EN10305-1 E235+N NBK SEAMLESS PRECISION TUBE FOR AUTO APPLICATION 30CrMnSi 35CrMo 15CrMo 45# seamless steel pipe

EN10305-1 E235+N NBK SEAMLESS PRECISION TUBE FOR AUTO APPLICATION 30CrMnSi 35CrMo 15CrMo 45# seamless steel pipe

Company Profile

Hongye stands out with its unique capabilities! As a leading global metal distribution company, we provide tailored product solutions to meet our clients' needs, helping them gain a competitive edge.

Founded in 2009 and headquartered in Wuxi, China, Hongye has made significant achievements in the aerospace, defense, transportation, shipbuilding, semiconductor, energy, and construction sectors over the past five years.

We offer solutions in sheets, pipes, profiles, building materials, specialty steels, stainless steels, and non-ferrous metals. Additionally, our involvement in finance and port operations strengthens our position in the metal import and export market.

With our integrated “one-stop” services that include procurement, processing, retail, and logistics, Hongye has become an industry benchmark. We excel in delivering high-quality, cost-effective products, supported by robust supply chain management to meet customer needs continuously.

Internationally, Hongye has established a solid business network in Europe, Southeast Asia, and the Middle East. Our multilingual and culturally adept trade team ensures efficient and professional service for every transaction.

Since 2010, Hongye has made notable progress in sustainability, recognized by multiple institutions. By the end of 2012, we had invested 1.22 billion RMB (200 million USD) in China's metal distribution industry, becoming a significant local investor. We aim to expand our market share through collaboration and innovation.

Looking ahead, Hongye will continue to globalize, leveraging our experience and resources to grow our international market share and aspire to be a leader in the global metal distribution industry.

Our goal is to rank among the top 10 in comprehensive strength in China's metal distribution market.

Product Specification

1. Material Grade:

   • E235+N (Carbon steel with normalized heat treatment)

2. Manufacturing Process:

   • Seamless

3. Dimensional Specifications:

   • Outside Diameter (OD): 6 mm to 60 mm
   • Wall Thickness: 1 mm to 8 mm
   • Length: As per customer requirements

4. Tolerances:

   • Outer Diameter Tolerance: ±0.05 mm to ±0.10 mm, depending on size
   • Wall Thickness Tolerance: ±0.05 mm to ±0.10 mm, depending on size
   • Straightness: ≤0.3 mm/m
   • Circularity: ≤0.05 mm
   • Surface Roughness: Ra ≤0.4 μm

5. Chemical Composition (wt.%):

   • Carbon (C): 0.12-0.22%
   • Manganese (Mn): 0.30-0.80%
   • Silicon (Si): ≤0.35%
   • Sulfur (S): ≤0.035%
   • Phosphorus (P): ≤0.035%

6. Mechanical Properties:

   • Tensile Strength: 370-550 MPa
   • Yield Strength: ≥235 MPa
   • Elongation: ≥20%
   • Hardness: 130-200 HB

7. Heat Treatment:

   • Normalized (N)

8. Surface Condition:

   • The tubes are supplied in a bright, smooth, and scale-free condition.

9. Applicable Standards:

   • EN 10305-1:2016 "Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold drawn tubes"

These specifications ensure that the EN10305-1 E235+N NBK seamless precision tubes meet the stringent requirements for high-precision automotive and industrial applications. The tight tolerances, surface finish, and mechanical properties are critical for components that require accurate fit, load-bearing capacity, and reliable performance.

Product Description

Product Characteristics

 

Okay, let's review the key product characteristics of the EN10305-1 E235+N NBK seamless precision tubes:

1. Material Grade:

   • E235+N (Carbon steel with normalized heat treatment)

2. Manufacturing Process:

   • Seamless

3. Dimensions:

   • Outer Diameter: 6 mm to 60 mm
   • Wall Thickness: 1 mm to 8 mm

4. Tolerances:

   • Tight dimensional and geometric tolerances for precision applications

5. Chemical Composition (wt.%):

   • Carbon (C): 0.12-0.22%
   • Manganese (Mn): 0.30-0.80%
   • Silicon (Si): ≤0.35%
   • Sulfur (S): ≤0.035%
   • Phosphorus (P): ≤0.035%

6. Mechanical Properties:

   • Tensile Strength: 370-550 MPa
   • Yield Strength: ≥235 MPa
   • Elongation: ≥20%

7. Heat Treatment:

   • Normalized (N)

8. Applicable Standards:

   • EN 10305-1:2016 "Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold drawn tubes"

The key characteristics of the EN10305-1 E235+N NBK seamless precision tubes are the material grade, seamless manufacturing process, tight dimensional tolerances, and the specific chemical composition and mechanical properties. These tubes are designed for high-precision automotive and industrial applications that require enhanced dimensional accuracy, strength, and reliability.

 

 

Application of the product

 

1. Automotive Applications:

   • Steering system components (e.g., tie rods, control arms, steering columns)
   • Suspension components (e.g., shock absorbers, struts, control arms)
   • Braking system components (e.g., brake calipers, brake master cylinders)
   • Transmission and driveline components (e.g., propeller shafts, constant velocity joints)
   • Fuel and fluid handling (e.g., fuel lines, brake lines, air conditioning lines)
   • Engine and powertrain components (e.g., rocker arms, pushrods, timing chains)

2. Industrial Machinery Applications:

   • Hydraulic and pneumatic cylinders and actuators
   • Precision equipment frames and supports
   • Machine tool components (e.g., guide rails, slides, spindles)
   • Robotics and automation equipment
   • Aerospace and defense applications (e.g., landing gear, aircraft control systems)

3. General Industrial Applications:

   • Instrumentation and control system components
   • Valves, fittings, and connectors for fluid and gas systems
   • Structural and support components for industrial equipment
   • Seamless tubing for high-pressure and high-temperature applications
   • Fabrication of specialized tools and equipment

The key advantages of the EN10305-1 E235+N NBK seamless precision tubes that make them suitable for these applications include:

• Tight dimensional and geometric tolerances for precise fit and function
• High strength and hardness for load-bearing and wear-resistant applications
• Good corrosion resistance and surface finish for reliable performance
• Suitability for various heat treatment and surface treatment processes
• Ease of machining and fabrication for custom component production

 

FAQ

Q1: Are you trading company or manufacturer?

A: We are the manufacturer with 3 factories. Specializing in producing welded Wear plate, carbon steel profile, Carbon Products bollard for over 10 years.

Q2:What product information must I provide before making a purchase?
A:Please provide the grade, width, thickness, and surfacetreatment requirements, as well as the quantities you require.

Q3:What are your payment terms?
A: 30% T/T in advance and 70% balance before shipment or based on BL copy or LC at sight.

Q4:Is it possible to send samples?
A: Of course, we offer free samples and express shipping to customers all over the world.

Q5:Do you offer a service for customized products?
A: Yes, we can produce according to your specifications and drawings.

Q6:Can you assist me in importing steel products for the first time?
A: Yes, we have shipping agent who will arrange the shipment with you.
Q7. What is your delivery time?
A: Within 7 working days after receiving your balance payment.