AISI 50B60H Steel Flange

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 50B60H Steel Flange Product Information -:- For detailed product information, please contact sales. -: AISI 50B60H Steel Flange Synonyms -:- For detailed product information, please contact sales. -:

AISI 50B60H Steel Product Information -:- For detailed product information, please contact sales. -: # **AISI 50B60H Boron Steel - Technical Data Sheet** ## **1. Product Overview** **AISI 50B60H** is a medium-high carbon, boron-treated alloy steel specifically manufactured with **guaranteed hardenability bands** (designated by the "H" suffix). This steel provides exceptional hardenability through minimal boron additions, making it a cost-effective alternative to traditional alloy steels for applications requiring deep hardening characteristics and consistent mechanical properties. The "H" designation ensures that each heat of steel meets **strict hardenability limits** as defined by SAE J1268, providing engineers with predictable hardening behavior for critical components. This material is particularly valued for heavy-duty applications where section size variations demand uniform hardening response. --- ## **2. Chemical Composition** ### **Standard Composition Ranges (SAE J404/J412):** | Element | Composition Range (%) | Function & Significance | |---------|----------------------|-------------------------| | **Carbon (C)** | 0.56 - 0.64 | Primary hardening element; determines maximum achievable hardness and strength | | **Manganese (Mn)** | 0.75 - 1.00 | Enhances hardenability, strength, and response to heat treatment | | **Phosphorus (P)** | ≤ 0.035 | Residual impurity; minimized for improved toughness | | **Sulfur (S)** | 0.040 - 0.070 | Added to improve machinability; forms manganese sulfides | | **Silicon (Si)** | 0.15 - 0.35 | Deoxidizer; provides solid solution strengthening | | **Boron (B)** | 0.0005 - 0.003 | **Critical element**; dramatically improves hardenability efficiency | | **Iron (Fe)** | Balance | Base matrix | ### **H-Grade Special Requirements:** - **Composition control**: Tighter than standard grades to ensure consistent hardenability - **Boron protection**: Typically contains small amounts of titanium or aluminum to prevent boron nitride formation - **Guaranteed hardenability**: Each heat must fall within specified Jominy curve bands --- ## **3. Physical & Mechanical Properties** ### **As-Supplied Condition (Annealed):** - **Hardness**: 192-229 BHN - **Tensile Strength**: 620-795 MPa (90-115 ksi) - **Yield Strength**: 380-550 MPa (55-80 ksi) - **Elongation**: 18-22% (in 2 inches) - **Reduction of Area**: 40-50% - **Machinability**: 65-70% (relative to 1212 steel = 100%) ### **Hardenability Bands (SAE J1268):** | Distance from Quenched End | Minimum Rockwell C | Maximum Rockwell C | |----------------------------|-------------------|-------------------| | 1/16 inch (J1) | 57 | 65 | | 1/8 inch (J2) | 56 | 64 | | 1/4 inch (J4) | 54 | 62 | | 1/2 inch (J8) | 48 | 58 | | 1 inch (J16) | 38 | 52 | | 2 inches (J32) | 28 | 44 | ### **Heat Treated Properties:** *Typical Heat Treatment Cycle:* - **Austenitizing**: 830-850°C (1525-1560°F) - **Quenching**: Oil, good agitation - **Tempering**: 425-650°C (800-1200°F) depending on required hardness **Mechanical Properties After Heat Treatment:** | Tempering Temperature | Hardness (HRC) | Tensile Strength | Yield Strength | Charpy V-Notch Impact | |----------------------|----------------|------------------|----------------|-----------------------| | 205°C (400°F) | 55-60 | 1860-2070 MPa | 1650-1860 MPa | 15-25 J | | 425°C (800°F) | 45-50 | 1480-1650 MPa | 1310-1480 MPa | 35-45 J | | 540°C (1000°F) | 38-42 | 1170-1310 MPa | 1030-1170 MPa | 50-60 J | | 650°C (1200°F) | 30-34 | 900-1030 MPa | 790-900 MPa | 70-80 J | --- ## **4. Product Applications** ### **Primary Application Areas:** **Heavy-Duty Automotive Components:** - **Commercial vehicle axle shafts** (primary application) - **Heavy truck transmission shafts** and gears - **Steering