SKU: 30868109505

Barre acier rond 130 mm - 42CD4

Sale price$340.20 Regular price$378.00
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Description

Barre acier rond 130 mm - 42CD4Barre en acier rond 42CD4 La barre en acier rond 42CD4, galement connue sous la dsignation 42CrMo4 selon les normes europennes, est un acier faiblement alli au chrome et au molybdne. Rput pour sa haute rsistance mcanique, sa bonne trempabilit et sa tenacit remarquable, cet acier est largement utilis par les ingnieurs en mcanique, les constructeurs automobiles, les professionnels de l'aronautique et les artisans spcialiss dans la fabrication de pices

Barre en acier rond 42CD4

La barre en acier rond 42CD4, également connue sous la désignation 42CrMo4 selon les normes européennes, est un acier faiblement allié au chrome et au molybdène. Réputé pour sa haute résistance mécanique, sa bonne trempabilité et sa tenacité remarquable, cet acier est largement utilisé par les ingénieurs en mécanique, les constructeurs automobiles, les professionnels de l'aéronautique et les artisans spécialisés dans la fabrication de pièces mécaniques soumises à de fortes contraintes.

Applications concrètes de la barre en acier rond 42CD4

Grâce à ses propriétés mécaniques exceptionnelles, la barre en acier rond 42CD4 est idéale pour :

  • Arbres de transmission et essieux : assurant une transmission de puissance fiable grâce à une résistance élevée à la fatigue et une tenacité accrue.
  • Engrenages et pignons : garantissant une longévité supérieure et une résistance à l'usure dans des environnements exigeants.
  • Vilebrequins et bielles : offrant une stabilité dimensionnelle et une résistance aux chocs thermiques, essentielles pour les performances moteur.
  • Composants de machines industrielles : tels que les arbres de transmission, roues dentées et axes, soumis à des sollicitations mécaniques intenses.
  • Pièces de structure : utilisées dans les structures porteuses où la combinaison de résistance et de légèreté est un atout majeur.

Ces applications tirent parti de la combinaison unique de résistance, de ténacité et de durabilité offerte par l'acier 42CD4, le rendant indispensable pour les pièces soumises à des contraintes mécaniques sévères et nécessitant une fiabilité accrue.

Les avantages distinctifs de la nuance 42CD4

L'acier 42CD4 se distingue par :

  • Excellente trempabilité : permettant d'atteindre une dureté uniforme sur des sections épaisses, assurant une performance mécanique optimale même pour les pièces volumineuses.
  • Haute résistance à la traction : avec des valeurs comprises entre 750 et 1300 N/mm² après traitement thermique, garantissant une capacité à supporter des charges dynamiques importantes.
  • Tenacité remarquable : réduisant le risque de fissuration ou de rupture sous des charges d'impact, essentielle pour les applications critiques.
  • Bonne usinabilité : facilitant les opérations de tournage, fraisage et perçage, ce qui est avantageux pour la fabrication de pièces complexes.
  • Polyvalence d'utilisation : adapté à une large gamme d'applications industrielles nécessitant une combinaison de résistance, de durabilité et de performance sous contrainte.

En choisissant la barre en acier rond 42CD4, vous optez pour un matériau alliant résistance, ténacité et polyvalence, répondant aux exigences des applications mécaniques les plus rigoureuses.

Shipping Notes
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Exchange/Return Notes
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SKU: 30868109505

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4.3 ★★★★★
Based on 14 reviews
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Verified Purchase
Miriam Avila Sanchez
Charlottesville, US
★★★★★ 5
Needed for Sunday School
Color: Grey, Size: Wheel-6 Panel
This was purchase to divide two Sunday school children classes. It works wonderful, big enough, sturdy and with wheels, so is easy to move. Thanks God we can find everything in amazon.com. Delivery was fast and perfect. Thank you .
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Reviewed in the United States on December 6, 2024
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Verified Purchase
Melissa P
Whiting, US
★★★★★ 3
Not as tall as anticipated
Color: Black, Size: Wheel-6 Panel
Definitely not 6 feet tall, more like 5 1/2. Very sturdy and the fabric is thick. Works well for what we're using it for.
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Reviewed in the United States on November 30, 2025
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Verified Purchase
Vickie Dovel
Port Orchard, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
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Reviewed in the United States on December 17, 2025
A
Amazon Customer
Louisville, US
★★★★★ 5
Versatile Room Divider With Easy Assembly and Strong Coverage
Size: 3 Panel 12FT W
I picked up this Siebwin 3-panel folding room divider mainly for privacy and room separation, and overall it works very well. Assembly is very straightforward, and the divider can be set up, taken apart, and stored without much effort. The fabric quality feels good, and the frame construction is stronger and more stable than expected. The support tubes especially feel well built and help keep the divider standing securely. One feature I really liked is the flexibility of the design. The panels can be used together as a complete divider or separated depending on the setup and available space. That makes it much more versatile for different room layouts or temporary privacy needs. The coverage is also very good, and the size matches the manufacturer’s description accurately. The fabric blocks light and background visibility well enough to provide solid privacy without feeling overly heavy. The wider feet also help improve stability compared to thinner folding dividers. Another positive detail is that everything arrived complete with no missing parts or damaged pieces, which made assembly much easier and faster. Compared to cheaper privacy screens, this one feels more durable and easier to customize depending on the situation. In terms of value for the money, it feels like a very practical and worthwhile purchase considering the size, flexibility, and build quality. Overall, a versatile and well-built room divider with easy assembly, strong privacy coverage, stable construction, complete included parts, flexible panel configuration, and excellent everyday functionality.
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Reviewed in the United States on May 27, 2026
F
Fred
Cuba, US
★★★★★ 5
Stable, flexible in deployment configuration, creates true privacy and looks great.
Size: 3 Panel 12FT W
This is the second room divider panel I have installed, and there are several features about this one that I like much better than my older one. The fact that there are no gaps and that the material is thicker means you get more privacy or more hiding power, if you wish. My older divider has vertical spaces between each of the panels and the panels are half as wide as the Siebwin panels, so there are many vertical spaces. The Siebwin divider really creates privacy. Another feature that I really appreciate is that the legs are wider and stand off from the floor. On my older one the legs are flat and they're rather awkward to adjust because they create more drag on the floor. The feet on the older one also loosen if you turn them counter clockwise, so adjustments of configuration that require the feet to be moved are more complex. The older divider also must be deployed in a zig-zag fashion because he feet are not as wide, but this new one can be deployed and stable in a straight, an "N" shape or an arc. They are both the same length, but because the older one must be use in a zig-zag deployment it doesn't reach to the length of the new one. The Siebwin divider definitely costs more at $103.48, but it sports several features and advantages over the other brand, so it does a better job and is worth the extra cost.
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Reviewed in the United States on May 25, 2026

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