Stainless Steel Rod and Bar

Your Leading Stainless Steel Rod and Bar Supplier

 

Xi'an Baohui Steel Co., Ltd. is located in the ancient capital of China, Xi'an. We are a leading manufacturer and supplier of specialty metal materials. Our focus is on providing high-performance stainless steel, titanium alloys, copper alloys, aluminum alloys, and nickel alloys for our customers. Each batch undergoes chemical analysis, mechanical testing, and non-destructive testing to ensure internal and external quality.

 
 
Why Choose Us?

Advanced Production Facilities

We operate with modern heating furnaces, cold-rolling and cold-drawing mills, hot-extrusion presses, annealing lines, and full pickling/passivation systems to ensure stable and accurate tube and alloy processing.

Strict Quality Control

All finished tubes and alloy products are tested using eddy-current, ultrasonic, and direct-reading spectrometry to guarantee consistent mechanical performance and full compliance with customer specifications.

Large Capacity and Fast Delivery

With an annual capacity of over 3 million tons and a well-organized stock system, we can quickly support customized orders and meet tight delivery schedules.

 

Strong Production Market

Our products are exported to over 100 countries, including major markets in the US, Germany, France, Japan, Korea, Brazil, Italy, Turkey, and Southeast Asia, earning long-term trust from global industrial buyers.

 

Types of Stainless Steel Rod and Bar

 

 

15-5PH Round Bar

Our 15-5PH Round Bar is a high-performance, martensitic precipitation-hardening stainless steel known for its exceptional strength, corrosion resistance, and toughness. This chromium-nickel-copper alloy maintains its mechanical properties at elevated temperatures (up to 600°F / 316°C) and offers outstanding resistance to stress corrosion cracking.

 

ASTM A479 Stainless Steel Bar

Our ASTM A479 Stainless Steel Bar is a premium specification covering stainless steel bars for use in boilers, pressure vessels, and other critical applications requiring superior mechanical properties and corrosion resistance. This standard includes austenitic, ferritic, martensitic, and duplex stainless steel grades specifically designed for high-stress and high-temperature environments.

 

AISI 4130 Steel Round Bar

AISI 4130 Steel Round Bar is a versatile chromium-molybdenum alloy steel known for its high strength-to-weight ratio, excellent toughness, and good fatigue resistance. This heat-treatable low-alloy steel offers superior weldability and machinability compared to higher carbon steels, making it ideal for applications requiring high strength and durability.

 

 

Parameters of Stainless Steel Rod and Bar

 

Parameter

Details

Diameter

5mm – 300mm

Length

1000mm – 6000mm (Custom lengths available)

Form

Round Bar, Forged Bar, Centerless Ground

Surface Finish

Black, Peeled, Turned, Polished, Centerless Ground

Standard

ASTM A564, AMS 5659, AMS 5862, UNS S15500

Condition

Solution Annealed, Precipitation Hardened (H900, H1025, H1075, H1100, H1150)

 

Characteristic of Stainless Steel Rod and Bar

 
 
01
 

High strength

Stainless steel is generally regarded as a relatively strong metal, although the tradeoff for this core strength is increased weight, meaning it's not always the best choice for all types of structural or weight-critical applications

 
02
 

Non-porous

Being non-porous is a key factor in the ability of stainless steel to resist corrosion, in addition to the specific chemical makeup of its alloy

 
03
 

Ineffective conductor

Stainless steel doesn't conduct heat particularly well, meaning it can be used in higher temperature applications than some other metals. It's also a poor conductor of electricity by metallic standards

440C Stainless Steel Bar factory

 

Chemical Composition of Stainless Steel Rod and Bar

 

Element

Content (%)

C

≤ 0.07

Si

≤ 1.00

Mn

≤ 1.00

P

≤ 0.040

S

≤ 0.030

Cr

14.00 – 15.50

Ni

3.50 – 5.50

Cu

2.50 – 4.50

Nb+Ta

0.15 – 0.45

Fe

Balance

 

Application Industries of Stainless Steel Rod and Bar
 

Construction and Infrastructure
For the construction industry, stainless steel bars serve to reinforce concrete and cast structural frameworks. Stainless steel bars are also used in bridge construction, buildings, and marine structures, given the nature of their working environments. Industry reports say that 35% of the stainless steel produced globally is used for construction.

