Monel round bar

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Monel round bar
What does mean by Monel round bar ?

Monel is one of the most resilient alloys, especially for marine engineering based applications. The high copper content in monel round bar enhances corrosion resistance in brine solutions or chloride environments. In fact, monel rounds can also be used in rapidly flowing water.

Thus, the material is preferred over standard stainless steel grades in marine environments. It can also effectively withstand bio-fouling. Renowned monel round bar manufacturer in India- Regent Steel & Engineering Co. can customize the dimensions and surface finish of the bars to fit your specific application requirements.

The round bars are widely recommended in the engineering industries. They are manufactured following international quality standards. Monel has high longevity and it requires very less maintenance. The bars are annealed at 1038 °C followed by cooling. The bars can be used in catalytic regeneration for petrochemical works in services of more than 700 °C.

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We are delighted to introduce ourselves as the initial monel rod and flat bar manufacturer in India, are you curious to learn how testing and heat treatment perform ?

How testing and heat treatment perform on Monel rod ?

Monel rods undergo several tests to ensure their integrity and properties. This includes:

  • Chemical composition analysis ensures the rod meets the specific alloy requirements.
  • Mechanical tests include tensile and hardness tests.
  • Ultrasonic tests detect internal defects and ensure material integrity.
  • There are also dimensional and surface finish inspections.
  • The non-destructive test detects issues that can interfere with the performance of the rod.

The common heat treatments applied on the rods are annealing, age hardening and stress relieving.

As the most trusted stockist of monel hex bar in Mumbai, we offer competitive prices and adhere to ASTM B164 standards. Discover more about its welding method

Monel rod

Monel rod

Monel bar stock

Monel bar stock

ASTM B164 monel hex bar

ASTM B164 monel hex bar

Which welding method used for Monel bar?

Common welding procedures can be used on monel bars like GTAW or GMAW. However, you should refer to expert advice and use proper filler material to ensure proper weld integrity.

We, as a monel bar supplier, maintain a ready stock inventory of sizes ranging from 0.125 inch to 12 inches in for marine engineering at lowest possible price

Monel round bar specification
Diameter Condition Length
1/2 to 8 inch cold drawn, annealed, turned upto 12" or custom
Specification Grades Form
ASTM B164| ASME SB164 Monel 400, 401, 405, 404, K500 Round, Hex, Square, Rectangular
We offer ASME SB164 monel alloy shaft and square bar that can be cut to length in any size to meet the customer's specifications, check bar stock from our inventory
What are the different types of monel rod ?
Monel alloy flat bar

Monel alloy flat bar

  • Size: 1/2 to 8 inch
  • Length: upto 12 inch
  • ASTM B164 | ASME SB164
ASME SB164 monel square bar

ASME SB164 monel square bar

  • Matt Finish
  • Bright Polished
  • NO.4 Finish
Monel alloy shaft

Monel alloy shaft

  • Process piping and vessels
  • Heat exchangers
  • gasoline tank
Struggling to find monel alloy rectangular bar and bright bar an uncommon size? Don't fret, you can now purchase online at dealer pricing and examine its chemical/mechanical/equivalent.
Monel hex bar equivalent
STANDARD UNS EN AFNOR WERKSTOFF NR. equivalents GOST JIS BS
Alloy K500 N05500 2.4375
Alloy 400 N04400 NiCu30Fe NU-30M 2.4360 МНЖМц 28-2,5-1,5 NW 4400 NA 13
Monel alloy shaft mechanical properties
Tensile strength, Ultimate 550 Mpa
Tensile strength, Yield 240 Mpa
Elongation at Break 48%
Monel flat bar chemical properties
Monel Grade ASTM/AISI Alloy Type UNS No. %Cu %Ti %Si %Ni %Fe %Mn %Al
Monel 400 B 127/ B 164 N04400 28-34 Max 0.5 Min. 63 Max 2.5 Max 2.0
Monel K500 B 865 N05500 27-33 0.35-0.85 Max 0.5 Min. 63 Max 2.0 Max 1.5 2.3-3.15
Monel 401 N04401 28-34 Max 0.5 Min. 63 Max 2.5 Max 2.0
Monel 405 B 164 N04405 28-34 Max 0.5 Min. 63 Max 2.5 Max 2.0
Monel 404 N04404 Remaining Max 0.1 52-57 Max 0.5 Max 0.1 Max 0.05
What are different surface finishes available for Monel hex bar ?

