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Duplex UNS S31803 Fasteners

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Duplex S31803 Fasteners, ASTM A182 Duplex S31803 Stud Bolt, UNS S31803 Hex Bolt, ASME SA182 Heavy Hex Nut, DIN 1.4462 Allen Bolt, Grade S31803 Plain Washer, UNS S31803 Spring Washer.

What is meant by Duplex UNS S31803 Fasteners?

Standard, super, and lean duplexes are the three different types. The common duplex material is used to make the Duplex UNS S31803 Fasteners. The material’s composition includes nitrogen, 2.5% molybdenum, 4.5% nickel, 21% chromium, manganese, silicon, phosphorus, and carbon. There are several kinds, including hex bolts, threaded rods, screws, and nuts.

Properties of Duplex UNS S31803 Fasteners:

  • The ferritic and austenitic properties of duplex steel combine to provide robust, corrosion-resistant fasteners. 
  • Additionally, the material has a minimum yield strength of 65 ksi and a minimum tensile strength of 90 ksi.  
  • The hardness of 2205 duplex steel bolts is 217HBW, and its elongation rate is 25%. They can also be employed in severe environments with a lot of wear and tear.  
  • These UNS S31803 Hex bolt alloys have a high yield strength and strong fatigue resistance. Therefore, this fastener selection exhibits ferritic and austenitic stainless steel properties.  
  • The fasteners exhibit exceptional resistance to pitting, stress corrosion cracking, and crevice corrosion in harsh environments. Additionally, they remarkably resist corrosion in situations with chloride and sulfuric acid.  
  • These Duplex Grade S31803 Threaded Bolts are machined either using high-speed or carbide tooling. Additionally, they are cold-worked using conventional techniques, and hot-working is done at temperatures between 954 and 1149 degrees Celsius. 
  • These fasteners are easily welded and exhibit slight intergranular corrosion after welding. 
  • It is a Duplex steel grade fastener that is ultra-low carbon duplex.

About Duplex UNS S31803 Fasteners

Testing of Duplex UNS S31803 Fasteners:

Under the supervision of the test controllers, the items are rigorously checked and tested to ensure their quality and accuracy. These tests include the flare test, hardness test, pitting resistance test, mechanical test, PMI test, micro test, and macro test. The IGC test, radiography test, third-party inspection report, and ultrasonic test are further tests.

Applications of Duplex UNS S31803 Fasteners:

  • ASTM A479 Duplex S31803 Stud bolts are utilized in various industries, including chemical processing, maritime, pulp and paper, transport, and storage. There are several kinds, including hex bolts, threaded rods, screws, and nuts. 
  • The hexagon-shaped head of the Duplex UNS S31803 Fasteners makes it easy to tighten or loosen with tools. These fasteners are typically utilized in engine parts and other densely packed components to minimize the amount of space the fasteners occupy. 
  • Duplex UNS S31803 Heavy Hex Nuts, renowned for their superb combination of solid corrosion resistance and superior mechanical qualities, are frequently employed in industrial applications, including manufacturing chemical containers for use in high-chloride settings and seawater heat exchangers. 

Specification Of Duplex UNS S31803 Fasteners

SpecificationsASTM A479, A182 / ASME SA479, SA182 and DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards
SizeM3 - M100 | 3/6″ - 4″ | Custom Sizes
Fasteners Length3 mm - 200 mm | Custom Sizes
Nuts SizeM3 - M56 | 3/6" to 2" | Custom Sizes
Washers SizeM3 - M56 | 3/6" to 2" | Custom Sizes
DimensionsDIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads ConfigurationASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads and UNF, BSW, BSF, METRIC, UNC, or as required
FormHex, Threading, Square, Round as per Gauge Etc.
HeadHex, Square, Round, Hex flange, Flat, T-head & Triangular etc.
Neck typeHex, Square, Triangular, Oval & Knurled etc.
Manufacturing ProcessPassivation /plain, Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.
Surface CoatingBlack Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
PackingIN BULK: carton, pallet, Small Boxes or customer request
Test CertificateAs per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
CertificationDual Certified As per ASTM & ASME Codes
Delivery timeRegular product : 7-15 days, Custom product : 2-4 weeks

