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."
-:-
For detailed product information, please contact sales.
-:
AISI 1042 Steel Flange, Cold Drawn Bar (UNS G10420) Product Information
-:-
For detailed product information, please contact sales.
-:
AISI 1042 Steel Flange, Cold Drawn Bar (UNS G10420) Synonyms
-:-
For detailed product information, please contact sales.
-:
AISI 1042 Steel, Cold Drawn Bar (UNS G10420) Product Information
-:-
For detailed product information, please contact sales.
-:
### **Product Datasheet: AISI 1042 Cold Drawn Steel Bar (UNS G10420)**
---
#### **1. Product Overview**
AISI 1042 Cold Drawn Bar (UNS G10420) is a medium-carbon steel product manufactured through a cold drawing process that significantly enhances its mechanical properties, dimensional accuracy, and surface quality. This process involves pulling hot-rolled stock through a carbide die at room temperature, resulting in strain hardening and superior geometric characteristics. With its balanced carbon-manganese composition, AISI 1042 offers an optimal combination of strength, hardenability, and machinability, making it suitable for precision components requiring reliable performance in demanding applications.
---
#### **2. Key Characteristics & Advantages**
* **Enhanced Mechanical Properties:** Cold working increases yield and tensile strength substantially over hot-rolled material.
* **Superior Dimensional Accuracy:** Maintains tight diameter and straightness tolerances, suitable for precision applications without secondary machining.
* **Excellent Surface Finish:** Produces a smooth, bright, and scale-free surface (typically 1.6-3.2 µm Ra), ideal for bearing surfaces and aesthetic parts.
* **Good Hardenability:** Responds well to quenching and tempering for additional strength enhancement.
* **Improved Machinability:** The cold worked structure often provides more consistent and predictable chip formation compared to hot-rolled stock.
* **Cost-Effective for Precision Parts:** Reduces or eliminates need for additional turning, grinding, or polishing operations.
---
#### **3. Chemical Composition**
| Element | Composition (% by weight) | Standard Reference |
| :--- | :--- | :--- |
| **Carbon (C)** | 0.40 - 0.47 | ASTM A108 / SAE J403 |
| **Manganese (Mn)** | 0.60 - 0.90 | ASTM A108 / SAE J403 |
| **Phosphorus (P)** | ≤ 0.040 | ASTM A108 / SAE J403 |
| **Sulfur (S)** | ≤ 0.050 | ASTM A108 / SAE J403 |
| **Silicon (Si)** | 0.15 - 0.35 | ASTM A108 / SAE J403 |
| **Iron (Fe)** | Balance | - |
*Note: Some standards may allow Manganese up to 1.00%. Sulfur content is typically kept low for better ductility and weldability.*
---
#### **4. Typical Mechanical Properties (Cold Drawn Condition)**
*Properties are for material in the cold drawn, stress-relieved condition and can vary with section size.*
| Property | Typical Value / Range | Test Standard |
| :--- | :--- | :--- |
| **Tensile Strength** | 620 - 760 MPa (90 - 110 ksi) | ASTM A370 |
| **Yield Strength (0.2% offset)** | 515 - 655 MPa (75 - 95 ksi) | ASTM A370 |
| **Elongation in 50 mm (2")** | 12% - 18% | ASTM A370 |
| **Reduction of Area** | 40% - 50% | ASTM A370 |
| **Brinell Hardness** | 187 - 241 HB | ASTM E10 |
| **Surface Roughness (Ra)** | 1.6 - 3.2 µm (63 - 125 µin) | ASME B46.1 |
| **Modulus of Elasticity** | 200 GPa (29 x 10⁶ psi) | ASTM E111 |
| **Machinability Rating** | ~55% (vs. 100% for 1212 Steel) | - |
---
#### **5. International Standards & Equivalent Grades**
| Standard System | Equivalent Designation | Primary Specification |
| :--- | :--- | :--- |
| **UNS** | G10420 | Unified Numbering System |
| **SAE / AISI** | 1042 | SAE J403 |
| **ASTM** | Grade 1042 | ASTM A108 (Standard for Steel Bar, Carbon and Alloy, Cold-Finished) |
| **EN (Europe)** | 1.1191 (C42E) | EN 10083-2 |
| **ISO** | C42E | ISO 683-18 |
| **JIS (Japan)** | S45C (Similar) | JIS G4051 |
| **GB (China)** | 45# | GB/T 699 |
| **DIN (Germany)** | 1.1191, Ck42 | DIN 17200 |
---
#### **6. Primary Applications**
Cold drawn AISI 1042 bars are specified for precision components requiring good strength, dimensional accuracy, and a quality surface finish.
