What is Monel 400 round bar?

Monel 400 round bar is the rod-form product of the nickel-copper alloy UNS N04400 supplied to ASTM B164. It ships in hot-worked or cold-worked condition, 6 mm to 200 mm diameter, 3 m to 6 m length, with EN 10204 type 3.1 or 3.2 mill test certificate. Round bar is the input stock for bolts, stud bolts, anchor bolts, valve stems, pump shafts and machined components in HF acid, sour service and marine duty.

What sizes of Monel 400 round bar are available?

TorqBolt stocks Monel 400 round bar from 6 mm to 200 mm diameter ex Mumbai. Standard lengths are 3 m and 6 m random; saw-cut to drawing on indent. Surface options: black bar (hot-worked mill), peeled, centreless ground, polished and bright drawn. Diameter tolerance follows ASTM B164; tighter h9 or h11 tolerance on indent.

Is Monel 400 round bar stocked in the annealed condition?

Yes. ASTM B164 covers UNS N04400 rod and bar in three conditions: hot-worked (as worked or stress-relieved), cold-worked (as worked or stress-relieved) and annealed. Hot-worked annealed rod is the default stock for bolt manufacture and machined components; cold-worked stress-relieved rod ships where higher yield is needed for pump shafts and valve stems.

What standard governs Monel 400 round bar?

ASTM B164 is the governing specification for UNS N04400 (Monel 400) rod, bar and wire. Companion standards: ASTM B564 for forged flanges from the same heat, ASTM F468 for the finished bolt rolled from B164 stock, NACE MR0175 / ISO 15156-3 for sour service hardness ceilings, EN 10204 for the mill test certificate. DIN 17743 covers the European wrought-product equivalent.

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Rond Monel 400 — UNS N04400 selon ASTM B164

Le rond Monel 400 (UNS N04400) selon ASTM B164 pour ébauches de boulons, arbres de pompe, tiges de soupape et composants usinés. Diamètres 5 mm à 300 mm, étiré à froid ou laminé à chaud.

Composition chimique

Élément	Plage (% en poids)
Nickel (Ni)	63 min
Copper (Cu)	28 - 34
Iron (Fe)	2.5 max
Manganese (Mn)	2.0 max
Silicon (Si)	0.50 max
Carbon (C)	0.30 max

Propriétés mécaniques

Propriété	Valeur (min)
Tensile / Zugfestigkeit / Carico rottura / Résistance traction	70 ksi / 485 MPa
0.2% yield	28 ksi / 195 MPa
Elongation	35%
Hardness HRB	60-80

Applications

Ébauches boulons et vis
Arbres pompe marins + chimiques
Tiges de soupape
Tirants faisceaux échangeurs
Composants usinés

Normes

ASTM B164
ASME SB-164
EN 10204 3.1/3.2
ASTM F468 (downstream)

Questions fréquentes

Devis en 24h avec certification EN 10204 3.1 ou 3.2.

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Rond Monel 400 — UNS N04400 selon ASTM B164

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