.250 1-1/4 1.212 0.524 1/2 0.455 0.768 1.383 1.443
1/2 0.875 7/8 0.850 0.364 11/32 0.302 0.515 0.969 1.010
7/8 1.438 1-7/16 1.394 0.604 37/64 0.531 0.895 1.589 1.660
1-1/8 1.812 1-13/16 1.756 0.780 3/4 0.658 1.149 2.002 2.093
1 1.625 1-5/8 1.575 0.700 43/64 0.591 1.022 1.796 1.876
1-1/4 2.00 2 1.938 0.876 27/32 0.749 1.277 2.209 2.309
1-1/2 2.375 2-3/8 2.300 1.036 1 0.902 1.531 2.622 2.742
1-3/8 2.188 2-3/16 2.119 0.940 29/32 0.810 1.404 2.416 2.526
1-3/4 2.750 2-3/4 2.662 1.196 1-5/32 1.054 1.785 3.035 3.175
2-1/4 3.500 3-1/2 3.388 1.548 1-1/2 1.327 2.305 3.862 4.041
2 3.125 3-1/8 3.025 1.388 1-11/32 1.175 2.039 3.449 3.608
2-1/2 3.875 3-7/8 3.750 1.708 1-21/32 1.479 2.559 4.275 4.474

 

If you require Asme Sa 479 S32750 Heavy Hex Bolt, we can provide it in almost any size with the highest level of quality and standard. Please contact us for a price list.

 

Dimension of Duplex S31803 Socket head Cap Screw
Dimension of Duplex S31803 Socket head Cap Screw
Nominal Head Dia Hex Socket Size Thread. Body dia. and Head height Soc. length
Size Max Min Pitch Max Min
A J D /H K
M8 13.00 12.57 6.00 1.25 8.00 7.78 4.3
M4 7.00 6.64 3.00 0.70 4.00 3.82 2.00
M3 5.50 5.20 2.50 0.5 3.00 2.86 1.3
M10 16.00 15.57 8.00 1.5 10.00 9.78 5.50
M5 8.50 8.14 4.00 0.8 5.00 4.82 2.70
M6 10.00 9.64 5.00 1.0 6.00 5.82 3.30
M12 18.00 17.57 10.00 1.75 12.00 11.73 6.60
M20 30.00 29.48 17.00 2.5 20.00 19.67 10.70
M16 24.00 23.48 14.00 2.0 16.00 15.73 8.80
M24 36.00 35.38 19.00 3.0 24.00 23.67 12.90

 

UNS S32750 Heavy Hex Nuts Dimensions
Basic Major Thread Dia. or Nominal Size G F H
Across Corners Width Across Flats Width Thickness
Minimum Maximum Maximum Basic Minimum Maximum Basic Minimum
.02500 1/4 .0556 .0577 .0500 1/2 .0488 .0250 15/64 .0218
.03125 5/16 .0622 .0650 .0562 9/16 .0546 .0314 19/64 .0280
.03750 3/8 .0763 .0794 .0688 11/16 .0669 .0377 23/64 .0341
.04375 7/16 .0830 .0866 .0750 3/4 .0728 .0441 27/64 .0403
.05000 1/2 .0969 1.0010 .0875 7/8 .0850 .0504 31/64 .0464
.05625 9/16 1.0037 1.0083 .0938 15/16 .0909 .0568 35/64 .0526
.06250 5/8 1.0175 1.0227 1.0062 1-1/16 1.0031 .0631 39/64 .0587
.07500 3/4 1.0382 1.0443 1.0250 1-1/4 1.0212 .0758 47/64 .0710
.08750 7/8 1.0589 1.0660 1.0438 1-7/16 1.0394 .0885 55/64 .0833
1.00000 1 1.0796 1.0876 1.0325 1-5/8 1.0575 1.0012 63/64 .0956
1.01250 1-1/8 2.0002 2.0093 1.0812 1-13/16 1.0756 1.0139 1-7/64 1.0079
1.02500 1-1/4 2.0209 2.0309 2.0000 2 1.0938 1.0251 1-7/32 1.0187
1.03750 1-3/8 2.0416 2.0526 2.0188 2-3/16 2.0119 1.0378 1-11/32 1.0460
1.05000 1-1/2 2.0622 2.0742 2.0375 2-3/8 2.0300 1.0505 1-15/32 1.0433
1.06250 1-5/8 2.0828 2.0959 2.0562 2-9/16 2.0481 1.0632 1-19/32 1.0556
1.07500 1-3/4 3.0035 3.0175 2.0750 2-3/4 2.0662 1.0759 1-23/32 1.0679
2.00000 2 3.0449 3.0608 3.0125 3-1/8 3.0025 2.0013 1-31/32 1.0925
2.02500 2-1/4 3.0862 4.0041 3.0500 3-1/2 3.0388 2.0251 2-13/64 2.0155
2.05000 2-1/2 4.0275 4.0474 3.0875 3-7/8 3.0750 2.0505 2-29/64 2.0401
2.07500 2-3/4 4.0688 4.0907 4.0250 4-1/4 4.0112 2.0759 2-45/64 2.0647
3.00000 3 5.0102 5.0340 4.0625 4-5/8 4.0475 3.0013 2-61/64 2.0893
3.02500 3-1/4 5.0515 5.0774 5.0000 5 4.0838 3.0252 3-3/16 3.0124
3.05000 3-1/2 5.0928 6.0207 5.0375 5-3/8 5.0200 3.0506 3-7/16 3.0370
3.07500 3-3/4 6.0341 6.0640 5.0750 5-3/4 5.0562 3.0670 3-11/16 3.0616
4.00000 4 6.0755 7.0073 6.0125 6-1/8 5.0925 4.0014 3-15/16 3.0862