* **Shafts & Axles:** For automotive, agricultural, and general machinery (e.g., pump shafts, motor shafts, conveyor rolls).
* **Gears & Sprockets:** Often used as blank stock for machined gears that will be heat-treated.
* **Fasteners:** High-strength bolts, studs, and pins (approaching Grade 8.8 / SAE Grade 5 properties).
* **Hydraulic & Pneumatic Components:** Cylinder rods, piston rods, and valve stems.
* **Tooling & Fixtures:** Jigs, fixtures, dowel pins, and guide rods.
* **Automotive Components:** Steering parts, suspension components, and transmission shafts.
---
#### **7. Heat Treatment Response**
While often used in the cold drawn condition, AISI 1042 responds well to heat treatment for enhanced properties:
* **Annealing:** Heat to ~790-815°C (1450-1500°F), slow cool. Used to soften for machining or to relieve cold work stresses.
* **Normalizing:** Heat to ~870-925°C (1600-1700°F), air cool. Refines grain structure.
* **Quenching & Tempering:** For high strength and toughness.
* **Austenitizing:** ~830-855°C (1525-1575°F)
* **Quenchant:** Oil (standard) or water (for simple shapes, with higher cracking risk).
* **Tempering:** 425-650°C (800-1200°F) to achieve desired hardness (typically 25-40 HRC).
* **Surface Hardening:** Suitable for induction or flame hardening to create a wear-resistant case.
---
#### **8. Fabrication & Processing Notes**
* **Machining:** Good machinability. Use positive rake tools and adequate coolant. The material is often supplied in a stress-relieved condition to minimize distortion during machining.
* **Welding:** **Fair.** Pre-heating (150-260°C / 300-500°F) and post-weld heat treatment are **strongly recommended** due to the carbon content and cold worked structure. Use low-hydrogen electrodes.
* **Forming:** Cold forming is possible but limited. The material is harder and less ductile than hot-rolled stock. Annealing may be necessary for significant bending or forming.
* **Grinding & Finishing:** The smooth as-drawn surface is ideal for further polishing or plating. Grinding may be used for ultra-precise dimensions.
---
#### **9. Quality & Inspection**
* Material is supplied to **ASTM A108**, which covers cold-finished carbon and alloy steel bars.
* Available with a **Mill Test Report (MTR)** certifying chemistry and mechanical properties.
* Dimensional tolerances are significantly tighter than for hot-rolled bars (per ASTM A108 tables).
* Surface is free of scale, bright, and suitable for many applications without additional finishing.
---
**Disclaimer:** This information is for reference purposes. Properties can vary with manufacturer, exact processing, and heat treatment. For critical applications, always consult the material certification, relevant standards (ASTM A108), and conduct application-specific testing. Cold drawn bars exhibit directional properties (anisotropy) which should be considered in design.
-:-
For detailed product information, please contact sales.
-:
AISI 1042 Steel, Cold Drawn Bar (UNS G10420) Specification
Dimensions
Size：
Diameter 20-1000 mm Length <4803 mm
Size:We can customized as required
Standard：
Per your request or drawing
We can customized as required
Properties（Theoretical）
Chemical Composition
-:-
For detailed product information, please contact sales.
-:
AISI 1042 Steel, Cold Drawn Bar (UNS G10420) Properties
-:-
For detailed product information, please contact sales.
-:
Applications of AISI 1042 Steel Flange, Cold Drawn Bar (UNS G10420)
-:-
For detailed product information, please contact sales.
-:
Chemical Identifiers AISI 1042 Steel Flange, Cold Drawn Bar (UNS G10420)
-:-
For detailed product information, please contact sales.
-:
Packing of AISI 1042 Steel Flange, Cold Drawn Bar (UNS G10420)
-:-
For detailed product information, please contact sales.
-:
Standard Packing:
-:-
For detailed product information, please contact sales.
-:
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 1274 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