Equivalent Grades Duplex UNS S31803 Fasteners

STANDARDUNSWNR.
Duplex Steel 31803S318031.4462

Chemical Composition Duplex UNS S31803 Fasteners

GradeCMnSiPSCrMoNiNFe
Duplex Steel S318030.030 max1.20 max0.80 max0.035 max0.020 max24.00 – 26.003.00 – 5.006.00 – 8.000.24 – 0.3258.095 min

Mechanical Properties Duplex UNS S31803 Fasteners

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
7.9 g/cm31402 °C (2555 °F)Psi – 75000 , MPa – 515Psi – 30000 , MPa – 20540 %

Dimensions Of Duplex UNS S31803 Fasteners

Duplex Steel Bolts Dimensions Chart :

Nominal Size
or Basic
Product
Diameter

Full-Size Body
Diameter,
E
Width Across Flats,
F
Width Across
Corners, G
Head Height, H BasicRadius of
Fillet, R
Nominal Thread
Length for Bolt
Lengths,
LT
inchmmMaxMinBasic
inch
MaxMinMaxMinBasic
inch
MaxMinMaxMin6 in. and
Shoter
Over
6 in.
1⁄40.250.260.2377⁄160.4380.4250.5050.48411⁄640.1880.150.030.010.751
5⁄160.31250.3240.2981⁄20.50.4840.5770.5527⁄320.2350.1950.030.010.8751.125
3⁄80.3750.3880.369⁄160.5620.5440.650.621⁄40.2680.2260.030.0111.25
7⁄160.43750.4520.4215⁄80.6250.6030.7220.68719⁄640.3160.2720.030.011.1251.375
1⁄20.50.5150.4823⁄40.750.7250.8660.82611⁄320.3640.3020.030.011.251.5
5⁄80.6250.6420.60515⁄160.9380.9061.0831.03327⁄640.4440.3780.060.021.51.75
3⁄40.750.7680.72911⁄81.1251.0881.2991.241⁄20.5240.4550.060.021.752
7⁄80.8750.8950.8521 5⁄161.3121.2691.5161.44737⁄640.6040.5310.060.0222.25
111.0220.9761 1⁄21.51.451.7321.65343⁄640.70.5910.090.032.252.5
1 1⁄81.1251.1491.0981 11⁄161.6881.6311.9491.8593⁄40.780.6580.090.032.52.75
1 1⁄41.251.2771.2231 7⁄81.8751.8122.1652.06627⁄320.8760.7490.090.032.753
1 3⁄81.3751.4041.3452 1⁄162.0621.9942.3822.27329⁄320.940.810.090.0333.25
1 1⁄21.51.5311.472 1⁄42.252.1752.5982.4811.0360.9020.090.033.253.5
1 5⁄81.6251.6581.5912 7⁄162.4382.3562.8152.6161 3⁄321.1160.9780.090.033.53.75
1 3⁄41.751.7851.7162 5⁄82.6252.5383.0312.8931 5⁄321.1961.0540.120.043.754
1 7⁄81.8751.9121.8392 13⁄162.8122.7193.2483.0991 1⁄41.2761.130.120.0444.25
222.0391.964332.93.4643.3061 11⁄321.3881.1750.120.044.254.5
2 1⁄42.252.3052.2143 3⁄83.3753.2623.8973.7191 1⁄21.5481.3270.190.064.755
2 1⁄22.52.5592.4613 3⁄43.753.6254.334.1331 21⁄321.7081.4790.190.065.255.5
2 3⁄42.752.8272.7114 1⁄84.1253.9884.7634.5461 13⁄161.8691.6320.190.065.756
333.0812.9614 1⁄24.54.355.1964.95922.061.8150.190.066.256.5
3 1⁄43.253.3353.214 7⁄84.8754.7125.6295.3722 3⁄162.2511.9360.190.066.757
3 1⁄23.53.5893.4615 1⁄45.255.0756.0625.7862 5⁄162.382.0570.190.067.257.5
3 3⁄43.753.8583.7265 5⁄85.6255.4376.4956.1982 1⁄22.5722.2410.190.067.758
444.1113.975665.86.9286.6122 11⁄162.7642.4240.190.068.258.5

