Monel 400 Round Bars are a nickel-copper alloy known for high strength, hardness and stiffness achieved through cold working processes that refine the alloy’s microstructure. This process not only enhances mechanical strength but also improves the surface finish of the bars.
Slightly magnetic at ambient temperature, Monel 400 exhibits excellent resistance to seawater, steam, salt, and caustic solutions making it highly reliable under corrosive and demanding conditions. While the alloy’s hardness and tensile strength increase, its ductility decreases, which is suitable for structural and engineering applications where strength is critical.
When you choose Monel 400 round bars from Unifit Metalloys, you benefit from 11+ years of metallurgical expertise, stringent quality control and adherence to international standards ensuring unmatched reliability and precision for your projects.
Request QuoteExtensive Stock of Monel 400 (ASTM B164 UNS N04400) Hex, Flat & Square Bars - Custom Sizes Available in India
Unifit Metalloys stands at the forefront of high-performance nickel-copper alloy production offering Monel 400 round bars that strictly comply with ASTM B164, ASME SB164 and UNS N04400 standards. These round bars are available in various diameters and lengths and can be supplied in different finishes such as hot-finished, cold-drawn or polished depending on the requirements. As a trusted partner for global industries, Unifit Metalloys serves marine, chemical processing, aerospace and industrial machinery sectors providing customized sizes, finishes and solutions to meet the most demanding applications. Our unwavering commitment to premium quality, timely delivery and competitive pricing reinforces our position as a preferred choice for engineers, fabricators and procurement specialists worldwide.
Complete Specification Chart of Monel 400 Round Bars
Monel 400, also known as ASTM B164 UNS N04400 or DIN 2.4068, is a nickel-copper alloy with exceptional corrosion resistance and high mechanical strength. Below is the complete specification chart for Monel 400 round bars:
|
Property |
Specification |
|---|---|
|
Alloy Name |
Monel 400 |
|
UNS Number |
N04400 |
|
DIN Number |
2.4360 / 2.4068 |
|
ASTM Standard |
B164 |
|
ASME Standard |
SB164 |
|
Finish |
Hot Rolled, Cold Drawn, Polished |
|
Condition |
Annealed, Cold Worked, Hardened |
|
Tolerances |
ISO 2768-m / As per standards |
Available Forms & Types of DIN 2.4068 Monel 400 Bars
Monel 400 bars are available in a variety of forms and types to meet different industrial requirements:
Monel 400 Bars & Rods Types
- Monel 400 Polish Round Bar
- Monel 400 Cold Drawn Bars
- Monel 400 Hexagonal Bar
- Monel 400 Forged Bars
- Monel 400 Threaded Bar
- Monel 400 Hollow Bars
- Monel 400 Black Bar
- Monel 400 Bright Round Bar
- Monel 400 Hexagon Bar
- Monel Alloy 400 Rods
- Monel 400 Forged Round Bar
- Monel 400 Half-Round Bar
- Monel 400 Triangle Bar
- Monel 400 Rectangular Bar
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Standard Lengths of ASTM B164 Monel 400 Round Bars
Monel 400 round bars, manufactured as per ASTM B164 and UNS N04400 standards are available in standard lengths of 3 meters, 4 meters and 6 meters. It can also be cut to custom lengths without compromising mechanical properties or corrosion resistance. Here’s a table showing the standard lengths of Monel 400 round bars across various diameters:
|
Diameter (mm) |
Standard Lengths (m) |
Notes |
|---|---|---|
|
3 - 10 |
