AISI 1335 Steel Seamless tube

AISI 1335 Steel Seamless tube Product Information -:- For detailed product information, please contact sales. -: AISI 1335 Steel Seamless tube Synonyms -:- For detailed product information, please contact sales. -:

AISI 1335 Steel Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: AISI 1335 Medium-Carbon Manganese Alloy Steel** **AISI 1335** is a versatile and widely used medium-carbon manganese alloy steel. Belonging to the **AISI 13xx series**, it is characterized by a higher manganese content than standard carbon steels, which significantly enhances its hardenability, strength, and wear resistance. This grade is specifically engineered to be heat-treated (quenched and tempered) to achieve a favorable combination of high strength and good toughness. It is a common choice for manufacturing high-strength mechanical components that undergo significant stress, shock, or abrasion. --- ### **1. Chemical Composition** The chemical composition defines the foundational properties of AISI 1335, with manganese being the key alloying element that differentiates it from plain carbon steels. | Element | Content (% by weight) - AISI 1335 | | :--- | :--- | | **Carbon (C)** | 0.33 - 0.38 | | **Manganese (Mn)** | 1.60 - 1.90 | | **Phosphorus (P)** | 0.035 max | | **Sulfur (S)** | 0.040 max | | **Silicon (Si)** | 0.15 - 0.35 | | **Iron (Fe)** | Balance | **Key Role of Alloying Elements:** * **Carbon (C):** Provides the primary source of hardness and tensile strength through the formation of martensite during quenching. The 0.33-0.38% range places it firmly in the medium-carbon category, ideal for high-strength parts. * **Manganese (Mn):** The defining alloy. It dramatically increases the depth and uniformity of hardness during quenching (hardenability), improves tensile strength, and enhances wear resistance. It also aids in deoxidation during steelmaking. * **Silicon (Si):** Primarily acts as a deoxidizer and strengthens the ferrite phase, contributing to overall strength. --- ### **2. Physical & Mechanical Properties** The final properties are highly dependent on the heat treatment condition (e.g., annealed, normalized, or quenched & tempered). The values below represent typical ranges after proper quenching and tempering. **A. Physical Properties (Approximate)** * **Density:** 7.85 g/cm³ (0.284 lb/in³) * **Elastic Modulus (Young's Modulus):** 190-210 GPa (29,000-30,500 ksi) * **Poisson's Ratio:** 0.29 * **Melting Point:** ~ 1500-1520°C (2732-2768°F) **B. Mechanical Properties (After Quenching & Tempering)** * **Tensile Strength:** 700 - 1000 MPa (102,000 - 145,000 psi) * **Yield Strength:** 550 - 850 MPa (80,000 - 123,000 psi) * **Elongation (in 50mm):** 15% - 22% * **Reduction in Area:** 35% - 50% * **Hardness (Brinell):** 200 - 350 HB (common tempered range: 250-300 HB) * **Impact Toughness (Charpy V-Notch):** Good to excellent, depending on the tempering temperature. Higher tempering temperatures improve toughness. --- ### **3. International Standards & Equivalent Grades** AISI 1335 is a U.S. standard. Its equivalents in other international systems are listed below. The **"H" variant (1335H)** also exists for applications requiring guaranteed hardenability. | Standard / Country | Equivalent Grade | Note | | :--- | :--- | :--- | | **UNS (USA)** | G13350 | Unified Numbering System | | **SAE (USA)** | SAE J404, J412, J414 (1335) | SAE Automotive Standard | | **ASTM (USA)** | A29/A29M (1335) | Standard Specification for Steel Bars | | **DIN (Germany)** | 36Mn6 (~) | A close compositional match | | **EN (Europe)** | 1.5066 / 36Mn6 | Designation under EN 10083-3 | | **JIS (Japan)** | SMn438 (~) | Similar Japanese alloy steel grade | | **ISO (International)** | - | Refer to national equivalents like 36Mn6 | --- ### **4. Product Applications** AISI 1335 is commonly supplied as **round bars, hexagonal bars, flats, forging billets, and occasionally as plate**. Its primary applications are in components that are machined and subsequently heat-treated to achieve high strength. **Key Industry Sectors and Components:** * **Automotive & Transportation:** * **Axle Shafts & Drive Shafts** * **High-Strength Bolts, Studs, and Fasteners** (e.g., Grade 8.8 and above) * **Gears and Pinions** (for medium-duty applications) * **Crankshafts & Connecting Rods** * **Suspension Components** (e.g., spindle bolts) * **General Manufacturing & Machinery:** * **Hydraulic Cylinder Rods and Piston Rods** * **Machine Tool Components** (shafts, spindles, collets) * **Agricultural Implement Parts** (plow beams, tines, drive components) * **Pump Shafts and Valve Parts** * **Oil & Gas Industry:** * **Downhole Tool Components** * **Non-critical wellhead parts** * **Hand Tools & Hardware:** * **Wrenches, Sockets, and High-Strength Tool Bodies** --- ### **5. Heat Treatment, Machinability & Weldability** * **Heat Treatment:** AISI 1335 achieves its optimal properties through **quenching and tempering**. * **Austenitizing:** Heat to approximately **830°C - 850°C (1525°F - 1560°F)**. * **Quenching:** Rapidly cool in **oil**. Due to its good hardenability, oil quenching is standard to achieve a fully martensitic structure while minimizing the risk of distortion or cracking associated with water quenching. * **Tempering:** Reheat to a temperature typically between **400°C - 600°C (750°F - 1110°F)** to achieve the desired balance of hardness, strength, and toughness. * **Machinability:** In the annealed or normalized condition, AISI 1335 has a **fair machinability rating**, approximately **60-65%** relative to AISI 1212 free-machining steel. It requires more power and sharp tools than low-carbon steels but is readily machinable with proper techniques. * **Weldability:** **Fair to Poor.** Welding requires strict procedures: * **Preheating (200-300°C / 400-570°F)** is highly recommended, especially for thicker sections. * Use **low-hydrogen welding electrodes/processes**. * **Post-Weld Heat Treatment (PWHT - stress relieving or full re-tempering) is almost always necessary** to restore ductility and toughness in the Heat-Affected Zone (HAZ) and prevent cracking. ### **Summary** **AISI 1335** is a robust and economical medium-carbon alloy steel that offers a significant performance upgrade over plain carbon steels like 1035 or 1045. Its elevated manganese content provides excellent hardenability, allowing it to be effectively heat-treated to high strength levels in larger cross-sections. This makes it a **workhorse material** for a vast array of high-stress, wear-resistant components across the automotive, machinery, and tooling industries. For applications demanding absolute consistency in heat treatment response across large production runs, the **AISI 1335H** variant should be specified. -:- For detailed product information, please contact sales. -: AISI 1335 Steel Specification Dimensions Size： Diameter 20-1000 mm Length <4002 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. -: AISI 1335 Steel Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1335 Steel Seamless tube -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1335 Steel Seamless tube -:- For detailed product information, please contact sales. -:

Packing of AISI 1335 Steel Seamless tube -:- 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 Seamless tube 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 473 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