What can you purchase from us?

We can offer customized services for galvanized coils, galvanized sheets, galvanized pipes and galvanized profiles.

Why should you purchase from us rather than from other suppliers?

Dongtai Rucheng Mechanical and Electrical Technology Co., Ltd. is located in Yancheng City, Jiangsu Province. It is a professional supplier of surface treatment equipment for metal wire materials. The company has a professional technical team, and its specialized production lines include coil pickling, annealing and heat treatment, electroplating, phosphating and boronizing. Centered on technological innovation, lean management achieves high-quality and efficient operation, providing one-stop se

Customizable 21-4n Bar for Engine Valves

Name: Customizable 21-4n Bar for Engine Valves
Brand: Dongtai Ruicheng Electromechanical Technology Co., Ltd.
SKU: 2150109252

Jiangsu, ChinaDongtai Ruicheng Electromechanical Technology Co., Ltd.

US$4,300.00-6,500.00

1 Ton

Product specifications

Model

Product profile

Type

Alloy Steel Bar

Standard

AISI, ASTM, DIN, JIS, GB, BS

Composition

21-4n Austenitic Heat-Resistant Steel Alloy

Model NO.

21-4N

Technique

Hot Rolled / Forged / Cold Drawn / Customizable

Shape

Bar

Surface Treatment

Black (as-Rolled) / Polished / Peeled

Special Use

High Temp & Oxidation Resistant Steel

Application

Automobile Engine Valves, Exhaust Valve Components

Material Type

21-4n Austenitic Valve Steel

Diameter Range

φ4.50mm-φ80.00mm

Heat Treatment Method

Annealing, Solution Treatment, Quenching

Surface Condition

Smooth, Free of Cracks & Defects

Primary Application

Automobile Engine Valves

Transport Package

Wooden Box

Specification

Per Customer's Requirement

Trademark

Rui Cheng

Origin

Dongtai City, China

Key features

High-Temp & Oxidation Resistance: 21-4n Austenitic Heat-Resistant Steel Alloy ideal for engine valves and high-cycle applications.

Flexible Heat Treatment: Options include annealing, solution treatment, quenching, and tempering to meet specific hardness needs.

Multiple Surface Treatments: Available in Black (as-rolled), Polished, or Peeled finishes to suit various application requirements.

Comprehensive Certification: Includes Mill Test Certificate (MTC) 3.1 with optional chemical analysis reports for quality assurance.

Wide Application Scope: Suitable for automobile engine valves, pneumatic tools, compressor valves, and hydraulic systems.

Full Customization Support: Complete customization in material, diameter, length, heat treatment, and certification per technical drawings.

Company profile

High Repeat Buyers Choice

Dongtai Ruicheng Electromechanical Technology Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.16h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is a professional manufacturing enterprise in metal product wire surface treatment, integrating R&D, production, and sales with a focus on innovation and quality. They offer extensive customization services and maintain a procedural approach to quality control and customer service. However, there is no evidence of certification holdings or overseas operational capabilities. The company has been exporting for one year, with 21-30% of sales from exports, but lacks facilities like overseas warehouses or showrooms.

Supplier typeThe supplier is a combined type company specializing in metal products and technical services, focusing on R&D, design, production, and sales.

After-Sales capabilityThe supplier has a comprehensive after-sales service system, responsible for installation, commissioning, and maintenance.

R&D capabilityThe company drives innovation with a professional design and production team, focusing on advanced and stable technology.

Production capacityThe supplier boasts a wide range of manufacturing equipment, including bending, laser cutting, drilling, milling, welding, sawing, and laser engraving machines.

Customization capabilityThe supplier offers extensive customization options, from minor to full customization, based on samples or designs.

Product Q&A

Q:Who are we?

Dongtai Rucheng Mechanical and Electrical Technology Co., Ltd. is located in Dongtai City, Jiangsu Province, China. Our factory has approximately 40 employees.

Q:When is the delivery time? Can it be cheaper?

It depends on your order. It will be delivered within 30 working days after receiving the advance payment. If you place many orders, the price can certainly be reduced.

Q:What are the payment terms?

Payment can be made by telegraphic transfer or by sight draft, and it should be made before shipment.

Q:How can we ensure that customers receive the goods smoothly after making the payment?

Don't worry, dear. We have included trade guarantee. You can place an order through the guarantee system. If we fail to deliver the goods, the deposit will be refunded to you.

Q:How do you ensure the quality of the products?

Don't worry, dear. We have implemented trade protection. If the products you receive have any quality issues, the payment can be refunded to you.