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Description
Barre acier rond 35 mm - 40CMD8Barre en acier rond 40CMD8 La barre en acier rond 40CMD8, galement connue sous la dsignation 40CrMnMoS8 6 ou 1. 2312, est un acier faiblement alli au chrome, manganse, molybdne et enrichi en soufre pour amliorer son usinabilit. Apprci pour sa bonne rsistance mcanique, sa stabilit dimensionnelle et sa facilit d'usinage, cet acier est largement utilis par les outilleurs, les moulistes, les ingnieurs en mcanique et les artisans spcialiss dans la
Barre en acier rond 40CMD8
La barre en acier rond 40CMD8, également connue sous la désignation 40CrMnMoS8-6 ou 1.2312, est un acier faiblement allié au chrome, manganèse, molybdène et enrichi en soufre pour améliorer son usinabilité. Apprécié pour sa bonne résistance mécanique, sa stabilité dimensionnelle et sa facilité d'usinage, cet acier est largement utilisé par les outilleurs, les moulistes, les ingénieurs en mécanique et les artisans spécialisés dans la fabrication de moules et d'outillages de haute précision.
Applications concrètes de la barre en acier rond 40CMD8
Grâce à ses propriétés spécifiques, la barre en acier rond 40CMD8 est idéale pour :
- Moules pour matières plastiques : offrant une bonne polissabilité et une stabilité dimensionnelle essentielle pour des productions de pièces plastiques de haute qualité.
- Outillages pour le travail à froid : tels que les matrices d'estampage, poinçons et outils de découpe, où la résistance à l'usure et la durabilité sont primordiales.
- Composants de machines : comme les plateaux, supports et guides, nécessitant une bonne usinabilité pour des fabrications précises et efficaces.
- Pièces nécessitant une nitruration : afin d'augmenter la dureté superficielle tout en conservant une bonne ténacité à cœur, idéal pour les arbres et axes soumis à des contraintes élevées.
Ces applications tirent parti de la combinaison unique de résistance, de facilité d'usinage et de stabilité offerte par l'acier 40CMD8, le rendant indispensable pour les outillages et moules de haute précision.
Les avantages distinctifs de la nuance 40CMD8
L'acier 40CMD8 se distingue par :
- Excellente usinabilité : grâce à l'addition de soufre (environ 0,07%), facilitant les opérations d'usinage par enlèvement de copeaux et réduisant l'usure des outils.
- Bonne résistance mécanique : avec une dureté d'utilisation autour de 32 HRC à l'état de livraison, pouvant atteindre jusqu'à 50 HRC après traitement thermique, assurant une longévité accrue des pièces fabriquées.
- Stabilité dimensionnelle : minimisant les déformations lors des traitements thermiques, essentielle pour les outillages nécessitant une précision élevée.
- Aptitude à la nitruration : permettant d'obtenir une dureté superficielle élevée tout en conservant une bonne ténacité à cœur, augmentant ainsi la résistance à l'usure des pièces.
- Polissabilité : offrant une surface lisse et de haute qualité, indispensable pour les moules destinés à la production de pièces plastiques avec une finition impeccable.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
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4.1 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 4
If you're looking for a budget-friendly option for everyday printing, this is a solid choice.
Size: 1 Ream | 500 Sheets, Style: Letter (8.5x11)
Let's be honest, reviewing copy paper isn't exactly thrilling. But,et's be honest, reviewing copy paper isn't exactly thrilling. But, if you're buying paper, you expect it to, well, work like paper. And in that regard, the Amazon Basics Multipurpose Copy Paper delivers. It works as paper should.
That's really the core of it. This paper is functional. It's the kind of paper you buy when you need a lot of it without breaking the bank. Here's a quick breakdown:
Pros:
Affordable: This is the biggest selling point. If you're looking for a budget-friendly option for everyday printing, this is a solid choice.
Good for High-Volume Printing: Because of its affordability, it's great for those situations where you're churning out documents and don't want to worry about the cost per page.
