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Super Duplex 32750 Fasteners

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Super Duplex S32750 Fasteners, ASTM A479 Super Duplex S32750 Stud Bolt, UNS S32750 Hex Bolt, ASME SA479 Heavy Hex Nut, DIN 1.4410 Allen Bolt, Grade S32750 Plain Washer, UNS S32750 Spring Washer.

What is meant by Super Duplex Steel S32750 Fasteners?

The metallurgical microstructure of Super Duplex S32750 fastener is composed of an equal blend of ferrite and austenite categories of steel. These fasteners physical and superior mechanical qualities, such as their high yield strength, great tensile strength, high impact strength, and excellent corrosion resistance, are some of their benefits.

Because of their exceptional physical and mechanical qualities, Super Duplex Steel S32750 Stud bolts can meet the high demands of the gas, oil, and marine sectors. It possesses the ideal ratio of molybdenum to chromium, which significantly increases its resistance to widespread corrosion.

Properties of Super Duplex S32750 Fasteners:

  • The Super Duplex Bolts and Nuts have a minimum yield strength of 550MPa and a minimum tensile strength of 795MPa.  
  • The UNS S32750 Super Duplex Hex Bolt grade guarantees strong resistance to abrasion and erosion. Additionally, they provide excellent resistance to both local and uniform corrosion at extremely high temperatures.  
  • The SD UNS S32750 Hex Nut have strong energy absorption, minimal thermal expansion, and fatigue resistance. Additionally, it ensures high weldability and has muscular mechanical strength. 
  • Because this alloy contains alloying elements, including nickel, nitrogen, chromium, and molybdenum, processing it is challenging. The DIN 1.4410 Fasteners are subjected to heat cycle operations like welding, leading to intermetallic phases’ precipitation.

About Super Duplex 32750 Fasteners

Evolution of Super Duplex S32750 Fasteners:

Since the 1970s, super duplex steel has been used to make contemporary fasteners because of their high degree of similarity and survivability in applications. Fasteners made of Super Duplex Steel S32750, chromium, and nickel alloys are significantly more tensile and robust than stainless steel. Industrialists created super duplex steel fasteners to solve the corrosion resistance, fatigue resistance, and high-temperature strength, which were three critical problems with stainless steel screws.

The first problem is resolved by increasing the proportion of chrome and nickel in the alloying components since these metals stop oxidation and, consequently, stop rust from forming on items. A second problem is handled by using nickel in the design, improving toughness, flexibility, and wear resistance.

Testing of Super Duplex S32750 Fasteners:

Numerous tests are carried out to deliver the most incredible possible product. Axial tensile strength, hardness test, mechanical test, drop-weight test, creep test, torsion test, compression test, flexure test, fatigue test, and proof load test are among the trials. There is another test. Chemical analysis, destructive/non-destructive tests, micro/macro tests, wedge tensile strength tests, radiographic tests, ultrasonic tests, flaring tests, and intergranular corrosion tests.

Applications of Super Duplex S32750 Fasteners:

These ASTM A479 Super Duplex S32750 Threaded Rods are used in onshore, offshore, and marine applications because they are perfect for use in high-corrosion environments. This material is better suited for residential and commercial sectors since it resists breaking readily and can be utilized in high-pressure situations.

Specification Of Super Duplex 32750 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 Super Duplex 32750 Fasteners

STANDARDWERKSTOFF NR.UNS
Super Duplex S327501.4410S32750

Chemical Composition Super Duplex 32750 Fasteners

GradeCMnSiPSCrMoNiNFe
Super Duplex S327500.030 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 Super Duplex 32750 Fasteners

Density (g/cm 3)Density (lb/in 3)Melting Point (°C)Melting Point (°F)
7.80.28113502460

Dimensions Of Super Duplex 32750 Fasteners

Super Duplex 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

Super Duplex 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

Super Duplex 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

Super Duplex 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 Super Duplex 32750 Fasteners

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

Application of Super Duplex 32750 Fasteners

Testing of Super Duplex 32750 Fasteners

Packing of Super Duplex 32750 Fasteners

Destination Of Super Duplex 32750 Fasteners

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