High Quality 1.4025 / SUS440f / S44020 Stainless Steel Round Bar

• Customization: Available
• Type: Stainless Steel Bars
• Standard: ASTM, AISI, GB, JIS, DIN
• Model NO.: 1.4025 / SUS440F / S44020
• Certification: ISO
• Shape: According to Order
• Technique: According to Order
• Surface Treatment: Black Surface / Turned Surface
• Tolerance: OEM & ODM
• Processing Services: Welding, Punching, Cutting, Bending, Uncoiling
• Hardness: After Annealing or Not Annealing
• MOQ: 3 Ton (Negotiable)
• Price: to Be Confirmed Based on Order Details
• Transport Package: Standard Packaging
• Specification: According to order
• Trademark: ZEICIN
• Origin: China

Product Description

 

Product Description

 

1.4025 SUS440F Y108Cr17 S44020 Stainless Steel

440F stainless steel is a high-carbon martensitic stainless steel meant to provide improved machinability and corrosionresistance. An excellent choice for applications where good hardness, wear resistance, and moderate corrosion resistance are required. 440F has a very high sulfur content which aids in machinability, therefore, it is useful for precision machining and automated work processes, and has better machinability than other steels in the 440 series.

Similar Grade

Execution standard	ZEICIN Grade	GB	ASTM	JIS	DIN
GB	SUS440F	Y108Cr17 (Y11Cr17)	S44020/440F	SUS440F	1.4025

 

Main chemical composition %

C	Cr	Mn	Si	Mo	V
0.95~1.20	16.00~18.00	≤1.25	≤1.00	≤0.75	-
Co	S	P	Ni	Nb	W
-	≥0.15	≤0.06	≤0.60	-	-

  
   

Heat Treatment of SUS440F

Heat Treatment	Temperature	Procedure	Effect
Annealing	843~871°C	Soak at this temperature, furnace cool	Reduces hardness,improves machinability
Tempering	179~177°C	Soak for 1 hour this temperature	Achieves minimumu hardness of Rc 56
Hardening	1010~1066°C	Soak at this temperature, air cool or warm oil quench	Increases hardness and strength enhances wear resistance

• Key Features 

1)Top Machinability

The increased sulfur content improves machinability and makes it ideal for machining complex components.

2)Steady Hardness

Provides uniform hardness via heat treatment in controlled conditions to meet stringent industrial requirements.

3)Enhanced Wear Resistance

Offers outstanding durability, particularly for high-friction and abrasive conditions.

4)Good Corrosion Resistance

Effective up to a point in mildly corrosive environments, like indoor or dry applications.
 

Our Advantages

Our Advantage
 

• Special Honor :

We are proud to be a participant in the National Key Research and Development Plan of the 13th Five-Year Plan, focusing on"High-Performance Die steel and its Application." Our involvement in this prestigious program reflects our commitment to innovation and excellence.

 

• Technical Force:

 

We took advanced technology specially developed with Shanghai University and Beijing Iron and Steel Research Institute in the production of stainless steel. This combination provides for high hardness, wear resistance, and superior machinability .Combined with our proprietary heat treatment and forging processes,440F stainless steel becomes finely suited for precision applications.

 

 

• Raw material supply:

We maintain a robust supply chain to ensure the consistent availability of high-performance stainless steel materials like 440FOur products are available in both standard and custom sizes, catering to various industrial needs.



Why choose us?

We adhere to the principles of honesty and integrity, committed to providing high-quality 9Cr18Mo stainless steel products and services:

1. Unmatched Quality:
440F stainless steel is at least equal to or superior to the performance of European, American, and Japanese brands.
Each batch is thoroughly quality-tested to ensure the utmost reliability and performance.

2. Competitive Pricing:
Our 440F stainless steel has a higher cost-performance ratio than many international suppliers, so our customers always get high cost-performance.

3. Flexible Delivery:
A smooth production cycle allows for the flexibility for regular and express orders. Typical lead time is about 40 days, so you are covered.

4. Cost-Effective solution:
440F stainless steel boasts dimensional stability and toughness that are above other top-tier stainless steels at a significant cost savings for the customer.

   

Applications

Common Applications of S35VN

440F stainless steel's free-machining qualities and fine surface finish make it ideal for a variety of applications:

1) Fasteners:
Parts that require tight tolerances and polished surfaces.

2) Medical Equipment:

Precision surgical tools and dental instruments that require high machinability and smooth finishes.

3)Valves and Fittings:
Precision components require high strength and ease of machining.

4)Automotive components:
Shafts and fittings that need incredible machining accuracy.

5) Industrial Tools:
Pump drills, taps, and dies where enhanced toughness is needed.

 

Packaging & Shipping

 

 

FAQ

• Can you offer special surface treatment or finishing services?
  Yes, we have surface treatments such as polishing, sand-blasted, and heat treatment processes for S35VN stainless steel. We also offer custom dimensions, custom cutting, and custom processing to accommodate customer requirements for optimal steel performance for all applications.

• How do you ensure the quality of your products?
  All of our $35VN stainless steel products are tested to the extremes. We passed the is09001: 2008 quality management system certification and do vigorous quality control in each production step. A full set of material certifications is provided with every delivery to guarantee reliability and performance, with chemical composition and mechanical properties verified for each batch.

• How does the maintenance of s35VN differ from other blades?
  While s35VN stainless steel achieves corrosion resistance, proper maintenance across applications, how it is made and used, should always be the purpose. Keep cleaning and regular storage to make that material last longer.

• Can it accommodate high-volume production orders?
  For S35VN and other high-performance stainless steels, we do not have minimum order quantities and work with both prototype and high-volume production needs, Customers know us for both small and large projects as we facilitate high volume orders with a stable and consistent supply, on-time delivery, and the right amount of product knowledge.