ASTM A148 Grade 135-125 Cast Steel Wire

ASTM A148 Grade 135-125 Cast Steel Wire Product Information -:- For detailed product information, please contact sales. -: ASTM A148 Grade 135-125 Cast Steel Wire Synonyms -:- For detailed product information, please contact sales. -:

ASTM A148 Grade 135-125 Cast Steel Product Information -:- For detailed product information, please contact sales. -: **Product Introduction: ASTM A148 Grade 135-125 Cast Steel** **1. Overview** ASTM A148 Grade 135-125 is a high-strength carbon steel and low-alloy steel casting grade specified under the ASTM A148 standard. It is designed for structural applications requiring a superior combination of tensile strength, yield strength, and ductility. The grade designation "135-125" indicates minimum tensile strength (135 ksi or 930 MPa) and minimum yield strength (125 ksi or 860 MPa) requirements. This material is typically produced via static casting or investment casting processes and is often supplied in the heat-treated (quenched and tempered) condition to achieve its specified mechanical properties. **2. International Standard** The governing standard is **ASTM A148 / A148M**, titled "Standard Specification for Steel Castings, High Strength, for Structural Purposes." This standard covers carbon and low-alloy steel castings intended for highly stressed structural components. It includes multiple grades with differing strength levels, with Grade 135-125 being one of the highest strength grades available. **3. Chemical Composition** The standard specifies mechanical properties as the primary requirement, with chemical composition generally determined by the manufacturer to meet those properties. However, typical compositions for this grade are as follows (values are maximum percentages unless noted as a range): * **Carbon (C):** 0.35 - 0.45% * **Manganese (Mn):** 0.70 - 1.00% * **Silicon (Si):** 0.30 - 0.60% * **Phosphorus (P):** 0.025% max * **Sulfur (S):** 0.025% max * **Alloying Elements:** Typically includes one or more of the following to achieve hardenability and strength: * **Chromium (Cr):** 0.80 - 1.10% * **Nickel (Ni):** 1.50 - 2.00% * **Molybdenum (Mo):** 0.20 - 0.35% *(Note: Exact composition can vary between foundries. The purchaser may specify supplemental requirements for chemistry if needed for specific service conditions like weldability or low-temperature impact resistance.)* **4. Physical & Mechanical Properties** * **Tensile Strength:** 135 ksi min (930 MPa min) * **Yield Strength (0.2% Offset):** 125 ksi min (860 MPa min) * **Elongation:** 7% min in 2 inches (50 mm) * **Reduction of Area:** 25% min * **Hardness:** Typically in the range of 285 - 341 HBW (Brinell Hardness) after heat treatment. * **Heat Treatment:** Castings are almost always **Quenched and Tempered (Q&T)** to achieve the specified strength and toughness. The tempering temperature is carefully controlled to balance strength and ductility. * **Density:** Approximately 7.85 g/cm³. * **Modulus of Elasticity:** ~29 x 10⁶ psi (200 GPa). **5. Key Characteristics & Advantages** * **Very High Strength-to-Weight Ratio:** Ideal for applications where reducing weight is critical without sacrificing load-bearing capacity. * **Good Ductility and Toughness:** For its strength level, it maintains reasonable elongation and reduction of area, providing resistance to brittle fracture. * **Good Wear Resistance:** Suitable for components subject to abrasion and surface fatigue. * **Machinability:** Fair; requires appropriate tools and techniques due to its high strength and hardness. * **Weldability:** Can be welded with proper pre-heating, post-weld heat treatment, and carefully selected welding procedures to avoid cracking and maintain properties in the Heat-Affected Zone (HAZ). **6. Typical Applications** ASTM A148 Grade 135-125 castings are used in demanding structural and mechanical components across various heavy industries: * **Construction & Mining Equipment:** Bucket teeth, dipper sticks, drive sprockets, crusher parts, heavy-duty suspension components. * **Material Handling:** High-stress gears, sheave wheels, crane hooks, pulley systems. * **Energy Industry:** Components for oilfield equipment, wind turbine hubs and brackets (where specified), turbine structural supports. * **Defense & Aerospace:** Track components, armored vehicle parts, landing gear components, high-strength structural brackets. * **Industrial Machinery:** Press frames, heavy-duty rolls, anvils, and other highly stressed machine parts. **7. Summary** ASTM A148 Grade 135-125 represents a premium grade of high-strength cast steel, offering an exceptional balance of ultra-high strength and usable toughness. Its performance is achieved through careful alloying and controlled heat treatment. Engineers select this material for critical, highly loaded components where failure is not an option and where its properties can allow for more optimized, lightweight designs compared to lower-strength materials. Compliance with the ASTM A148 standard ensures consistent quality and reliability for industrial applications. -:- For detailed product information, please contact sales. -: ASTM A148 Grade 135-125 Cast Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5851 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 135-125 Cast Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A148 Grade 135-125 Cast Steel Wire -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A148 Grade 135-125 Cast Steel Wire -:- For detailed product information, please contact sales. -:

Packing of ASTM A148 Grade 135-125 Cast Steel Wire -:- 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 Wire 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 2322 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