304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar

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Product Details
Type: Carbon Steel Bar
Standard: AISI, ASTM, DIN, JIS, GB, BS
Technique: Hot Rolled,Cold Drawn,Forged
Diamond Member Since 2026

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  • 304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
  • 304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
  • 304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
  • 304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
  • 304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
  • 304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
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  • Overview
  • Product Description
  • Field test
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  • FAQ
Overview

Basic Info.

Shape
Bar
Surface Treatment
Polished, Black, Grinding or as Demand
Special Use
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
Application
Structural Steel Bar, Tool Steel Bar, Die Steel Ba
Sample
Available
Delivery Time
10-40 Days
Heat Treatment
Quenched,Tempered,Annealed
Tolerance
±1%
Size
Thickness:.02-20mm Od:10-820mm
Transport Package
Standard Export Packaging
Specification
Customed
Trademark
Ningchuan
Origin
Wuxi, Jiangsu
HS Code
722840
Production Capacity
500, 000tons/Year

Product Description

304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
Product Description
Carbon Steel Round Bars Introduction
As a fundamental and core profile in the industrial manufacturing sector, our carbon steel round bars are produced from high-quality carbon steel billets through standardized rolling processes. Combining excellent mechanical properties, superior machinability, and high cost-effectiveness, they are widely applicable to diverse scenarios such as general structural components, mechanical machining, and construction supporting parts, providing stable and reliable basic material solutions for various industries.

Core Product Categories & Specifications
We mainly supply carbon steel round bars of mainstream grades such as Q235 and Q355, catering to application scenarios with different strength requirements:
Q235 Round Bars: Highly versatile, ideal for conventional structural components.
Q355 Round Bars: Boasting higher strength, suitable for scenarios requiring certain load-bearing capacity.
Our product range features complete specifications, with diameter options ranging from 8mm to 1000mm. Length can be customized according to customer requirements (both fixed length and multiple length are available). Surface treatment options include black surface and pickling. We also provide basic value-added processing services such as cutting, straightening, and chamfering, precisely matching customers' production and assembly needs.
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
Core Product Advantages
High-quality Raw Materials & Precise Dimensions: Rolled from premium carbon steel billets, our round bars feature smooth surfaces and regular cross-sections, free from defects such as cracks, scabs, and folds. Dimensional tolerances strictly comply with national standards, with excellent straightness, facilitating subsequent machining and assembly.
Stable Mechanical Properties: Endowed with good tensile strength, yield strength, and plasticity, the round bars can withstand loads under regular working conditions without easy deformation or fracture.
Excellent Machining Compatibility: Easy to cut, weld, and bend, the round bars can be seamlessly integrated with subsequent processes such as machining, stamping, and forging, significantly reducing customers' machining difficulty and material loss.
Outstanding Cost-effectiveness: While ensuring basic performance, we strictly control production costs to meet the cost-control needs of bulk procurement.

Main Application Fields
Our products are widely used in general industrial and construction scenarios:
Mechanical Manufacturing Industry: Blanks for components such as gears, shafts, bolts, and nuts.
Construction Industry: Reinforcement cages, supporting members, and embedded parts.
Chemical Industry: Supports for general equipment and pipe connectors.
Automotive Industry: Basic structural accessories and blanks for interior brackets.
Agricultural Machinery Equipment Industry: Structural components of agricultural machinery bodies and blanks for transmission parts.
Hardware Products Industry: General hardware accessories and tool blanks.
Rigorous Quality Assurance
We have established a full-process quality control system: strict inspection and analysis are conducted on raw materials upon arrival to ensure that carbon steel billets meet standards. Meanwhile, we carry out sampling inspection of mechanical properties and surface defect screening. Each batch of products is accompanied by a complete quality certification. Bundled protective packaging is adopted to avoid collision damage and corrosion during transportation, ensuring consistent and stable delivery quality.
We offer customized solutions for specifications, surface treatment, and basic deep processing. Relying on a sound production and logistics system, we achieve fast delivery of bulk orders. With quality as our bottom line and customer needs as our guide, we provide cost-effective carbon steel round bar products for various industries. We sincerely invite you to cooperate with us and build an efficient and stable production supporting system.

Product Features
Customizable Round Bars: All round bars can be customized to meet diverse customer requirements.
One-stop Deep Processing Service: We provide customized post-processing services for steel bars, fulfilling customers' diverse and exclusive needs in one stop.
Sound Supply Chain: With abundant resources and stable product performance, we help customers reduce procurement costs and improve overall operational efficiency.
Wide Diameter Range: The maximum outer diameter of round bars can reach 1000mm.
Non-destructive Testing: Ultrasonic eddy current flaw detection is performed according to customer requirements to ensure material quality.
Superior Quality & Advanced Craftsmanship: Equipped with top-tier facilities, we adopt premium manufacturing technologies and maintain high environmental standards to ensure product excellence.

Core Strengths
Complete product supply, one-stop service, customizable solutions, reliable product quality, professional service team
Field test
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
More products
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
304 316 316 321 410 420 Steel Rod, Bright or Black Stainless /Copper/Aluminum/Carbon Steel Rod Bar
FAQ
1. Products & Pricing & Payment
Q: What metal materials and related services can you provide?
A: We supply a full range of metal materials, including steel pipes, steel plates, and profiles, and simultaneously offer integrated services such as precision machining and metal stamping, realizing a one-stop closed loop of procurement, processing, and delivery.
 