The surface finishes on monel hex bars will include:

  • Mill finish comes with a slightly rough or textured appearance.
  • The bright annealed finish gives a smooth and reflective finish on the bar along with improving the corrosion resistance properties.
  • They are polished to achieve specific requirements and can be used in decorative or architectural applications.
  • Grinded finish helps to achieve precision shining and tight dimensional tolerances.
  • Electroplated bars can be used for hygienic applications in pharmaceutical and food processing industries.
What advantages are there to using Monel flat bar in marine applications?
  • Monel flat bars are used in marine applications because it can resist brine solution and chloride containing environments.
  • They offer good mechanical strength and toughness required in shipbuilding, offshore platforms, etc.
  • They can resist biofouling and reduce the risk of bioorganisms accumulating on the vessel surface.
  • Monel can effectively resist crevice corrosion and pitting.
  • They are durable and has an aesthetic appearance.
What environmental factors influence the efficiency of Monel round bar?
  • Monel alloy bars can be influenced by the concentration of salts in the solution. The presence of chloride ions can particularly impact its corrosion resistance properties.
  • Temperature should be within the threshold for ensuring optimal performance.
  • A perfect pH level will ensure the ASTM B164 Monel bars do not get corrode.
  • Exposure to aggressive chemicals and oxygen also has an impact.
  • The velocity of fluid flow and duration of exposure in a given environment also impact the efficiency of the round bars.
Tolerances of Monel rod
Section/Shape variation Permitted diameter, Size or width across flats
millimeter millimeter
Round + 0 to - 00.070
+ 0 to - 00.085
+ 0 to - 00.100
+ 0 to - 00.120
+ 0 to - 00.140
≥6 ≦ 18
> 18 ≦ 30
> 30 ≦ 50
> 50 ≦ 80
> 80 ≦ 100
Square and
hexagon
+ 0 to - 00.090
+ 0 to - 00.110
+ 0 to - 00.130
+ 0 to - 00.160
+ 0 to - 00.250
≥ 6 ≦ 18
> 18 ≦ 30
> 30 ≦ 50
> 50 ≦ 80
> 80 ≦ 105
Flat (thickness) + 0 to - 00.110
+ 0 to - 00.130
+ 0 to - 00.250
+ 0 to - 00.350
< 18
> 18 ≦ 30
> 30 ≦ 50
> 50 ≦ 80
Flat (width) + 0 to - 00.110
+ 0 to - 00.130
+ 0 to - 00.160
+ 0 to - 00.190
+ 0 to - 00.220
+ 0 to - 00.350
+ 0 to - 1.00
+ 1.00 to - 1.00
< 18
> 18 ≦ 30
> 30 ≦ 50
> 50 ≦ 80
> 80 ≦ 100
> 100 ≦ 130
> 130 ≦ 160
> 160 ≦ 320
Monel bar size range
Metric Japanese US Bar Canadian/ASTM
Diam. (mm) Bar Size Diameter (mm) Bar Size Diam. (Inch) Bar Size Diameter (mm2) Bar Size
6 6 13 13 0.500 #4 300 20M
5 5 6 6 0.250 #2 100 10M
7 7 16 16 0.625 #5 500 25M
5.5 5.5 10 10 0.375 #3 200 15M
8 8 19 19 0.750 #6 700 30M
10 10 25 25 1.000 #8 1500 45M
9 9 22 22 0.875 #7 1000 35M
50 50
11 11 29 29 1.125 #9 2500 55M
14 14 35 35 1.375 #11
12 12 32 32 1.250 #10
16 16 38 38 1.500 #12
20 20 44 44 1.750 #14
22 22 48 48 1.875 #15
18 18 41 41 1.625 #13
28 28 57 57 2.250 #18
25 25 51 51 2.000 #16
32 32
40 40
36 36
44 44
Surface finish of Monel hollow bar
RT Rough turned/peeled P&T Peeled and turned
SRE Slit rolled edge BD Bright drawn
P Polished CD Cold drawn
HRAP Hot rolled annealed and pickled CF Cold finished
HF Hot finished CG Centreless ground
PR Peeled and reeled ST Smooth turned
