AISI 1030 Steel Seamless tube

AISI 1030 Steel Seamless tube, cold drawn, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1030 Steel Seamless tube, cold drawn, 19-32 mm (0.75-1.25 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1030 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: ### **Product Technical Specification: AISI 1030 Cold Drawn Steel Round Bars (19-32 mm / 0.75-1.25 in)** --- #### **1. Product Overview** AISI 1030 cold drawn steel rounds are precision-engineered medium-carbon steel bars produced through a cold drawing process that enhances their mechanical properties, dimensional accuracy, and surface quality. This manufacturing method involves pulling hot-rolled bars through a die at room temperature, resulting in improved strength characteristics through strain hardening. The 19-32 mm (0.75-1.25 in) diameter range represents one of the most versatile and commonly used sizes for precision mechanical components across multiple industries. --- #### **2. Key Characteristics & Advantages** * **Enhanced Mechanical Properties:** Cold working significantly increases yield and tensile strength compared to hot-rolled equivalents * **Superior Dimensional Control:** Maintains tight diameter tolerances (typically ±0.075 mm / ±0.003 in) for precision applications * **Excellent Surface Finish:** Produces a smooth, scale-free surface (approximately 1.6-3.2 μm Ra or 63-125 μin Ra) ideal for bearing surfaces and assemblies * **Improved Machinability:** The cold drawn condition provides more consistent and predictable machining characteristics * **Good Heat Treatment Response:** Readily responds to quenching and tempering for additional strength enhancement * **Better Straightness:** Cold drawing improves straightness characteristics for rotating and linear motion applications --- #### **3. Chemical Composition (Standard Conformity)** | Element | Composition (% weight) | Standard Reference | |-----------------|------------------------|------------------------| | Carbon (C) | 0.28 - 0.34 | ASTM A108 / SAE J403 | | Manganese (Mn) | 0.60 - 0.90 | ASTM A108 / SAE J403 | | Phosphorus (P) | ≤ 0.040 | ASTM A108 / SAE J403 | | Sulfur (S) | ≤ 0.050 | ASTM A108 / SAE J403 | | Silicon (Si) | 0.15 - 0.35 | ASTM A108 / SAE J403 | | Iron (Fe) | Balance | - | --- #### **4. Typical Mechanical & Physical Properties (Cold Drawn Condition)** | Property | Value / Range | Test Standard | |-----------------------------------|--------------------------------|-----------------------| | Tensile Strength | 520 - 620 MPa (75 - 90 ksi) | ASTM A370 | | Yield Strength (0.2% offset) | 400 - 480 MPa (58 - 70 ksi) | ASTM A370 | | Elongation in 50mm (2") | 12% - 20% | ASTM A370 | | Brinell Hardness | 149 - 197 HB | ASTM E10 | | Surface Roughness | 1.6 - 3.2 μm Ra (63-125 μin) | ASME B46.1 | | Modulus of Elasticity | 200 GPa (29×10⁶ psi) | ASTM E111 | | Density | 7.87 g/cm³ (0.284 lb/in³) | - | | Machinability Rating | 65% (vs. 100% for 1212 steel) | - | --- #### **5. International Standards & Grade Equivalents** | Standard System | Equivalent Designation | Primary Specification | |-----------------|--------------------------------|----------------------------------| | ASTM/SAE | AISI 1030, UNS G10300 | ASTM A108 (Cold-Finished Bars) | | EN (Europe) | 1.1158 (C30E) | EN 10083-2 | | ISO | Type C30E | ISO 683-18 | | JIS (Japan) | S30C | JIS G4051 | | GB (China) | 30# | GB/T 699 | | DIN | Ck30 / 1.1158 | DIN 17200 | --- #### **6. Primary Applications** Cold drawn AISI 1030 rounds are specified for precision components requiring consistent dimensions, good strength, and reliable performance: * **Automotive Components:** * Axle shafts and drive shafts * Gear blanks and transmission parts * Steering linkage components * Brake system components * **General Machinery & Equipment:** * Hydraulic piston rods and cylinders * Shafts for pumps and motors * Spindles and arbors for machine tools * Guide rods and linear motion shafts * **Fastener Manufacturing:** * High-strength bolts (Grade 8.8 equivalents) * Studs and threaded rods * Precision pins and dowels * **Industrial Hardware:** * Valve stems and components * Couplings and connectors * Bearing races and sleeves * **Agricultural Equipment:** * Implement shafts and PTO components * Wear-resistant pins and bushings * Tiller and cultivator parts --- #### **7. Heat Treatment & Processing Characteristics** * **Machinability:** Good in cold drawn condition; responds well to modern cutting tools with appropriate coolants and speeds * **Weldability:** Fair; requires pre-heating (150-260°C / 300-500°F) and post-weld heat treatment for optimal results * **Heat Treatment Options:** - **Annealing:** Heat to 790-815°C (1450-1500°F), slow cool for improved machinability - **Normalizing:** Heat to 870-925°C (1600-1700°F), air cool for grain refinement - **Quenching & Tempering:** Heat to 830-855°C (1525-1575°F), quench in oil, temper at 400-650°C (750-1200°F) for enhanced strength - **Surface Hardening:** Excellent candidate for flame or induction hardening (typically achieving 50-55 HRC surface hardness) * **Cold Forming:** Capable of moderate bending and forming operations * **Straightness Tolerance:** Typically ≤ 0.3 mm per 300 mm (0.012 in per foot) --- #### **8. Quality Assurance** Material supplied to ASTM A108 includes comprehensive certification: * Certified heat/lot chemical analysis * Mechanical property test reports * Dimensional inspection reports * Surface condition verification * Optional NDT testing (ultrasonic, magnetic particle) available * Compliance with ASTM A108 specifications --- **Important Notes:** 1. Cold drawn bars exhibit directional properties (anisotropy) which should be considered in critical applications 2. Stress relieving (heating to 550-650°C / 1020-1200°F) is recommended after severe machining operations to relieve internal stresses 3. For applications requiring maximum impact toughness, specify normalized or annealed-and-tempered condition 4. Always verify material certification and conduct application-specific testing for critical components 5. The cold drawn condition provides optimal characteristics for components that will be used without further heat treatment -:- For detailed product information, please contact sales. -: AISI 1030 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4788 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 1030 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1030 Steel Seamless tube, cold drawn, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1030 Steel Seamless tube, cold drawn, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1030 Steel Seamless tube, cold drawn, 19-32 mm (0.75-1.25 in) round -:- 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 1259 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