Specifications
Surface Treatments
Certifications
- ISO 9001 - 2015 Certified
- PED 2014/68/EC
- NACE MR0175/ISO 15156-2
- NORSOK M-650
- DFAR
- MERKBLATT AD 2000 W2/W7/W10
ASTM B127 - Monel 400 / UNS N04400 Plate, Sheet & Strip Specification
ASTM B127 (also ASTM B127 Monel 400, ASTM B127 N04400, ASTM B127 plate, ASTM B127 sheet, ASTM B127 strip) is the Standard Specification for Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip. The grade is the nickel-copper solid-solution alloy trade-named Monel 400, registered as UNS N04400, Werkstoff 2.4360, DIN 17743 NiCu30Fe. Monel® is a registered trademark of Special Metals Corporation; TorqBolt is not authorized by, affiliated with or endorsed by Special Metals. ASTM B127 sits in a five-spec family with ASTM B164 (rod, bar, wire), ASTM B165 (pipe, tube), ASTM B564 (forgings, flanges) and ASTM F468 (bolts); chemistry identical, form changes. TorqBolt supplies B127 plate, sheet and strip ex-Mumbai against heat-numbered chemistry and EN 10204 type 3.1 or 3.2 MTC.
Scope of ASTM B127
ASTM B127 covers UNS N04400 in three flat product forms separated by thickness and width. The chemistry bracket and the wrought-and-annealed metallurgical state are common; the form name follows the cross-section.
| Form | Thickness | Width | Typical Process |
|---|---|---|---|
| Plate | 4.75 mm (3/16 in) and over | Any | Hot-rolled, annealed, pickled |
| Sheet | Under 4.75 mm (3/16 in) | 610 mm (24 in) and over | Cold-rolled, annealed, pickled |
| Strip | Under 4.75 mm (3/16 in) | Under 610 mm (24 in) | Cold-rolled, annealed, pickled |
The thickness break at 4.75 mm separates plate from sheet and strip; the width break at 610 mm separates sheet from strip. The same N04400 heat can be processed into all three forms; only the mill route changes.
Chemistry per ASTM B127
ASTM B127 holds the UNS N04400 bracket against B164, B165, B564 and F468. Cobalt is counted as nickel. Detail is on the chemical composition page.
| Element | ASTM B127 (UNS N04400) | Typical |
|---|---|---|
| Nickel + Cobalt | 63.0 - 70.0 | 66.0 |
| Copper | 28.0 - 34.0 | 31.5 |
| Iron | 2.5 max | 1.5 |
| Manganese | 2.0 max | 1.0 |
| Carbon | 0.30 max | 0.15 |
| Silicon | 0.50 max | 0.20 |
| Sulphur | 0.024 max | 0.010 |
Mechanical Properties per ASTM B127
ASTM B127 plate, sheet and strip ship in the annealed condition. The anneal solution-softens the nickel-copper FCC matrix; see Monel 400 mechanical properties.
| Property | Plate (Annealed) | Sheet / Strip (Annealed) |
|---|---|---|
| Tensile strength, min | 70 ksi (483 MPa) | 70 ksi (483 MPa) |
| Yield strength (0.2 percent offset), min | 28 ksi (193 MPa) | 28 ksi (193 MPa) |
| Elongation in 2 in (50 mm), min | 35 percent | 35 percent |
| Rockwell hardness | B60 to B80 typical | B60 to B80 typical |
| Condition supplied | Hot-rolled, annealed, pickled | Cold-rolled, annealed, pickled |
The 28 ksi yield separates annealed N04400 from precipitation-hardened Monel K-500 (UNS N05500), which reaches 90 to 130 ksi but is not supplied under B127. Plate is hot-rolled above 1093 degrees Celsius and solution-annealed; sheet and strip are cold-rolled between intermediate anneals and finish-annealed. Annealing is the only heat treatment available to N04400 (no aluminium, no titanium, no age-hardening response). See heat treatment.
Certification - EN 10204 Type 3.1 vs 3.2
Every B127 plate, sheet or strip lot ships against a heat number stamped on the parent ingot and reported on the mill certificate.
| MTC Type | Witness | Typical Use |
|---|---|---|
| EN 10204 type 3.1 | Mill QA, independent of production | Standard commercial B127 plate / sheet / strip |
| EN 10204 type 3.2 | Mill QA plus independent third party (TUV, Lloyds, BV, DNV) | NACE MR0175 sour service, PED 2014/68/EC pressure equipment, NORSOK, nuclear |
The MTC reports actual cast chemistry against the B127 bracket, tensile, yield, elongation, hardness and the heat-lot relation. On arrival, handheld XRF PMI confirms approximately 65 percent nickel and 31 percent copper, with chromium and aluminium below detection.
Related TorqBolt Forms and Standards
Product forms: Monel 400 plate, Monel 400 sheet, Monel 400 forgings, Monel 400 round bar, Monel 400 tubing, Monel 400 seamless pipe, Monel 400 flanges.
Properties: chemical composition, mechanical properties, density, heat treatment, welding, corrosion resistance.
Sister standards: B164, B165, B163, B564, F468, F467, DIN 17743, UNS N04400, NACE MR0175.
Frequently Asked Questions
What does ASTM B127 cover? ASTM B127 is the Standard Specification for Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip. The grade is Monel 400. Sister specs in the family: B164 (rod, bar, wire), B165 (pipe, tube), B564 (forgings), F468 (bolts).
What is the thickness break between plate, sheet and strip in B127? Plate is 4.75 mm (3/16 in) and over. Sheet is under 4.75 mm and 610 mm wide and over. Strip is under 4.75 mm thick and under 610 mm wide.
What is the supply condition for B127 Monel 400? Annealed. Plate is hot-rolled, annealed and pickled. Sheet and strip are cold-rolled, annealed and pickled. There is no age-hardening response on N04400.
What MTC is required for B127 procurement? EN 10204 type 3.1 is the commercial default. EN 10204 type 3.2 (independent witness) is required for NACE MR0175 sour service, PED 2014/68/EC, NORSOK and nuclear orders.
Request a Quote
For ASTM B127 Monel 400 plate, sheet or strip against UNS N04400 chemistry and the annealed mechanical bracket above, send drawing, thickness, width, length, quantity and certification class (EN 10204 type 3.1 or 3.2) to info@torqbolt.com or WhatsApp +91-22-66157017. Ex-Mumbai price plus heat-numbered MTC inside one working day. Domestic India 3 to 7 working days; export through JNPT.
References:
- ASTM B127 Standard Specification for Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip
- ASTM B164 Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire
- ASTM B165 Standard Specification for Nickel-Copper Alloy Seamless Pipe and Tube
- ASTM B564 Standard Specification for Nickel Alloy Forgings, Table 1, UNS N04400 Class A
- ASTM F468 / F468M Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs
- EN 10204 Metallic products - Types of inspection documents
- DIN 17743 Wrought Nickel-Copper Alloys, NiCu30Fe, Werkstoff 2.4360
- NACE MR0175 / ISO 15156-3 Materials for H2S-containing environments in oil and gas production
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