Q: What types of customization requirements do you support?
A: We can provide customized products and solutions based on your specific specifications (dimensions, tolerances), material requirements, and application scenarios, covering customization needs such as complex, special-shaped parts and high-performance metal products.
 
Q: Will the price change after confirmation of the quotation?
A: The quotation is valid for 15 working days. If the fluctuation range of raw material prices or exchange rates exceeds 5% during this period, we will negotiate with you in advance to adjust the price to avoid additional costs after order confirmation.
 
2. Minimum Order Quantity (MOQ) & Samples
Q: What is your Minimum Order Quantity (MOQ)? Do you accept small-batch trial orders?
A: The MOQ varies by product type, and it is usually 500 units for standard products. We accept small-batch trial orders of 1-100 units to facilitate your verification of product quality and market demand, and the price for trial orders is negotiable.
 
Q: Can you provide samples? How is the sample fee calculated?
A: We can provide up to 2 free samples for standard products, and the courier fee shall be borne by the client (or collected on delivery). A reasonable sample fee will be charged for customized samples, which can be deducted from the subsequent official order.
 
Q: How soon can samples be shipped?
A: Standard samples can be shipped within 3-5 working days; customized samples take 7-10 working days. We ship samples via international couriers to ensure timeliness.
3. Product Quality & Certification
Q: Which international quality standards do your products comply with?
A: Our metal materials and processed parts all comply with international general standards such as ASTM, DIN, JIS, and ISO. Meanwhile, we can customize products that meet special standards such as EU REACH, RoHS, or US FDA according to the requirements of the target market.
 
Q: Can you provide the relevant certification documents required for export?
A: Yes. We can provide documents required for export, such as material composition analysis reports and dimensional inspection reports on demand, ensuring compliance with the customs and industry requirements of the destination country.
 
Q: How to ensure consistent quality between samples and mass-produced products?
A: We implement strict quality control throughout the production process, with traceable records from incoming raw material inspection to finished product delivery inspection. The mass production process strictly follows the technical parameters and process standards of the samples to ensure stable and consistent batch quality.
4. Customization Services & Technical Support
Q: Do you provide OEM/ODM customization services?
A: We support OEM/ODM cooperation models and can customize product dimensions, tolerances, material grades, and surface treatment processes according to your needs. Our engineering team can provide design optimization and mold development support based on your technical drawings or application scenarios.
 
Q: Can you provide detailed product technical data?
A: Yes. On demand, we can provide Product Technical Data Sheets (TDS), detailed specifications, processing flow charts, and inspection reports to assist you in completing local market product certification and application selection. 
 
5. Lead Time & Logistics
Q: What are the production lead times for standard products and customized products, respectively?
A: In-stock orders for standard products can be shipped within 48 hours; mass production takes 10-15 working days. The lead time for customized products is 15-30 working days, and the lead time for special specification products can be determined through separate negotiation.
 
Q: What international logistics methods do you provide? Can you handle customs clearance on behalf of clients?
A: We support three international logistics methods: sea freight, air freight, and international courier (DHL/FedEx/UPS). We can handle export customs clearance procedures on behalf of clients and provide a full set of customs clearance documents, such as commercial invoices, packing lists, and certificates of origin. Under FOB/CIF terms, we cooperate with long-term and high-quality logistics partners to ensure efficient and smooth transportation.
 
6. After-Sales Service
 Q: How to solve technical or quality problems after receiving the goods?
A: Our after-sales team provides 24/7 all-round support. After receiving feedback on problems, we will respond quickly and provide reasonable solutions, such as maintenance and replacement, based on the actual situation to protect clients' rights and interests.
 
7. Company Strength & Cooperation Model
 Q: Can you provide relevant materials to prove the company's strength (such as factory scale and production capacity)?
A: Yes. We can provide factory real-scene videos, production line photos, and third-party audit reports (such as SGS audit reports) to intuitively show our production capacity and management level. Meanwhile, we welcome clients to visit our factory with an advance appointment.
 
Q: How to handle sudden changes in international trade policies (such as tariff adjustments and export restrictions)?
A: We have a professional risk control team that monitors global trade policy dynamics in real time. In case of policy changes, we will notify you immediately and provide alternative solutions (such as adjusting product specifications to meet new regulations and changing transportation routes) to minimize the impact on your orders.
8. Order Tracking & Communication
Q: How to track the order progress?
A: After order confirmation, we will assign a dedicated account manager to you, who will take the initiative to update progress information at key nodes such as production, shipment, and logistics via email, WhatsApp, WeChat,t and other channels. You can also log in to the client-exclusive portal to check the order status in real time.
 
Q: What is the response time for inquiries and follow-ups?
A: We promise to respond to all client inquiries within 24 working hours. For urgent matters, you can directly call your dedicated account manager, and we will provide immediate assistance. Our team is familiar with major global time zones to ensure efficient communication with clients from all countries.

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US$1,000.00-1,200.00 / Ton