ASTM B127 is the standard specification for the nickel-copper alloy Monel 400 (UNS N04400) plate, sheet and strip. The Monel 400 material supplied by Metals-Piping can be either hot rolled or cold rolled which are further classified by thickness.
| Product | Thickness, T |
| Monel 400 hot-rolled plate | 3/16"(4.76 mm)and over |
| Monel 400 hot-rolled sheet | 0.018”≤T≤0.250”[0.46mm≤T≤6.4 mm] |
| Monel 400 cold-rolled sheet | 0.018”≤T≤0.250”[0.46mm≤T≤6.4 mm] |
| Monel 400 cold-rolled strip | 0.005”≤T≤0.250”[0.46mm≤T≤6.4 mm] |
*Materials with thickness 4.8 mm≤T≤6.4 mm may be furnished as sheet or plate.
*Materials with width W＜48″[1219 mm] shall be furnished as sheet or strip.
Chemical Composition Requirements
| Element | Content, % |
| Nickel [Ni] | ≥63.0 |
| Copper [Cu] | 28.0~34.0 |
| Iron [Fe] | ≤2.50 |
| Manganese [Mn] | ≤2.00 |
| Carbon [C] | ≤0.30 |
| Silicon [Si] | ≤0.50 |
| Sulfur [S] | ≤0.24 |
*All the values are for product analysis.
Mechanical Properties Requirements
| Mechanical Properties of Monel 400 Hot-Rolled Plate |
| Condition | Tensile Strength, min.
ksi [MPa] | Yield Strength, min.
ksi [MPa] | Elongation in 2”, min.
% |
| Annealed | 70 [485] | 28 [195] | 35 |
| As-Rolled | 75 [515] | 40 [275] | 25 |
*Stress relieving heat treatment shall be conducted on as-rolled plate.
| Mechanical Properties of Monel 400 Hot-Rolled Plate |
| Condition | Tensile Strength, min.
ksi [MPa] | Yield Strength, min.
ksi [MPa] | Elongation in 2”, min.
% |
| Annealed | 70 [485] | 28 [195] | 35 |
| As-Rolled | 75 [515] | 40 [275] | 25 |
*Yield strength requirements don’t apply to material under 0.51 mm in thickness.
| Mechanical Properties of Monel 400 Cold-Rolled Sheet |
| Condition | Tensile Strength, min.
ksi [MPa] | Yield Strength, min.
ksi [MPa] | Elongation in 2”, min.
% | Rockwell Hardness,
B |
| Annealed | 70~85 [485~585] | 28 [195] | 35 | - |
| Quarter-Hard | - | - | - | 73~83 |
| Half-Hard | - | - | - | 82~90 |
| Hard | 100[690] | 90[620] | 2 | - |
*Contact us to get the unspecified value in the table.
| Mechanical Properties of Monel 400 Cold-Rolled Strip |
| Condition | Tensile Strength, min.
ksi [MPa] | Yield Strength, min.
ksi [MPa] | Elongation in 2”, min.
% | Rockwell Hardness,
B |
| Annealed | 70~85 [485~585] | 28 [195] | 35 | - |
| Skin Hard | - | - | - | 68~73 |
| Quarter-Hard | - | - | - | 73~83 |
| Half-Hard | - | - | - | 82~90 |
| Three-Quarter-Hard | - | - | - | 89~94 |
| Hard | 100 [690] | 90 [620] | 2 | - |
| Spring Temper | - | - | - | ≥98 |
*Contact us to get the unspecified value in the table.
For cold rolled sheet and strip of deep-drawing and spinning quality, the Monel 400 material shall be furnished with corresponding grain size 3.5, 4.5, or 5.5 respectively depending on its specific thickness and width. The hardness shall not exceed 76 HRB.