Duplex Steel Stud Bolts Dimensions Chart :

Nominal Size
Diameter, D
inch
Tap End Full
Thread Length,
BM
Umax = 2PMinimum Nut End
Full Thread Length,
Bmin
NominalMin.Max.UNC & NC-5
Thread
UNF Thread8UN ThreadL ≤ 1010
L > 16
1/40.3750.3500.4000.1000.071...0.7501.0001.500
5/160.4690.4400.4980.1110.083--0.8751.1251.625
3/80.5630.5320.5940.1250.083--1.0001.2501.750
7/160.6560.6200.6920.1430.100--1.1251.3751.875
1/20.7500.7080.7920.1540.100--1.2501.5002.000
9/160.8440.8020.8960.1670.111--1.3751.6252.125
5/80.9380.8920.9830.1820.111--1.5001.7502.250
3/41.1.251.0751.1750.2000.125--1.7502.0002.500
7/81.3131.2581.3680.2220.143--2.0002.2502.750
11.5001.4381.5620.2500.167--2.2502.5003.000
1 1/81.6881.6251.7500.2860.1670.2502.5002.7503.250
1 1/41.8751.8131.9380.2860.1670.2502.7503.0003.500
1 3/82.0632.0002.1250.3330.1670.2503.0003.2503.750
1 1/22.2502.1882.3130.3330.1670.2503.2503.5004.000
1 5/82.4382.3752.500----0.2503.5003.7504.250
1 3/42.6252.5632.6880.400--0.2503.7504.0004.500
1 7/82.8132.7502.875----0.2504.0004.2504.750
23.0002.9253.0750.444--0.2504.2504.5005.000
2 1/43.3753.3003.4500.444--0.2504.7505.0005.500
2 1/23.7503.6753.8250.500--0.2505.2505.5006.000
2 3/44.1254.0504.2000.500--0.2505.7506.0006.500
34.5004.4254.5750.500--0.250--6.5007.000
3 1/44.8754.7754.9750.500--0.250--7.0007.500
3 1/25.2505.1505.3500.500--0.250--7.5008.000
3 3/45.6255.5255.7250.500--0.250--8.0008.500
46.0005.9006.1000.500--0.250--8.5009.000

Duplex Steel Nuts Dimensions :

