ALLOY HOT ROLLED ROUND BAR JIS/GB/DIN STANDAR

ALLOY HOT ROLLED ROUND BAR JIS/GB/DIN STANDAR System 1

ALLOY HOT ROLLED ROUND BAR JIS/GB/DIN STANDAR System 2

ALLOY HOT ROLLED ROUND BAR JIS/GB/DIN STANDAR System 3

ALLOY HOT ROLLED ROUND BAR JIS/GB/DIN STANDAR System 4

ALLOY HOT ROLLED ROUND BAR JIS/GB/DIN STANDAR

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 20000 m.t./month

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Product Description:

Specifications of Bearing Steel Round Bar

Grade	AISI 52100, ASTM E52100, DIN 1.3505,JIS SUJ2, GCr15
Dimensions	Diameter: 30-60mm Length: 2000-13000mm or as required
Shape	Round Bar
Type	Alloy Steel Bar
Delivery Condition	Black Surface
Material	Bearing Steel
Technique	Hot Rolled

Usage and Applications of Bearing Steel Round Bar

Bearing steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.

Usage of Bearing Steel

First the famous 1C-1.5Cr steel from which the majority of bearings are made. Its structure is apparently well-understood and the focus is on purity in order to avoid inclusions which initiate fatigue during rolling contact. Then there is the M50 steel and its variants, from which bearings which serve at slightly higher temperatures in aeroengines are manufactured, based on secondary-hardened martensite.

Tapered roller bearing are generally used to support combined load mainly consisting of radial load. Their cups are separable for easy assembling ,During mounting and using, radial clearance and axial clearance can be adjusted and preloaded mounting can be made.

Packaging & Delivery of Bearing Steel Round Bar

Packaging Detail: ASTM 52100 Steel in seaworthy packing or on customer request; Packed in bundles with standard export sea-worthy package or as customer require

Delivery Detail: 45 days after confirmed

Trade terms: FOB, CFR, CIF ou as customer's required

MOQ: 25 tons or at customer's demands. If the quantity is good, the price will be better.

Processing of Bearing Steel Round Bar

The processing of Bearing Steel Round Bar is hot rolled (strictly control sulphur, phosphorus and non-metallic inclusions content and distribution)

Chemical Composition of Bearing Steel Round Bar

C	Si	Mn	Cr	Ni	Cu
			Equal or less than
0.95-1.05	0.15-0.35	0.25-0.45	Cr:1.40-1.65	0.30	0.25

All products' chemical composition and specification can be design according to customers' requirement.

Note of Bearing Steel Round Bar

1. According to national standard (GB) for our products, if not, supply according to national standards (GB) or agreement.

2. We can not only provide electric furnace +LF+VD and electros lag re-melting (ESR) steel forging materials, but also forging products of piece, bar, etc.

3. Our company is equipped with roll equipment and can provide our customers with roll billets or finished.

4. Please send us your detailed specifications when inquire. We will reply to you ASAP.

5. Certificate of quality is issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation and hardness. forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the certificate of quality.

Q:Are steel round bars suitable for use in the manufacturing of fittings?: Certainly! Steel round bars are a fitting manufacturer's dream. They possess a myriad of advantages that make them the top choice for creating fittings. Firstly, steel is renowned for its outstanding strength and durability, rendering it perfect for crafting dependable and enduring fittings. These round bars are capable of enduring heavy loads and high pressure, ensuring that the fittings operate effectively across a range of applications. Moreover, steel round bars are incredibly versatile, easily assuming different shapes and forms to accommodate various fittings designs. This adaptability empowers manufacturers to fashion fittings that meet precise requirements and dimensions, guaranteeing a flawless fit for diverse systems and structures. Additionally, steel's resistance to corrosion is paramount for fittings that may encounter moisture or other corrosive substances. The anti-corrosion properties of steel guarantee that fittings maintain their structural integrity and functionality over time, even in the harshest environments. Furthermore, steel round bars are conveniently available in an extensive array of sizes, grades, and finishes. This abundance of options equips manufacturers with ample choices to meet different specifications and design preferences. To conclude, steel round bars are the ideal choice for manufacturing fittings due to their strength, durability, versatility, corrosion resistance, and availability. These attributes make steel round bars a reliable and efficient material for crafting high-quality fittings that can withstand various operating conditions and deliver long-lasting performance.

Q:Can steel round bars be used for hydraulic cylinder applications?: Yes, steel round bars can be used for hydraulic cylinder applications. Steel round bars are often used in the construction of hydraulic cylinders due to their high strength and durability. They provide excellent resistance to impact, corrosion, and wear, making them suitable for heavy-duty applications. Additionally, steel round bars can be easily machined and fabricated to meet specific dimensional requirements for hydraulic cylinder components. Therefore, steel round bars are a popular choice for hydraulic cylinder applications.