3, 4, 6 |
Small diameter bars suitable for precision components |
|
11 - 50 |
3, 4, 6 |
Most commonly used industrial sizes |
|
51 - 100 |
3, 4, 6 |
Medium-sized bars for structural applications |
|
101 - 200 |
3, 4, 6 |
Large diameter bars; custom lengths available on request |
|
201 - 600 |
Custom lengths |
Extra-large bars for heavy-duty industrial or marine applications |
ISO & International Tolerances for Monel 400 Bars
Monel 400 bars are manufactured to meet ISO and international tolerance standards ensuring high precision and dimensional accuracy for critical industrial applications. The tolerance depends on the type of bar, diameter and surface finish:
|
Type of Bar |
Sizes (mm) |
Sizes (Inches) |
ISO Tolerance |
|---|---|---|---|
|
Monel UNS N04400 Cold Drawn and Polished Round Bar |
3.00 - 75.00 |
1/8″ - 3.00″ |
h8 - h9 - h10 - h11 |
|
Monel 400 Cold Drawn and Ground Bar |
10.00 - 75.00 |
5/16″ - 2.50″ |
h8 - h9 - h10 - h11 |
|
400 Monel Peeled and Polished Round Bar |
40.00 - 150.00 |
1.50″ - 6.00″ |
h11, h11-DIN 1013 |
|
Monel Alloy 400 Peeled and Ground Bar |
20.00 - 50.00 |
3/4″ - 2.00″ |
h9 - h10 - h11 |
International Standards for DIN 2.4068 Monel 400 Square Bars
Monel 400 square bars are manufactured to meet DIN 2.4068 standards which ensure global compatibility, consistent quality and precise dimensional accuracy. These international standards define size ranges, tolerances and mechanical properties for industrial applications:
|
Standard of Monel 400 |
Country / Organization |
|---|---|
|
AMS 4675 |
USA (Aerospace Materials Specification) |
|
AMS 4730 |
USA (Aerospace Materials Specification) |
|
AMS 4731 |
USA (Aerospace Materials Specification) |
|
VdTUV 263 |
Germany |
|
ASTM B164 |
USA (ASTM International) |
|
DIN 17753 |
Germany |
|
UNS N04400 |
USA (Unified Numbering System) |
|
QQ-N-281 |
USA / Military Standard |
|
BS3076NA13 |
UK (British Standard) |
|
ASM 4731 |
USA (ASM International) |
Mechanical Properties of Monel 400 (ASME SB164 UNS N04400) Rods
Understanding these properties helps engineers and fabricators select the right Monel 400 rod for specific industrial or structural requirements. The key mechanical properties of Monel 400 rods are summarized in the table below:
|
Property |
Value |
|---|---|
|
Density |
8.89 g/cm³ |
|
Specific Gravity |
8.89 |
|
Magnetic Property |
Slightly magnetic at ambient temperature |
|
Tensile Strength |
550 MPa |
|
Yield Strength |
240 MPa |
|
Elongation |
40% |
|
Hardness |
Rockwell B 85-95 |
Chemical Composition of UNS N04400 Monel 400 Bars
Understanding the chemical makeup of Monel 400 is crucial for engineers, fabricators, and buyers to ensure the material meets specific performance and regulatory requirements. The detailed chemical composition of Monel 400 bars is as follows:
Inconel Tube Plug Sizing Chart
|
Element |
Composition (%) |
|---|---|
|
Nickel (Ni) |
63 min |
|
Copper (Cu) |
28-34 |
|
Iron (Fe) |
2.5 max |
|
Manganese (Mn) |
2 max |
|
Silicon (Si) |
0.5 max |
|
Carbon (C) |
0.3 max |
|
Sulfur (S) |
0.024 max |
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Strength & Thermal Properties of UNS N04400 Bright Bars
Understanding the thermal and strength properties of Monel 400 bars is essential for engineers and fabricators when designing components for industrial applications. The key strength and thermal properties of Monel 400 bright bars are summarized in the table below:
|
Property |
Value |
|---|---|
|
Melting Range |
1350-1400°C |