 

Automotive Manufacturing
Stainless steel bars are used by automobile manufacturers for various components like exhaust systems, chassis parts, and fasteners. Strength and resistance to heat allow for safe and long-lasting vehicles. Several studies have linked stainless steel to fuel efficiency, and this is because it is very light.

 

Chemical and Processing Industries
Stainless steel bars find usage in chemical plants and processing facilities where corrosive environments are encountered. They are widely used in the fabrication of tanks, pipelines, and heat exchangers. The metal maintains the purity of chemicals by preventing reactions and thus lowers maintenance costs.

 

Food and Beverage Production
Cold-rolled stainless steel bars are widely used in the food and beverage industry for hygienic purposes. This application encompasses sanitary and easy-to-clean needs like mixing drums, conveyor systems, and storage containers. The food-grade stainless steel must conform to the stringent FDA regulations.

 

Energy and Power Generation
Stainless steel bars play an integral role in energy infrastructure, from wind turbines to nuclear power plants. They are ideally positioned to stand against extremes of pressure and temperatures in thermal boiler systems, turbine blades, and piping. The growing renewable energy sector has further enhanced demand for stainless steel in this area.

 

Customization Options

 

Material Grade:

Multiple options or customizable

Diameter:

Customizable

Length:

Customizable

Mechanical Properties:

Yield Strength, Tensile Strength, Elongation

Surface Finish:

Mirror Finish, Pickled, Polished, etc.

MOQ:

Customizable to specifications

 

Surface Treatment of Stainless Steel Rod and Bar

Pickling

Pickling involves immersing stainless steel in an acid solution (usually nitric or hydrofluoric acid) to remove scale, oxides, and other impurities. It helps restore the material's corrosion resistance, particularly after welding or heat treatment. This process is crucial when the surface has developed discoloration or heavy scale.

Passivation

Passivation is the process of treating stainless steel with an acid solution (often nitric or citric acid) to remove free iron from the surface. This creates a protective oxide layer that enhances corrosion resistance. While both pickling and passivation involve chemical treatments, they serve different purposes. Pickling removes contaminants and oxides, while passivation focuses on enhancing the oxide layer to maximise corrosion resistance.

Electropolishing

Electropolishing is an electrochemical process that removes a thin layer of material to create a smooth, ultra-clean surface. This process not only improves corrosion resistance by enhancing the chromium-to-iron ratio on the surface but also reduces surface roughness, making it easier to clean. It is particularly beneficial for components used in hygienic or high-purity applications.

 

Our Certificates

 

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15-5PH Round Bar

 

Our Service Advantages

① Raw Material Inspection – All incoming materials are checked for quality and specification accuracy before production.
② In-Process Inspection – Critical production stages are monitored to maintain stable processes and consistent product quality.
③ Final Product Inspection – Finished products are tested to verify performance and ensure compliance with customer requirements.
④ Pre-Shipment Inspection – Dimensions, surface quality, packaging, and documents are checked prior to dispatch.
⑤ We welcome inspections from any accredited third-party agency upon request.
⑥ We provide cutting, machining, surface finishing, and heat-treatment services to support customized orders.

 

Packaging & Transportation

 

Packaging Details:The standard export packaging, plastic film, or craft paper is covered. Awooden case or wooden pallet is adopted to protect products from damage during delivery. In addition, clear labels are tagged on the outside of the packages for easy identification of the products and quality information.

 

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Payment Terms

 

 

T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.

 

 

FAQ

 

 

Q: What documentation do you provide?

A: We provide full MTC 3.2 certificates with chemical analysis, mechanical tests, and NDE reports as required.

Q: Can ASTM A479 bars be used in nuclear applications?

A: Yes, many grades are approved for nuclear applications when accompanied by proper certification and testing.

Q: Can you supply bars to specific project specifications?

A: Yes, we can meet additional customer and project-specific requirements.

Q: Do you provide bars in different heat treatment conditions?

A: Yes, we supply 15-5PH bars in solution annealed condition or various precipitation-hardened conditions (H900 to H1150).

Q: What is the heat treatment process for 4130 steel?

A: 4130 Bar can be normalized at 870°C (1600°F), hardened at 870°C (oil quench), and tempered at 425-650°C (800-1200°F) depending on required hardness.

We're professional stainless steel rod and bar manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale stainless steel rod and bar in stock here from our factory. For price consultation, contact us. A286 stainless Steel suppliers, ASTM A276 AISI 17 4PH Stainless Steel Round Bars, stainless steel rod and bar

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