AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel

AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) Product Information -:- For detailed product information, please contact sales. -: AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) Synonyms -:- For detailed product information, please contact sales. -:

AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: AK Steel ASTM A907 Grade 33 Hot Rolled Carbon Steel** **AK Steel ASTM A907 Grade 33 (SQ)** is a **hot-rolled carbon steel sheet and strip** produced in **heavy thickness coils** for structural applications requiring a **balanced combination of strength and formability**. With a **minimum yield strength of 33 ksi (230 MPa)**, this grade offers a moderate strength increase over the base Grade 30 while maintaining **excellent fabrication characteristics**. It is specifically designed for **further processing from coil to final formed components**, providing consistent mechanical properties and surface quality ideal for structural fabrication and manufacturing. --- ## **International Standard & Key Specifications** * **Primary Standard:** **ASTM A907/A907M** - Standard Specification for Steel, Sheet and Strip, Heavy Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing, Structural, and High-Strength Low-Alloy, Grades 30[205] Through 70[480]. * **Production Form:** **Heavy thickness coils** - Designed for processing into cut lengths or further formed products. * **Quality Designation:** **Structural Quality (SQ)** - Meets standard requirements for structural applications. * **Related Standards:** * **ASTM A568/A568M** - General Requirements for Steel Sheet. * **ASTM A1011/A1011M** - Specification for Hot-Rolled Structural Steel. * **Key Feature:** Consistent quality from coil processing with uniform properties throughout production runs. --- ## **Chemical Composition (Weight %, max unless range specified)** The chemistry is optimized to achieve 33 ksi yield strength while maintaining good weldability and formability. | Element | Composition (%) | Role in Performance | | :--- | :--- | :--- | | **Carbon (C)** | 0.25 max | Provides base strength while maintaining good formability. | | **Manganese (Mn)** | 0.90 max | Enhances strength and hardenability. | | **Phosphorus (P)** | 0.04 max | Impurity, kept low for formability. | | **Sulfur (S)** | 0.05 max | Impurity, controlled for weldability. | | **Silicon (Si)** | 0.30 max | Deoxidizer and solid solution strengthener. | | **Copper (Cu)** | 0.20 min (when specified) | Optional for improved corrosion resistance. | | **Carbon Equivalent (CE)** | Typically ≤ 0.36 | Indicates good weldability with minimal preheat. | **Note:** Chemistry may be adjusted within limits to optimize processing and final properties. --- ## **Typical Physical & Mechanical Properties (Hot-Rolled, Grade 33)** | Property | Value / Description | | :--- | :--- | | **Tensile Strength** | 360 - 500 MPa (52,000 - 73,000 psi) | | **Yield Strength (min)** | **230 MPa (33,000 psi)** | | **Elongation in 2-in (50 mm) (min)** | **25%** | | **Modulus of Elasticity** | ~200 GPa (29 x 10⁶ psi) | | **Density** | ~7.85 g/cm³ (0.284 lb/in³) | | **Formability** | **Excellent.** Suitable for moderate to severe forming. Minimum bend radius typically **0.5 × thickness**. | | **Weldability** | **Excellent.** Can be welded using all common processes. | | **Surface Finish** | Standard hot-rolled; available pickled and oiled. | --- ## **Product Applications** Ideal for components requiring good formability with moderate strength requirements. 1. **Structural Components:** - **Purlins, girts, and framing members** - **Light structural supports and brackets** - **Roll-formed building products** 2. **Transportation Equipment:** - **Trailer and truck body components** - **Mounting brackets and supports** - **Agricultural equipment parts** 3. **Manufacturing & Fabrication:** - **Formed brackets and hardware** - **Base plates and mounting plates** - **General fabrication components** 4. **Building Products:** - **Metal framing systems** - **Architectural metalwork** - **Formed flashing and trim** --- ## **Advantages and Fabrication Considerations** * **Advantages:** - **Balanced Properties:** Good strength with excellent formability - **Consistent Quality:** Uniform properties from coil processing - **Cost-Effective:** Competitive pricing for structural applications - **Versatile:** Suitable for various fabrication methods * **Fabrication Considerations:** - **Surface Preparation:** Remove mill scale for painting/coating - **Forming Tools:** Use proper tooling for complex shapes - **Welding:** Standard practices generally sufficient - **Corrosion Protection:** Requires coatings for exterior use **In summary, AK Steel ASTM A907 Grade 33 provides reliable 33 ksi yield strength with excellent fabrication characteristics, making it a practical choice for light to medium structural applications requiring good formability and weldability from coil-processed material.** -:- For detailed product information, please contact sales. -: AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) Specification Dimensions Size： Diameter 20-1000 mm Length <4562 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. -: AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) Properties -:- For detailed product information, please contact sales. -:

Applications of AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) -:- For detailed product information, please contact sales. -: Chemical Identifiers AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) -:- For detailed product information, please contact sales. -:

Packing of AK Steel ASTM A 907, Grade 33 Hot Rolled Carbon Steel, Structural Quality (SQ) -:- 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 1033 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