 

Uns S31803 Studs Size chart
Uns S31803 Studs Size chart
Stud bolt sizes Studs length
Nominal pipe size No. of Bolts Bolt Circle dia. OD of Flange Bolt Holes dia. Bolts dia. Ring Joint 0.06 in Raised Face
3/4 4 2 3/4 3 7/8 5/8 1/2 2 1/2
1 1/4 4 3 1/2 4 5/8 5/8 1/2 3 1/4 2 3/4
1/2 4 2 3/8 3 1/2 5/8 1/2 2 1/4
1 1/2 4 3 7/8 5 5/8 1/2 3 1/4 2 3/4
2 4 4 3/4 6 3/4 5/8 3 3/4 3 1/4
1 4 3 1/8 4 1/4 5/8 1/2 3 2 1/2
2 1/2 4 5 1/2 7 3/4 5/8 4 3 1/2
3 1/2 8 7 8 1/2 3/4 5/8 4 3 1/2
4 8 7 1/2 9 3/4 5/8 4 3 1/2
3 4 6 7 1/2 3/4 5/8 4 3 1/2
5 8 8 1/2 10 7/8 3/4 4 1/4 3 3/4
8 8 11 3/4 13 1/2 7/8 3/4 4 3/4 4 1/4
6 8 9 1/2 11 7/8 3/4 4 1/2 4
10 12 14 3/4 16 1 7/8 5 4 1/2
14 12 18 3/4 21 1 1/8 1 5 3/4 5 1/4
12 12 17 19 1 7/8 5 1/4 4 3/4
16 16 21 1/4 23 1/2 1 1/8 1 5 3/4 5 1/4
20 20 25 27 1/2 1 1/4 1 1/8 6 3/4 6 1/4
18 16 22 3/4 25 1 1/4 1 1/8 6 1/4 5 3/4
24 20 29 1/2 32 1 1/4 1 1/4 7 1/4 6 3/4

 

Learn more about Hex Cap Screws, Fixings, and Rivets in Various Threads, Dimensions, and Sizes made of Super Duplex S32760.

 

A276 S32750  Flat Washer Size Chart
A276 S32750 Flat Washer Size Chart
Bolt Size USS SAE
ID (in.) OD (in.) Thickness ID (in.) OD (in.) Thickness
5/32 (#8) - - - 0.188 0.438 .036/.065
1/8 (#6) - - - 0.156 0.375 .036/.065
7/32 (#12) - - - 0.250 0.562 .051/.080
3/16 (#10) 0.250 0.560 .036/.065 0.220 0.500 .036/.065
1/4 (#14) 0.312 0.734 .051/.080 0.281 0.625 .051/.080
3/8 0.438 1.000 .064/.104 0.406 0.812 .051/.080
5/16 0.375 0.875 .064/.104 0.344 0.688 .051/.080
7/16 0.500 1.250 .064/.104 0.469 0.922 .051/.080
9/16 0.625 1.469 .086/.132 0.594 1.156 .074/.121
1/2 0.562 1.375 .086/.132 0.531 1.062 .074/.121
5/8 0.688 1.750 .108/.160 0.656 1.312 .074/.121
7/8 0.938 2.250 .136/.192 0.938 1.750 .108/.160
3/4 0.812 2.000 .122/.177 0.812 1.469 .108/.160
1 1.062 2.500 .136/.192 1.062 2.000 .108/.160
1 1/4 1.375 3.000 .136/.192 1.375 2.500 .136/.192
1 1/8 1.250 2.750 .136/.192 1.250 2.250 .108/.160
1 3/8 1.500 3.250 .153/.213 1.500 2.750 .136/.213
3 3.125 5.500 .249/.327 - - -
1 5/8 1.750 3.750 .153/.213 - - -
1 1/2 1.625 3.500 .153/.213 1.625 3.000 .153/.213
1 3/4 1.875 4.000 .153/.213 - - -
2 2.125 4.500 .153/.213 - - -
1 7/8 2.000 4.250 .153/.213 - - -
2 1/2 2.625 5.000 .210/.280 - - -
2 1/4 2.375 4.750 .320/.248 - - -
2 3/4 2.875 5.250 .228/.410S - - -