|
Thermal Conductivity |
21.9 W/m·K |
|
Coefficient of Thermal Expansion |
13.3 μm/m°C |
|
Tensile Strength (Cold-Worked) |
Up to 690 MPa |
|
Yield Strength (Cold-Worked) |
Up to 380 MPa |
|
Hardness (Cold-Worked) |
Rockwell B 95-105 |
|
Corrosion Resistance |
Excellent |
Strength & Thermal Properties of UNS N04400 Bright Bars
Understanding the thermal and strength properties of Monel 400 bars is essential for engineers and fabricators when designing components for industrial applications. The key strength and thermal properties of Monel 400 bright bars are summarized in the table below:
|
Property |
Value |
|---|---|
|
Melting Range |
1350-1400°C |
|
Thermal Conductivity |
21.9 W/m·K |
|
Coefficient of Thermal Expansion |
13.3 μm/m°C |
|
Tensile Strength (Cold-Worked) |
Up to 690 MPa |
|
Yield Strength (Cold-Worked) |
Up to 380 MPa |
|
Hardness (Cold-Worked) |
Rockwell B 95-105 |
|
Corrosion Resistance |
Excellent |
Cold Drawn Monel Alloy 400 Round Bar Tolerances
Cold drawn Monel 400 round bars are manufactured to precise dimensional tolerances to ensure perfect fit, high structural integrity, and reliable performance in critical applications. The cold drawing process enhances strength and surface finish, but it also requires strict tolerance control for round, square, hexagon, and flat bars. The table below provides the permissible variations for different shapes and sizes of Monel Alloy 400 bars:
|
Shape |
Size (mm) |
Permitted Variation (mm) |
|---|---|---|
|
Flat (WT) |
< 18 |
+0 to -0.110 |
|
>18 ≤ 30 |
+0 to -0.130 |
|
|
>30 ≤ 50 |
+0 to -0.250 |
|
|
>50 ≤ 80 |
+0 to -0.350 |
|
|
Round |
≥6 ≤ 18 |
+0 to -0.070 |
|
>18 ≤ 30 |
+0 to -0.085 |
|
|
>30 ≤ 50 |
+0 to -0.100 |
|
|
>50 ≤ 80 |
+0 to -0.120 |
|
|
>80 ≤ 100 |
+0 to -0.140 |
|
|
Square / Hexagon |
≥6 ≤ 18 |
+0 to -0.090 |
|
>18 ≤ 30 |
+0 to -0.110 |
|
|
>30 ≤ 50 |
+0 to -0.130 |
|
|
>50 ≤ 80 |
+0 to -0.160 |
|
|
>80 ≤ 105 |
+0 to -0.250 |
|
|
Flat (Width) |
< 18 |
+0 to -0.110 |
|
>18 ≤ 30 |
+0 to -0.130 |
|
|
>30 ≤ 50 |
+0 to -0.160 |
|
|
>50 ≤ 80 |
+0 to -0.190 |
|
|
>80 ≤ 100 |
+0 to -0.220 |
|
|
>100 ≤ 130 |
+0 to -0.350 |
|
|
>130 ≤ 160 |
+0 to -1.00 |
|
|
>160 ≤ 320 |
±1.00 |
Full Size Range of Monel 400 Round Bars in India
Monel 400 round bars are available in various diameters, lengths and specifications suitable for multiple industrial applications. Below is a detailed overview of the available sizes and types:
|
Description |
Diameter (inch / mm) |
Shape |
Specification |
|---|---|---|---|
|
ALLOY 400 COLD DRAWN SR |
1.2500 in / 31.75 mm |
Round Bar / Rod |
WN221 |
|
ALLOY 400 HOT FINISHED ANNEALED |
0.7500 in / 19.05 mm |
Round Bar / Rod |
ASTM B164 / ASME SB164 |
|
ALLOY 400 HOT FINISHED ANNEALED |
1.0000 in / 25.40 mm |
Round Bar / Rod |
ASTM B164 / ASME SB164 |
|
ALLOY 400 HOT FINISHED ANNEALED |
1.5000 in / 38.10 mm |
Round Bar / Rod |
ASTM B164 / ASME SB164 |
|
ALLOY 400 HOT FINISHED ANNEALED |
1.7500 in / 44.45 mm |
Round Bar / Rod |
ASTM B164 / ASME SB164 |
|
ALLOY 400 HOT FINISHED ANNEALED |
2.0000 in / 50.80 mm |
Round Bar / Rod |
ASTM B164 / ASME SB164 |
|
ALLOY 400 HOT FINISHED ANNEALED |
3.5000 in / 88.90 mm |
Round Bar / Rod |
ASTM B164 / ASME SB164 |
Monel 400 Square & Hex Bars: Dimensions & Charts
Monel 400 square and hex bars are manufactured in a wide range of sizes to meet the demands of various industries. These bars conform to ASTM, US, Japanese and metric standards, ensuring compatibility and interchangeability in global projects.
