ASTM A148 Grade 105-85 Cast Steel Capillary

ASTM A148 Grade 105-85 Cast Steel Capillary Product Information -:- For detailed product information, please contact sales. -: ASTM A148 Grade 105-85 Cast Steel Capillary Synonyms -:- For detailed product information, please contact sales. -:

ASTM A148 Grade 105-85 Cast Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: ASTM A148 Grade 105-85 High-Strength Cast Steel** #### **Product Overview** ASTM A148 Grade 105-85 is a high-strength carbon steel casting alloy designed for structural applications requiring superior mechanical properties. This grade is part of the ASTM A148 specification, which covers high-strength steel castings for general applications. The designation "105-85" refers to its minimum tensile strength of 105 ksi (725 MPa) and minimum yield strength of 85 ksi (585 MPa). It achieves its properties through heat treatment (normalizing and tempering or quenching and tempering), resulting in a fine-grained, homogeneous microstructure with an excellent balance of strength and ductility. **Key Advantages:** * **High Strength-to-Weight Ratio:** Allows for the design of lighter, more efficient components without sacrificing load-bearing capacity. * **Good Ductility and Toughness:** Provides reliability under impact and shock loading conditions. * **Excellent Machinability (in annealed condition):** Can be readily machined into complex geometries after casting. * **Weldability:** Can be welded using standard procedures, though precautions are necessary. --- #### **International Standard** The manufacturing, chemical, and mechanical properties of this product are governed by the latest version of: * **ASTM A148 / A148M:** Standard Specification for Steel Castings, High Strength, for Structural Purposes. This standard ensures the quality and performance consistency of castings for critical structural applications. --- #### **Chemical Composition (Heat Analysis, %)** ASTM A148 specifies mechanical properties as the primary requirement. Chemical composition is generally agreed upon between the manufacturer and the purchaser but is controlled to achieve the specified mechanical properties. A typical, representative chemistry for Grade 105-85 is: | Element | Typical Range (%) | | :--- | :--- | | Carbon (C) | 0.25 - 0.35 | | Manganese (Mn) | 0.70 - 1.00 | | Silicon (Si) | 0.60 - 0.80 | | Phosphorus (P), max | 0.035 | | Sulfur (S), max | 0.035 | | *Note: Alloying elements such as Chromium, Nickel, and Molybdenum may be added in small quantities to enhance hardenability and mechanical properties, particularly in thicker sections.* | --- #### **Mechanical Properties** Mechanical properties are the primary guarantee for this grade and are tested on specimens representing the casting's critical sections. | Property | Required Value | Unit | | :--- | :--- | :--- | | **Tensile Strength, min** | 725 | MPa (105 ksi) | | **Yield Strength (0.2% Offset), min** | 585 | MPa (85 ksi) | | **Elongation in 2 in (50 mm), min** | 17 | % | | **Reduction of Area, min** | 35 | % | | **Brinell Hardness** | 201 - 255 | HBW | **Impact Properties (Typical):** * While not always a mandatory requirement in the base standard, Charpy V-Notch impact properties can be specified. * **Typical Impact Energy (Charpy V-Notch at Room Temperature):** 40 - 60 J (30 - 45 ft·lb) --- #### **Physical Properties (Typical Values)** * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Modulus of Elasticity:** 200 GPa (29,000 ksi) * **Poisson's Ratio:** 0.29 * **Coefficient of Thermal Expansion:** 11.5 x 10⁻⁶/°C (20-100°C) --- #### **Heat Treatment** ASTM A148 Grade 105-85 castings are supplied in a heat-treated condition to meet the specified mechanical properties. The standard heat treatment processes are: * **Normalizing and Tempering:** Provides a good combination of strength and toughness with reduced risk of distortion. * **Quenching and Tempering:** Used to achieve higher strength and better through-thickness properties, especially for thicker sections. --- #### **Product Applications** This high-strength cast steel is ideal for components that experience high static and dynamic loads in industrial and heavy equipment sectors. * **Construction & Mining Machinery:** Gears, pinions, shafts, bearing housings, boom ends, and crusher components. * **Material Handling Equipment:** High-strength hooks, pulleys, sheaves, and links for heavy-duty chains. * **Railroad Components:** Couplers, yokes, and other draft gear parts. * **Industrial Machinery:** Press frames, machine tool components, and rolls where high strength is critical. * **Marine & Offshore Equipment:** Deck machinery components, winch drums, and stern tubes. --- #### **Fabrication & Welding Notes** * **Welding:** While weldable, it requires strict procedures due to its high strength and carbon content. * Use low-hydrogen welding processes (SMAW, GMAW, FCAW with low-H₂ electrodes). * Preheating (typically 200-300°C / 400-600°F) and Post-Weld Heat Treatment (PWHT/stress relieving) are **highly recommended** to prevent hydrogen-induced cracking and relieve residual stresses. * Welding procedure specifications (WPS) should be qualified before production welding. * **Machining:** Best performed in the annealed condition for optimal tool life. Machining in the heat-treated condition requires rigid setups and carbide tools. --- **Disclaimer:** This datasheet is for informational purposes only. The information provided is typical and should not be used for design or specification purposes. Always consult the official ASTM A148 standard, your casting supplier, and a qualified metallurgist for the most accurate and project-specific data, especially for critical applications. -:- For detailed product information, please contact sales. -: ASTM A148 Grade 105-85 Cast Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4154 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. -: ASTM A148 Grade 105-85 Cast Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A148 Grade 105-85 Cast Steel Capillary -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A148 Grade 105-85 Cast Steel Capillary -:- For detailed product information, please contact sales. -:

Packing of ASTM A148 Grade 105-85 Cast Steel Capillary -:- 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 Capillary 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 625 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