 

Find Our Distributors And Stockists In Nearby Countries
 Duplex Steel Uns S31803 Bolt
Duplex Steel Uns S31803 Bolt
fox chemicals GmbH, Germany
UNS S32760 Fg Stud Bolts
UNS S32760 Fg Stud Bolts
GMAS Chemicals Ltd, Nigeria
Super Duplex S32750 Threaded Rod
Super Duplex S32750 Threaded Rod
P&R Group, Italy

 

Duplex S31803 bolts Weight Chart
Length in MM M 10 M 6 M 5 M 8 M 14 M 12 M 18 M 16 M 22 M 20
20 3.411 0.812 0.598 1.711 4.892
16 3.211 0.743 0.448 1.590
25 3.660 0.897 0.660 1.871 8.170 5.252
35 4.223 1.120 0.804 2.271 10.000 5.974 16.026 11.416 19.608
30 3.912 1.010 0.737 2.070 9.690 5.574 10.707 18.657
40 4.533 1.230 0.881 2.470 10.288 6.410 16.667 12.107 20.747
50 5.155 1.450 1.030 2.870 11.261 7.299 17.857 13.624 28.409 22.727
45 4.840 1.340 0.958 2.671 10.504 6.859 17.241 12.821 21.739
55 5.464 1.560 3.071 11.628 7.740 18.868 14.409 30.120 23.810
65 6.083 1.781 3.472 12.626 8.621 21.008 16.026 34.014 26.455
60 5.774 1.670 3.270 12.255 8.183 20.000 15.244 32.051 25.126
70 6.394 1.890 3.671 12.987 9.058 22.124 16.835 35.461 27.778
80 7.013 2.111 4.072 13.889 10.000 24.510 18.248 40.000 30.303
75 6.702 2.000 3.873 13.228 9.506 23.256 17.606 39.063 29.070
90 7.634 4.472 14.925 10.917 26.042 19.841 41.667 33.113
110 8.881 17.730 12.723 31.250 23.041 47.170 38.168
100 8.251 4.873 16.340 11.820 27.778 21.459 46.296 35.714
120 9.506 18.797 13.624 32.895 24.631 50.000 40.984
140 10.707 20.833 15.432 35.461 27.933 55.556 46.296
150 11.312 22.222 16.340 37.594 29.412 58.824 48.544
130 10.101 20.000 14.535 34.722 26.316 52.632 43.478
160 11.905 24.272 17.241 40.984 31.056 61.728 50.505
180 13.123 26.882 19.011 34.247 67.568 55.556
190 13.736 19.920 35.971 70.423 58.140
170 12.500 18.116 32.680 64.935 53.191
200 14.327 29.586 20.833 49.020 37.594 73.529 60.976
240 16.722 24.510 43.860 84.746 71.429
220 15.528 22.624 40.650 79.365 65.789
250 17.301 25.381 45.455 87.719 74.627
280 19.157 28.090 50.505 98.039 81.967
260 17.921 26.316 47.170 90.909 76.923
300 20.325 29.940 53.763 104.167 87.719
340 33.557 60.241 98.039
320 31.646 56.818 92.593
380 37.037 66.667 108.696
360 35.211 63.291 104.167
400 39.063 69.444 113.636

 

Chemical Composition of Uns S31803 Fasteners
  N
Cr
Ni Mn C Si S P Mo
UNS S31803 min: 0.08
max: 0.20
min: 21.0
max: 23.0
min: 4.5
max: 6.5
2.0
max
0.03
max
1.0
max
0.02
max
0.03
max
min: 2.5
max: 3.5

 

Mechanical Properties of Duplex S31803 Threaded Rod
Grade Hardness 
Rockwell C (HR C)
Elongation 
(% in 50mm)
Tensile Strength
(MPa) min
Yield Strength
0.2% Proof (MPa) min
UNS-S 31803 25 650-880 448

 

Equivalent of Duplex Steel Uns S31803 Hex Cap Screw
Common Name Duplex Related Specifications
    UNS ASTM/ASME European
SAF 2205 ® UNS S31803 S31803 F51 1.4462