Q:Are steel round bars suitable for machining operations?: Yes, steel round bars are suitable for machining operations. Steel is known for its high strength and durability, making it an excellent material for various machining processes. Steel round bars can be easily shaped, cut, drilled, and turned to create precise components or parts. Machining operations such as milling, drilling, and turning can be efficiently performed on steel round bars to achieve the desired shape, size, and finish. Additionally, steel round bars offer good dimensional stability and excellent mechanical properties, allowing for accurate and consistent machining results. Overall, steel round bars are a reliable choice for machining operations in various industries including automotive, aerospace, construction, and manufacturing.

Q:Can steel round bars be threaded?: Steel round bars have the capability to be threaded, which involves cutting threads onto the surface of the cylindrical object in order to create a screw-like shape. This enables the bar to be securely fastened into a corresponding threaded hole or to be joined with another threaded component. Threading can be accomplished through various methods, such as manual threading with a die or by employing machine tools like lathes or thread rolling machines. The specific technique utilized depends on the desired thread size and type. However, it is vital to recognize that not all steel round bars are compatible with threading, as the steel's material composition and hardness can impact the threading process. As a result, it is advisable to seek guidance from a professional or someone experienced to ensure the steel round bar is appropriate for threading and to determine the most suitable threading approach.

Q:Can steel round bars be used in the manufacturing of heat exchangers?: Yes, steel round bars can be used in the manufacturing of heat exchangers. Steel round bars are commonly used as a material for heat exchanger tubes due to their high strength, durability, and excellent heat transfer properties. The bars can be formed and welded into various shapes and sizes, making them suitable for constructing the heat exchanger tubes.

Q:What is the maximum chromium content allowed for steel round bars?: The maximum chromium content allowed for steel round bars typically depends on the specific grade or specification being used. However, in general, stainless steel round bars often have a maximum chromium content of around 20-30%, while for carbon or alloy steels, the chromium content is usually lower, typically less than 2%.

Q:What are the advantages of using boron-alloy steel round bars?: The advantages of using boron-alloy steel round bars include increased strength, improved hardness and wear resistance, enhanced toughness, and better heat resistance. Boron-alloy steel round bars also have excellent machinability and can withstand high temperatures without losing their structural integrity. Additionally, these bars offer cost savings due to their longer service life and reduced maintenance requirements.

Q:What are the tolerance levels for steel round bars?: Tolerance levels for steel round bars vary depending on the specific application and industry standards. Steel round bars are typically produced with tight dimensional tolerances to ensure their precise diameter, straightness, and surface finish. Common tolerance levels for steel round bars include diameter tolerances, straightness tolerances, and surface finish tolerances. Diameter tolerances specify the acceptable range of deviation from the nominal diameter of the round bar. This tolerance is usually expressed as a plus or minus value, such as +/- 0.005 inches. The specific tolerance will depend on the size and type of steel round bar being produced, as well as the requirements of the application. Straightness tolerances refer to the allowable amount of deviation from a perfectly straight line along the length of the round bar. This tolerance is typically expressed in terms of the maximum distance between the round bar and a straight edge placed along its length. For example, a straightness tolerance of 0.030 inches per foot means that a one-foot section of the round bar can deviate up to 0.030 inches from a straight line. Surface finish tolerances specify the acceptable level of imperfections or irregularities on the surface of the round bar. This tolerance is often expressed in terms of roughness average (Ra) or roughness peak (Rz) values. The specific tolerance will depend on the desired surface finish and the application requirements. It is important to note that tolerance levels may also be subject to industry-specific standards, such as those set by organizations like the American Society for Testing and Materials (ASTM) or the International Organization for Standardization (ISO). These standards provide guidelines and specifications for various steel products, including round bars, to ensure consistent quality and performance. Ultimately, determining the tolerance levels for steel round bars involves considering the specific application requirements, industry standards, and the capabilities of the manufacturing process.

Q:Are steel round bars available in different colors?: No, steel round bars are typically available in a silver or gray color as they are made from alloyed iron and carbon.

Q:Can steel round bars be hardened?: Steel round bars can indeed be hardened through a specific procedure known as hardening. This procedure entails heating the steel to a precise temperature and swiftly cooling it, which is commonly referred to as quenching. The rapid cooling induces a transformation in the steel, leading to heightened hardness and strength. Typically, the hardening process is followed by tempering, which entails reheating the hardened steel to a lower temperature. This step serves to minimize brittleness and further enhance toughness. Hardening is extensively applied in the manufacturing of tools, machine parts, and various other applications that demand exceptional strength and durability.

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