|
Metric Size (mm) |
US Bar Size |
US Diameter (inch) |
ASTM / Canadian |
Japanese Size (mm²) |
Japanese Diameter (mm) |
|---|---|---|---|---|---|
|
5 |
#2 |
0.250 |
10M |
100 |
6 |
|
5.5 |
#3 |
0.375 |
15M |
200 |
10 |
|
6 |
#4 |
0.500 |
20M |
300 |
13 |
|
7 |
#5 |
0.625 |
25M |
500 |
16 |
|
8 |
#6 |
0.750 |
30M |
700 |
19 |
|
9 |
#7 |
0.875 |
35M |
1000 |
22 |
|
10 |
#8 |
1.000 |
45M |
1500 |
25 |
|
11 |
#9 |
1.125 |
55M |
2500 |
29 |
|
12 |
#10 |
1.250 |
– |
– |
32 |
|
14 |
#11 |
1.375 |
– |
– |
35 |
|
16 |
#12 |
1.500 |
– |
– |
38 |
|
18 |
#13 |
1.625 |
– |
– |
41 |
|
20 |
#14 |
1.750 |
– |
– |
44 |
|
22 |
#15 |
1.875 |
– |
– |
48 |
|
25 |
#16 |
2.000 |
– |
– |
51 |
|
28 |
#18 |
2.250 |
– |
– |
57 |
|
32 |
– |
– |
– |
– |
– |
|
36 |
– |
– |
– |
– |
– |
|
40 |
– |
– |
– |
– |
– |
|
44 |
– |
– |
– |
– |
– |
|
50 |
– |
– |
– |
– |
– |
Standard Metric Sizes and Weights of Monel 400 Flat Bars
Monel 400 flat bars are available in a variety of widths, thicknesses, and standard lengths, making them suitable for fabrication, machining and structural components. Below are the standard sizes:
|
Width (mm) |
Thickness (mm) |
Weight per Metre (kg) |
Standard Length (m) |
Colour Code |
|---|---|---|---|---|
|
10 |
3 |
0.24 |
6.0 |
Blue |
|
13 |
3 |
0.31 |
6.0 |
Blue |
|
13 |
5 |
0.46 |
6.0 |
Orange |
|
16 |
3 |
0.38 |
6.0 |
Blue |
|
16 |
5 |
0.64 |
6.0 |
Orange |
|
16 |
8 |
1.03 |
6.0 |
Red |
|
20 |
3 |
0.48 |
6.0 |
Blue |
|
20 |
5 |
0.81 |
6.0 |
Orange |
|
20 |
6 |
0.97 |
6.0 |
White |
|
20 |
10 |
1.61 |
6.0 |
Yellow |
|
25 |
3 |
0.60 |
6.0 |
Blue |
|
25 |
5 |
1.01 |
6.0 |
Orange |
|
25 |
6 |
1.21 |
6.0 |
White |
|
25 |
8 |
1.61 |
6.0 |
Red |
|
25 |
10 |
2.01 |
6.0 |
Yellow |
|
25 |
12 |
2.41 |
6.0 |
Pink |
|
32 |
3 |
0.77 |
6.0 |
Blue |
|
32 |
5 |
1.29 |
6.0 |
Orange |
|
32 |
6 |
1.55 |
6.0 |
White |
|
32 |
8 |
2.06 |
6.0 |
Red |
|
32 |
10 |
2.58 |
6.0 |
Yellow |
|
32 |
12 |
3.09 |
6.0 |
Pink |
|
40 |
3 |
0.97 |
6.0 |
Blue |
|
40 |
5 |
1.61 |
6.0 |
Orange |
|
40 |
6 |
1.93 |
6.0 |
White |
|
40 |
8 |
2.58 |
6.0 |
Red |
|
40 |
10 |
3.22 |
6.0 |
Yellow |
|
40 |
12 |
3.86 |
6.0 |
Pink |
|
40 |
16 |
5.15 |
6.0 |
Grey |
|
40 |
20 |
6.14 |
6.0 |
Green |
|
50 |
3 |
1.21 |
6.0 |
Blue |
|
50 |
5 |
2.01 |
6.0 |
Orange |
|
50 |
6 |
2.41 |
6.0 |
White |
|
50 |
8 |
3.22 |
6.0 |
Red |
|
50 |
10 |
4.02 |
6.0 |
Yellow |
|
50 |
12 |
4.83 |
6.0 |
Pink |
|
50 |
16 |
6.44 |
6.0 |
Grey |
|
50 |
20 |
8.05 |
6.0 |
Green |
|
50 |
25 |
10.1 |
6.0 |
Purple |