components**: Drag links, tie rods, pitman arms - **Drivetrain parts**: Propeller shafts, universal joint yokes - **Suspension components**: Torsion bars for heavy vehicles **Industrial & Agricultural Machinery:** - **High-stress gears** for industrial gearboxes - **Heavy-duty shafts** and spindles in manufacturing equipment - **Agricultural tractor components**: PTO shafts, final drive gears - **Forged connecting rods** for large engines **Construction & Mining Equipment:** - **Excavator undercarriage components** - **Drill rod assemblies** for mining applications - **Crane boom sections** and sheave pins - **Heavy-duty fasteners** (Grade 12.9 equivalent) **Specialized Applications:** - **Military vehicle components** - **Oil field equipment parts** - **Heavy press components** - **High-stress tooling applications** --- ## **5. International Standards & Equivalents** ### **Primary Specifications:** | Standard | Designation | Governing Specification | |----------|-------------|-------------------------| | **SAE/AISI** | **50B60H** | SAE J404, J412, J1268 | | **ASTM** | - | A304 (Standard for H-Steels) | | **UNS** | G50601 | Unified Numbering System | ### **Global Equivalent Grades:** | Country/Region | Standard | Equivalent Grade | Notes | |----------------|----------|-----------------|-------| | **Germany** | DIN 17211 | **50B60H** | Direct equivalent | | **Europe (EN)** | EN 10083-3 | **1.5534H** | European designation | | **Japan** | JIS G4052 | **SB56H** | Similar hardenability grade | | **China** | GB/T 5216 | **60MnBH** | Chinese equivalent | | **International** | ISO 683-1 | **Type 1.5534** | International standard | ### **Related Processing Standards:** - **Heat Treatment**: AMS 2759, ASTM A29 - **Forging Practice**: ASTM A788 - **Bars & Billets**: ASTM A304, A322 - **Quality Testing**: ASTM A255 (Jominy Test Method) --- ## **6. Technical Advantages & Design Considerations** ### **Key Advantages:** ✅ **Predictable hardenability** across production lots ✅ **Deep hardening characteristics** suitable for large sections ✅ **Cost-effective** alternative to Cr-Mo/Ni-Cr alloy steels ✅ **Good combination** of strength and toughness after tempering ✅ **Consistent performance** in heat treatment ✅ **Good machinability** in annealed condition ### **Design & Processing Considerations:** ⚠️ **Section size limitations**: Maximum effective hardening depth ~75-100 mm in oil ⚠️ **Temper embrittlement susceptibility**: Rapid cooling recommended through 350-575°C range ⚠️ **Decarburization sensitivity**: Protective atmosphere required during heat treatment ⚠️ **Welding not recommended** without specialized procedures ⚠️ **Transverse properties** may be lower than longitudinal properties ### **Quality Assurance Features:** - Each heat lot certified to hardenability bands - Full traceability to melt practice - Consistent response to heat treatment - Predictable distortion characteristics during quenching --- **Technical Note**: The "H" designation in 50B60H provides engineers with reliable data for designing components with specific hardness gradients, ensuring consistent performance in safety-critical applications where predictable material behavior is essential. **Revision**: 1.1 **Date**: October 2023 **Disclaimer**: Properties listed are typical values. Actual performance depends on specific manufacturing processes, heat treatment parameters, and component design. Always consult with material engineers for critical applications. -:- For detailed product information, please contact sales. -: AISI 50B60H Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4105 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 50B60H Steel Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 50B60H Steel Flange -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 50B60H Steel Flange -:- For detailed product information, please contact sales. -:

Packing of AISI 50B60H Steel Flange -:- 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 576 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