1,We Manufacturing processes are primarily classified into four types:
1:Forging,
2:Casting,
3:Cutting,
4:Rolling.
2,We can manufacture in accordance with these standards.
Standards:
GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards).
Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others.
The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160.
The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500.
Flange Classification
1. **According to Chemical Industry Standards:** Flanges are classified as follows:
Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)).
2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows:
Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation).
3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows:
Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange.
4. **According to Connection Method/Type:** Flanges are classified as follows:
Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc.
5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges.
6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges.
A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts."
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Niagara LaSalle 1018 Cold Finished Steel Flange Bar Product Information
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Niagara LaSalle 1018 Cold Finished Steel Flange Bar Synonyms
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Niagara LaSalle 1018 Cold Finished Steel Bar Product Information
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# **Product Introduction: Niagara LaSalle 1018 Cold Finished Steel Bar**
**Niagara LaSalle 1018** is a **cold finished, low-carbon steel bar** produced to the stringent quality standards of Niagara LaSalle Corporation. It represents a premium, consistently reliable version of the ubiquitous AISI/SAE 1018 grade, processed through cold drawing to provide enhanced mechanical properties, superior surface finish, and tighter dimensional tolerances compared to hot-rolled equivalents.
As a fundamental low-carbon steel, 1018 offers an exceptional balance of moderate strength, excellent ductility, and superior weldability and formability. Niagara LaSalle's production ensures high material consistency, excellent straightness, and a clean, scale-free surface, making it a preferred choice for high-volume, precision machining and fabrication where part quality and manufacturing efficiency are critical.
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## **1. Chemical Composition (Per AISI/SAE 1018)**
The composition adheres to the standard AISI/SAE 1018 specification, with Niagara LaSalle maintaining tight control to ensure batch-to-batch uniformity.
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
| :--- | :--- | :--- | :--- | :--- |
| **Content** | 0.15 - 0.20 | 0.60 - 0.90 | ≤ 0.040 | ≤ 0.050 |
**Key Characteristics of the Composition:**
* **Low Carbon Content:** Provides excellent **ductility, toughness, and weldability**. It is not responsive to through-hardening by heat treatment but is ideal for case hardening (carburizing).
* **Moderate Manganese:** Enhances strength and hardenability slightly compared to 1008/1010 grades, contributing to the improved properties from cold working.
* **Standard Resulfurized/Rephosphorized:** Contains typical levels of phosphorus and sulfur; it is **not** a free-machining grade like 12L14. This balances machinability with good transverse mechanical properties.
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## **2. Physical & Mechanical Properties (Cold Drawn Condition)**
Cold drawing significantly improves the properties of the base hot-rolled steel. The values below are typical for Niagara LaSalle cold-drawn 1018 bars.
| Property | Typical Value - Cold Drawn | **Advantage vs. Hot-Rolled** |
| :--- | :--- | :--- |
| **Yield Strength (0.2% Offset)** | **70,000 psi (483 MPa) Min** | **~50% higher** than hot-rolled (~50 ksi). |
| **Tensile Strength** | 80,000 psi (552 MPa) Min | Significantly increased. |
| **Elongation (in 2")** | **12%** (Minimum) | Maintains good ductility despite increased strength. |
| **Reduction of Area** | 45% | |
| **Hardness** | **126 - 179 HB** (71 - 88 HRB) | Increased surface hardness provides better wear resistance. |
| **Machinability** | **~70% of 1212** | Good machinability for a non-leaded/low-sulfur grade; produces good surface finishes. |
| **Surface Finish** | **63 - 125 µin Ra (1.6 - 3.2 µm)** | **Clean, smooth, scale-free surface** ideal for painting, plating, or direct use. |
| **Dimensional Tolerance** | Meets **ASTM A108** precision tolerances (e.g., ±0.001" for smaller diameters). | **Tighter and more consistent** than hot-rolled, reducing machining allowance. |
| **Straightness** | Excellent | Critical for automated machining and long shaft applications. |
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## **3. Product Applications**
Niagara LaSalle 1018 Cold Finished Bar is a versatile "workhorse" material used across virtually all manufacturing sectors for parts requiring a combination of strength, formability, and machinability.