Works in Most Printers: I've used it in inkjet and laser printers without any major issues. It's generally reliable in terms of feeding and printing.
Acceptable Brightness: It's not the brightest white paper on the market, but it's acceptable for most general-purpose printing.
Cons:
Not Premium Quality: Don't expect a luxurious feel or exceptionally crisp print quality. It's not designed for high-resolution photos or important presentations.
Can Be a Little Thin: Compared to more expensive paper, it can feel a bit thinner. This might lead to slight show-through if you're printing heavily on both sides.
Packaging Can Sometimes Be Damaged: While not always the case, some users have reported damaged packaging upon delivery. This hasn't affected the paper itself in my experience, but it's something to be aware of.
Overall:
The Amazon Basics Multipurpose Copy Paper is a reliable and affordable option for everyday printing needs. It's not fancy, but it gets the job done. If you're looking for premium quality, look elsewhere. But if you just need a lot of paper, that works as paper should, and at a good price, this is a worthwhile choice.
That's really the core of it. This paper is functional. It's the kind of paper you buy when you need a lot of it without breaking the bank. Here's a quick breakdown:
Pros:
Affordable: This is the biggest selling point. If you're looking for a budget-friendly option for everyday printing, this is a solid choice.
Good for High-Volume Printing: Because of its affordability, it's great for those situations where you're churning out documents and don't want to worry about the cost per page.
Works in Most Printers: I've used it in inkjet and laser printers without any major issues. It's generally reliable in terms of feeding and printing.
Acceptable Brightness: It's not the brightest white paper on the market, but it's acceptable for most general-purpose printing.
Cons:
Not Premium Quality: Don't expect a luxurious feel or exceptionally crisp print quality. It's not designed for high-resolution photos or important presentations.
Can Be a Little Thin: Compared to more expensive paper, it can feel a bit thinner. This might lead to slight show-through if you're printing heavily on both sides.
Packaging Can Sometimes Be Damaged: While not always the case, some users have reported damaged packaging upon delivery. This hasn't affected the paper itself in my experience, but it's something to be aware of.
Overall:
The Amazon Basics Multipurpose Copy Paper is a reliable and affordable option for everyday printing needs. It's not fancy, but it gets the job done. If you're looking for premium quality, look elsewhere. But if you just need a lot of paper, that works as paper should, and at a good price, this is a worthwhile choice.
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Reviewed in the United States on April 27, 2025
★★★★★ 5
Reliable Everyday Printer Paper
Size: 1 Ream | 500 Sheets, Style: Letter (8.5x11)
This is standard plain printer paper for everyday home use, and it does exactly what it’s supposed to do without any issues. I have had no problems with paper jams, ink smudging, or feeding through the printer.
The paper is an average thickness, nothing special, but perfectly fine for printing documents. The color is white. It does not curl, and everything comes out clean and readable. It does not stand out in any particular way, but there is also nothing to complain about. Overall, it is reliable, consistent, and works well for regular home printing needs. I will buy again.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Good price. Good paper.
Size: 8 Reams | 4000 Sheets, Style: Letter (8.5x11)
I feel like I have purchased this paper a hundred times. I have it on subscription. It works great in all my printers.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Love it.
Style: Ink
I love my epson workforce printer. I used to be a Canon person but once I got this printer. It changed my mind. So the ink is worth it. Especially in the bundle package. It may be a bit on the pricey side but it last me awhile. At least, in my opinion, it’s less expensive than buying them separately. Epson makes great stuff and glad I chose to stick with them. The ink is very good and looks great after it prints. Thanks to Epson for functionality, cost and efficiency when it comes you your products.
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Reviewed in the United States on November 10, 2025
★★★★★ 5
Epson Ink for the win
Style: Ink
Love my epson printer and that I can order the ink just about anywhere. Ink is of good quality and depending on the amount you print, it seems to last a decent amount of time.
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Reviewed in the United States on April 28, 2026