Monel flat bar sizes
Flat bar – metric sizes and weights
Flat Size Standard Length (metres) KG’s per Metre Colour Code
13 x 3 6.0 0.31 Blue
10 x 3 6.0 0.24 Blue
13 x 5 6.0 0.46 Orange
16 x 5 6.0 0.64 Orange
16 x 3 6.0 0.38 Blue
16 x 8 6.0 1.03 Red
20 x 5 6.0 0.81 Orange
20 x 3 6.0 0.48 Blue
20 x 6 6.0 0.97 White
25 x 3 6.0 0.60 Blue
20 x 10 6.0 1.61 Yellow
25 x 5 6.0 1.01 Orange
25 x 8 6.0 1.61 Red
25 x 6 6.0 1.21 White
25 x 10 6.0 2.01 Yellow
32 x 3 6.0 0.77 Blue
25 x 12 6.0 2.41 Pink
32 x 6 6.0 1.55 White
32 x 5 6.0 1.29 Orange
32 x 8 6.0 2.06 Red
32 x 12 6.0 3.09 Pink
40 x 3 6.0 0.97 Blue
32 x 10 6.0 2.58 Yellow
40 x 5 6.0 1.61 Orange
Test certificates of Monel alloy cold drawn bar
  • EN 10204/3.1B,
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc
Monel hex bar size chart
Wt per Ft Size in Inches Wt per 12′
0.180 1/4″ 2.160
0.104 3/16″ 1.248
0.290 5/16″ 3.480
0.104 3/16″ 1.248
0.560 7/16″ 6.72
0.625 3/8″ 4.920
0.740 1/2″ 8.880
1.150 5/8″ 13.80
0.930 9/16″ 11.16
1.660 3/4″ 19.92
1.390 11/16″ 16.68
1.950 13/16″ 23.40
2.625 15/16″ 31.20
2.300 7/8″ 27.60
2.90 1″ 34.80
3.700 1-1/8″ 44.40
3.30 1-1/16″ 39.60
4.625 1-1/4″ 55.20
5.625 1-3/8″ 67.20
5.100 1-5/16″ 61.20
6.100 1-7/16″ 73.20
7.800 1-5/8″ 93.60
18.42 2-1/2″ 221.04
6.625 1-1/2″ 79.20
9.030 1-3/4″ 108.36
11.80 2″ 141.60
10.400 1-7/8″ 124.80
16.920 2-3/8″ 203.04
14.920 2-1/4″ 179.04
26.53 3″ 318.36
Application of Monel alloy shaft
  • Power Generation
  • Condensers
  • Gas Processing
  • Pharmaceutical Equipment
  • Specialty Chemicals
  • Pulp and Paper Industry
  • Heat Exchangers
  • Chemical Equipment
  • Petrochemicals
Weight chart of Monel bright bar
Size kilogram / Foot kilogram / Meter Size kilogram / Foot kilogram / Meter Size kilogram / Foot kilogram / Meter
1/" 0.019 0.062 3-1/4" 12.800 41.996 22mm 0.908 2.979
3mm 0.017 0.055 3" 10.900 35.762 20mm 0.753 2.470
5/32" 0.029 0.095 3-1/2" 14.850 48.772 7/8" 0.926 3.038
5mm 0.047 0.154 4-1/4" 21.908 72.249 1" 1.210 3.970
3/16" 0.043 0.141 4" 19.306 63.340 25mm 1.180 3.871
4mm 0.030 0.098 3-3/4" 17.001 55.780 24mm 1.080 3.543
6mm 0.068 0.223 4-3/4" 27.366 90.249 27mm 1.368 4.490
7/32" 0.058 0.190 4-1/2" 24.4487 80.340 26mm 1.271 4.170
7mm 0.091 0.298 5-1/2" 36.690 121.000 30mm 1.691 5.548
1/4" 0.076 0.249 5" 30.461 99.940 1-1/8" 1.534 5.033
8mm 0.120 0.398 6-1/2" 51.093 167.630 32mm 1.894 6.314
5/16" 0.118 0.387 6" 43.860 143.900 1-1/4" 1.924 6.349
3/8" 0.170 0.557 7-1/2" 68.226 225.000 35mm 2.390 7.553
9mm 0.152 0.498 7" 59.432 196.000 1-3/8" 2.303 7.550
11mm 0.228 0.748 10" 121.048 397.140 38mm 2.792 8.903
10mm 0.189 0.620 8" 77.586 254.55 36mm 2.438 7.999
12mm 0.271 0.889       40mm 3.009 9.872
7/16" 0.232 0.761       1-1/2" 2.715 8.951
13mm 0.318 1.043       1-3/4" 3.712 12.179
1/2" 0.303 0.994       1-5/8" 3.200 10.449
9/16" 0.383 1.256       1-7/8" 4.260 13.977
14mm 0.368 1.207       45mm 3.807 12.555
5/8" 0.473 1.551       50mm 4.698 15.414
15mm 0.424 1.391       48mm 4.330 14.205
17mm 0.543 1.791       2-1/8" 5.475 17.963
16mm 0.481 1.578       2" 4.848 15.906
18mm 0.610 2.001       60mm 6.768 22.205
11/16" 0.573 1.880       2-1/4" 6.135 20.128
3/4" 0.682 2.237       2-3/8" 6.838 22.435
            2-1/2" 7.576 24.856
            2-5/8" 8.354 27.409
      2-3/4" 9.169 30.083
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