ASTM A27 Grade U-60-30 Cast Carbon Steel Sheet,Plate

ASTM A27 Grade U-60-30 Cast Carbon Steel Sheet/Plate Product Information -:- For detailed product information, please contact sales. -: ASTM A27 Grade U-60-30 Cast Carbon Steel Sheet/Plate Synonyms -:- For detailed product information, please contact sales. -:

ASTM A27 Grade U-60-30 Cast Carbon Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Technical Datasheet: ASTM A27 Grade U-60-30 Cast Carbon Steel** ## **1. Product Overview** **ASTM A27 Grade U-60-30** is a foundational, **general-purpose carbon steel casting** grade specified for applications where weldability, machinability, and cost-effectiveness are prioritized over high strength. It is the most commonly specified grade within the ASTM A27 standard and serves as a versatile, economical material for a vast range of non-critical industrial components. The grade designation "U-60-30" indicates a **minimum tensile strength of 60 ksi (415 MPa)** and a **minimum yield strength of 30 ksi (205 MPa)**. Castings are typically supplied in the as-cast or annealed condition, offering the most straightforward manufacturing process within the standard. ## **2. Governing International Standard** This product is manufactured and procured in accordance with **ASTM A27 / A27M – Standard Specification for Steel Castings, Carbon, for General Application**. This international standard establishes the requirements for carbon steel castings intended for general service where high ductility and ease of fabrication are essential. Grade U-60-30 represents the baseline strength level for such applications. ## **3. Chemical Composition** The composition is optimized for excellent castability, soundness, and weldability. The requirements for Grade U-60-30 (Grade 415-205) are as follows (in weight %, maximum unless range is given): * **Carbon (C):** 0.30% max * **Manganese (Mn):** 0.60% min / 0.90% max * **Silicon (Si):** 0.80% max * **Phosphorus (P):** 0.05% max * **Sulfur (S):** 0.06% max * **Residual Elements:** Copper (Cu) ≤ 1.00%; Nickel (Ni) ≤ 0.50%; Chromium (Cr) ≤ 0.50%; Molybdenum (Mo) ≤ 0.25%; Vanadium (V) ≤ 0.05% (combined ≤ 1.00%). **Key Feature:** The controlled, relatively low carbon and manganese content defines its primary characteristics of **superior weldability** and **high ductility**. ## **4. Physical & Mechanical Properties** * **Minimum Mechanical Properties (as per ASTM A27):** * **Tensile Strength:** 60 ksi (415 MPa) * **Yield Strength (0.2% Offset):** 30 ksi (205 MPa) * **Elongation in 2" (50 mm):** 24% min * **Note:** Reduction of Area is **not a mandatory requirement** for this grade, emphasizing its application focus on ductility and formability rather than ultimate toughness. * **Typical Achieved Properties:** * **Hardness:** Typically 120 - 170 HBW (Brinell Hardness) in the as-cast or annealed condition. * **Modulus of Elasticity:** 29 x 10⁶ psi (200 GPa) * **Poisson's Ratio:** 0.29 * **Density:** 7.85 g/cm³ * **Impact Resistance:** Offers good toughness at room temperature due to its low carbon content and ferritic-pearlitic microstructure. * **Common Conditions:** Castings are most often used in the **as-cast** (no heat treatment) or **annealed** condition. Annealing is employed to relieve casting stresses, improve machinability, and ensure dimensional stability for precision parts. ## **5. Key Characteristics & Engineering Advantages** * **Exceptional Weldability:** Its low carbon equivalent makes it highly suitable for all common welding processes without requiring complex preheat or post-weld heat treatment procedures, minimizing fabrication costs and distortion. * **Superior Ductility and Formability:** The high minimum elongation (24%) makes it a forgiving material that can yield under overload rather than fracture catastrophically, suitable for components with some degree of fit-up adjustment. * **Excellent Machinability:** Its moderate hardness and uniform microstructure allow for easy machining with high material removal rates, excellent surface finish, and extended tool life. * **Cost-Effectiveness:** As the most basic grade in the A27 standard, it involves the lowest alloying costs and often requires no heat treatment, making it the most economical choice for steel castings. * **Good Castability and Pressure Tightness:** Properly produced, it yields sound castings with good fluidity and acceptable pressure integrity for many low-pressure applications. ## **6. Typical Applications** ASTM A27 Grade U-60-30 is the industry's go-to material for a vast array of general engineering and structural components where high strength is not the primary driver: * **General Machinery:** Machine bases, covers, brackets, housings, and non-critical gear blanks. * **Piping and Fluid Handling:** Low-pressure valve bodies, pump casings, pipe fittings, and flanges for water and non-corrosive services. * **Construction and Infrastructure:** Manhole covers, gratings, construction hardware, and architectural elements. * **Agriculture:** Implement frames, housing parts, and linkage components for farm equipment. * **Material Handling:** Conveyor frames, non-load-bearing hooks, and chutes. * **Textile and Food Processing:** Machine frames and components where corrosion resistance is not required. ## **7. Summary** **ASTM A27 Grade U-60-30** is the quintessential **economical, fabricable, and reliable workhorse** of the carbon steel casting world. It is selected not for high performance, but for its **unmatched combination of ease of fabrication (welding/machining), good ductility, and low cost**. This grade is ideal for high-volume production of components where the design is governed by stiffness and geometry rather than by high tensile or yield strength requirements. For countless non-critical, general-purpose applications, it remains the default and most value-conscious material specification. -:- For detailed product information, please contact sales. -: ASTM A27 Grade U-60-30 Cast Carbon Steel Specification Dimensions Size： Diameter 20-1000 mm Length <5858 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 A27 Grade U-60-30 Cast Carbon Steel Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A27 Grade U-60-30 Cast Carbon Steel Sheet,Plate -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A27 Grade U-60-30 Cast Carbon Steel Sheet,Plate -:- For detailed product information, please contact sales. -:

Packing of ASTM A27 Grade U-60-30 Cast Carbon Steel Sheet/Plate -:- 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 Sheet/Plate 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 2329 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