Nominal
Size

inch
Basic Major
Diameter of
Thread
Width Across Flats,
F
Width Across
Corners,
G
Thickness Heavy
Hex Nuts,
H
Thickness Heavy
Hex Jam Nuts,
H1
Maximum Runout of
Bearing Surface to
Thread
Axis, FIM
Heavy HEX NUTSHeavy Hex
Jam Nuts
Specified Proof load
Basic
inch
Min.MaxMin.MaxBasic
inch
Min.MaxBasic
inch
Min.MaxUp to
150,000 psi
150,000 psi
and Greater
All Strength
Levels
1/40.25001/20.4880.5000.5560.57715/640.2180.25011/640.1560.1880.0170.0110.017
5/160.31259/160.5460.5620.6220.65019/640.2800.31413/640.1860.2200.0200.0120.020
3/80.375011/160.6690.6880.7630.79423/640.3410.37715/640.2160.2520.0210.0140.021
7/160.43753/40.7280.7500.8300.86627/640.4030.44117/640.2470.2850.0220.0150.022
1/20.50007/80.8500.8750.9691.01031/640.4640.50419/640.2770.3170.0230.0160.023
9/160.562515/160.9090.9381.0371.08335/640.5260.56821/640.3070.3490.0240.0170.024
5/80.62501 1/161.0311.0621.1751.22739/640.5870.63123/640.3370.3810.0250.0180.025
3/40.75001 1/41.2121.2501.3821.44347/640.7100.75827/640.3980.4460.0270.0200.027
7/80.87501 7/161.3941.4381.5891.66055/640.8330.88531/640.4580.5100.0290.0220.029
11.00001 5/81.5751.6251.7961.87663/640.9561.01235/640.5190.5750.0310.0240.031
1 1/81.12501 13/161.7561.8122.0022.0931 7/641.0791.13939/640.5790.6390.0330.0270.033
1 1/41.250021.9382.0002.2092.3091 7/321.1871.25123/320.6870.7510.0350.0300.035
1 3/81.37502 3/162.1192.1882.4162.5261 11/321.3101.37825/320.7470.8150.0380.0330.038
1 1/21.50002 3/82.3002.3752.6222.7421 15/321.4331.50527/320.8080.8800.0410.0360.041
1 5/81.62502 9/162.4812.5622.8282.9591 19/321.5561.63229/320.8680.9440.0440.0380.044
1 3/41.75002 3/42.6622.7503.0353.1751 23/321.6791.75931/320.9291.0090.0480.0410.048
1 7/81.87502 15/162.8442.9383.2423.3921 27/321.8021.8861 1/320.9891.0730.0510.0440.051
22.00003 1/83.0253.1253.4493.6081 31/321.9252.0131 3/321.0501.1380.0550.0470.055
2 1/42.25003 1/23.3883.5003.8624.0412 13/642.1552.2511 13/641.1551.2510.0610.0520.061
2 1/22.50003 7/83.7503.8754.2754.4742 29/642.4012.5051 29/641.4011.5050.0680.0580.068
2 3/42.75004 1/44.1124.2504.6884.9072 45/642.6472.7591 37/641.5221.6340.0740.0640.074
33.00004 5/84.4754.6255.1025.3402 61/642.8933.0131 45/641.6431.7630.0810.0700.081
3 1/43.250054.8385.0005.5155.7743 3/163.1243.2521 13/161.7481.8760.0870.0750.087
3 1/23.50005 3/85.2005.3755.9286.2073 7/163.3703.5061 15/161.8702.0060.0940.0810.094
3 3/43.75005 3/45.5625.7506.3416.6403 11/163.6163.7602 1/161.9902.1340.1000.0870.100
44.00006 1/85.9256.1256.7557.0733 15/163.8624.0142 3/162.1122.2640.1070.0930.107

Duplex Steel Washer Dimensions Chart :

Nominal SizeTClipped Width E, Min.
I.D.O.D.StandardExtra Thick
[Note (1)]Max.Min.Max.Min.Max.Min.Max.Min.[Note (2)]
1214.4142725.74.63.110810.5
1618.4183432.44.63.110814
2022.5224240.44.63.110817.5
2224.5244442.44.63.410819.2
2426.5265048.44.63.410821
2730.53056S4.14.63.410823.6
3033.6336058.14.63.410826.2
3639.6397270.14.63.410831.S
4245.6458481.87.24.610836.7
4852.7529592.87.24.610842
5662.762107104.88.76.110849
6470.770118115.88.76.110856
7278.778130127.58.76.110863
8086.986142139.58.76.110870
9096.996159156.58.76.110878.7
100107.9107176173.58.76.110887.5

Different Types Of Duplex UNS S31803 Fasteners

Different Types Of Bolts
Different Types Of Studs Bolts
Different Types Of Nuts
Different Types Of Washer
Different Types Of Screw

Application of Duplex UNS S31803 Fasteners

Testing of Duplex UNS S31803 Fasteners

Packing of Duplex UNS S31803 Fasteners

Destination Of Duplex UNS S31803 Fasteners

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