ASTM A570 Steel, grade 30

ASTM A570 Steel, grade 30 Product Information -:- For detailed product information, please contact sales. -: ASTM A570 Steel, grade 30 Synonyms -:- For detailed product information, please contact sales. -:

ASTM A570 Steel, grade 30 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A570 Grade 30 Steel** **ASTM A570 Grade 30** is a standard specification for steel plate and strip intended for structural applications, providing a minimum yield strength of **30 ksi (205 MPa)**. As part of the A570 series, this grade represents an economical carbon steel solution for general structural purposes where high strength is not the primary requirement. Its balanced combination of adequate strength, formability, and weldability makes it suitable for a wide range of fabricated components across various industries. --- #### **1. International Standards & Grades** **Primary Standard:** **ASTM A570/A570M** - "Standard Specification for Steel, Sheet and Strip, Carbon, Hot-Rolled, Structural Quality" **Grade Classification:** - **Grade 30** [205 MPa] - Minimum yield strength 30 ksi - Other grades in A570 series: 33, 36, 40, 45, 50, 55 **International Equivalents:** - **EN 10025-2**: S235JR - **JIS G3101**: SS330 - **ISO 630-2**: E235A --- #### **2. Chemical Composition** The chemical composition requirements for ASTM A570 Grade 30: | Element | Composition (Maximum %) | |---|---| | Carbon (C) | 0.25 | | Manganese (Mn) | 0.90 | | Phosphorus (P) | 0.04 | | Sulfur (S) | 0.05 | | Silicon (Si) | 0.40 (optional) | **Key Composition Features:** - **Simple Carbon Steel Chemistry**: No mandatory alloying elements - **Moderate Carbon Content**: Balances strength and formability - **Economical Formula**: Utilizes cost-effective raw materials - **Optional Silicon**: May be added for deoxidation practice --- #### **3. Physical & Mechanical Properties** **Mechanical Properties:** | Property | Value | |---|---| | **Tensile Strength** | 410-480 MPa (60-70 ksi) | | **Yield Strength (min.)** | 205 MPa (30 ksi) | | **Elongation in 2" (min.)** | 21% | | **Elongation in 8" (min.)** | 24% | **Physical Properties:** - **Density**: 7.85 g/cm³ (0.284 lb/in³) - **Modulus of Elasticity**: 200 GPa (29,000 ksi) - **Poisson's Ratio**: 0.29 - **Thermal Conductivity**: 51.9 W/m·K - **Specific Heat Capacity**: 486 J/kg·K --- #### **4. Product Applications** **Building & Construction:** - Building frames and supports - Roof decking and floor panels - Wall studs and framing members - Secondary structural components **Transportation Equipment:** - Truck body panels and floors - Trailer side panels and roofs - Automotive structural reinforcements - Railway car interior panels **Industrial Equipment:** - Machinery guards and covers - Equipment housings and enclosures - Conveyor system components - Storage rack components **Agricultural Applications:** - Tractor shrouds and covers - Implement frames and supports - Grain storage components - Equipment access panels **Commercial Products:** - Office furniture frames - Storage cabinet components - Display rack structures - Signage support frames --- #### **5. Fabrication Characteristics** **Welding:** - **Excellent Weldability**: All standard welding processes applicable - **Preheat Requirements**: Generally not required - **Recommended Processes**: SMAW, GMAW, FCAW, Resistance welding - **Filler Metals**: E60XX or E70XX series electrodes **Forming & Machining:** - **Cold Forming**: Excellent formability with standard equipment - **Bend Radius**: Typically 0.5t to 1t for 90° bends - **Machinability**: Good (approximately 70% of B1112 steel) - **Punching & Shearing**: Excellent performance with standard tooling **Surface Finish:** - Standard hot-rolled surface finish - Mill scale typically present - Suitable for painting and coating after surface preparation **Heat Treatment:** - Supplied in hot-rolled condition - Stress relieving available when specified - Annealing possible for improved formability --- ### **Technical Summary** ASTM A570 Grade 30 represents an economical and versatile structural steel suitable for a broad range of general fabrication applications. Its simple carbon steel composition provides adequate strength while maintaining excellent formability and weldability characteristics. The grade is particularly valuable in applications where cost-effectiveness is prioritized over high strength requirements. While it doesn't offer the specialized properties of high-strength or alloy steels, its consistent performance and ease of fabrication make it a popular choice for structural components in construction, transportation, and industrial equipment manufacturing. The material's straightforward processing requirements allow for efficient manufacturing without the need for specialized equipment or complex procedures, making it an ideal choice for high-volume production environments. -:- For detailed product information, please contact sales. -: ASTM A570 Steel, grade 30 Specification Dimensions Size： Diameter 20-1000 mm Length <4292 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 A570 Steel, grade 30 Properties -:- For detailed product information, please contact sales. -:

Applications of ASTM A570 Steel, grade 30 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A570 Steel, grade 30 -:- For detailed product information, please contact sales. -:

Packing of ASTM A570 Steel, grade 30 -:- 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 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 763 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