Note: Flat bars are also available in larger widths up to 300 mm and thickness up to 50 mm, with standard lengths of 3 m, 4 m and 6 m depending on customer requirements. Colour codes are used for easy identification during inventory handling.
Cold Drawn, Hot Rolled and Polished Finishes of Monel 400
Monel 400 round bars are offered in multiple finishes to suit various industrial, structural and marine applications. Each finish provides specific mechanical properties, surface smoothness, and corrosion resistance helping engineers select the most suitable bar for their needs:
|
Abbreviation |
Finish Type |
Abbreviation |
Finish Type |
|---|---|---|---|
|
P |
Polished |
HRAP |
Hot Rolled Annealed-Pickled |
|
CD |
Cold Drawn |
CF |
Cold Finished |
|
HF |
Hot Finished |
PR |
Peeled-Reeled |
|
CG |
Centreless Ground |
ST |
Smooth Turned |
|
SRE |
Slit Rolled Edge |
RT |
Rough Turned |
|
BD |
Bright Drawn |
P&T |
Peeled-Turned |
Applications of Monel 400 Round Bars
Monel 400 round bars are highly versatile nickel-copper alloy bars used in environments that demand excellent corrosion resistance and high strength. Their applications include:
- Marine equipment
- Chemical processing
- Aerospace & power
- Industrial machinery
- Oil & gas equipment and many more
Get the Best Prices for Monel 400 Round Bars
Looking for high-quality Monel 400 round bars at competitive prices? Get instant quotes and custom pricing tailored to your required size, finish and quantity. Ensure you are sourcing premium UNS N04400 material for your applications without compromising on quality.
Request QuoteLeading Manufacturer, Supplier & Exporter of Monel 400 Round Bars
Unifit Metalloys is a pioneer in high-performance nickel-copper alloy production, offering Monel 400 round bars that strictly adhere to ASTM B164, ASME SB164, and UNS N04400 standards. With decades of expertise, we ensure exceptional quality, unmatched durability and precise tolerances, setting the industry benchmark for reliability and performance.
As a trusted global partner, Unifit Metalloys provides customized sizes, finishes and solutions with a commitment to premium quality, timely delivery and competitive pricing. Our meticulous manufacturing process and consistent standards make us the preferred choice for engineers, fabricators, and procurement specialists worldwide.
Choose Unifit Metalloys for Monel 400 round bars where precision, strength and reliability is the top priority.
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Monel 400 Forged Bar, ASME SB 164 Monel 400 Rectangle Bar, Monel 400 Flat Bars, DIN 2.4360 Round Bars, Monel Alloy 400 Bright Bar in Mumbai, India.