* **General Machined Components:** **Pins, shafts, bolts, studs, spindles, and axles** for light to moderate duty.
* **Automotive & Transportation:** **Brackets, linkages, clamps, and non-critical structural parts.**
* **Fabricated Structures & Frames:** Used for **weldments, frames, and supports** where its excellent weldability is a key advantage.
* **Consumer Goods & Hardware:** Components for appliances, furniture, and tools.
* **Case-Hardened Parts:** An excellent, economical substrate for **carburized or carbonitrided parts** like gears, cam lobes, and wear surfaces, where a hard case over a tough core is needed.
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## **4. International & Equivalent Standards**
As a fundamental grade, AISI/SAE 1018 has direct equivalents in all major international standards systems.
| Standard System | Equivalent Grade | **Notes on Condition** |
| :--- | :--- | :--- |
| **AISI / SAE** | **1018** (Cold Drawn) | The direct U.S. standard. "Niagara LaSalle 1018" implies cold-finished quality. |
| **ASTM** | **A108** (Standard for Steel Bars, Carbon, Cold-Finished) | This is the **governing material standard** for the cold-finished condition. |
| **UNS** | G10180 | Unified Numbering System designation. |
| **DIN (EN)** | **1.0402 (C22E / C22R)** | European equivalent. The "E" or "R" denotes suitability for engineering applications. |
| **JIS** | **S20C** | Very close Japanese equivalent (nominal 0.20% C). |
| **GB (China)** | **20# Steel** | Common Chinese designation. |
| **ISO** | ISO 683-18: Type 1.0402 | International standard equivalent. |
**Crucial Note:** While the chemistry is standard, specifying **"Niagara LaSalle 1018"** or **"1018 Cold Finished per ASTM A108"** ensures procurement of material with the enhanced mechanical properties, superior surface quality, and dimensional precision associated with a premium cold-drawn bar, as opposed to generic merchant bar stock.
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## **5. Key Advantages & Considerations**
**Advantages:**
* **Excellent Weldability & Formability:** The low carbon content makes it ideal for welding (all processes) and cold bending/forming operations without pre-heating.
* **Enhanced "As-Supplied" Properties:** Cold drawing provides higher strength, better surface finish, and tighter tolerances than hot-rolled stock, often reducing or eliminating rough machining steps.
* **Cost-Effective & Readily Available:** A widely used, economical grade with excellent availability in a vast range of sizes and shapes (rounds, hexes, flats, squares).
* **Good Base for Case Hardening:** The low carbon core remains tough after carburizing, making it a prime choice for surface-hardened components.
**Considerations:**
* **Not a Free-Machining Steel:** Machinability is good but not optimal for very high-volume screw machining; grades like 12L14 or 1215 are better for that purpose.
* **Limited Through-Hardening:** Cannot be strengthened by quenching and tempering; its strength is fixed by the cold work. For higher core strength, consider medium-carbon grades like 1045 or 4140.
* **Corrosion Susceptibility:** Like all non-stainless carbon steels, it requires protective coatings (paint, plating, galvanizing) for corrosion resistance.
* **Anisotropic Properties:** Mechanical properties are directional; transverse ductility and impact strength are lower than longitudinal properties.
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**Disclaimer:** This overview describes typical properties. For critical applications, always consult the **official Niagara LaSalle material certification or data sheets** for the specific lot. Designers should account for the effect of further machining, welding, or forming on the final part properties, as these operations will alter the cold-worked state of the material.
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Niagara LaSalle 1018 Cold Finished Steel Bar Specification
Dimensions
Size:
Diameter 20-1000 mm Length <5069 mm
Size:We can customized as required
Standard:
Per your request or drawing
We can customized as required
Properties(Theoretical)
Chemical Composition
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Niagara LaSalle 1018 Cold Finished Steel Bar Properties
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Applications of Niagara LaSalle 1018 Cold Finished Steel Flange Bar
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Chemical Identifiers Niagara LaSalle 1018 Cold Finished Steel Flange Bar
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Packing of Niagara LaSalle 1018 Cold Finished Steel Flange Bar
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Standard Packing:
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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Flange drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 1540 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition