AISI 1025 Steel, turned, ground, and polished

AISI 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: AISI 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round Synonyms -:- For detailed product information, please contact sales. -:

AISI 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round Product Information -:- For detailed product information, please contact sales. -: ### **Product Datasheet: AISI 1025 Turned, Ground & Polished (TGP) Steel Round Bars (19-32 mm / 0.75-1.25 in)** --- #### **1. Product Overview** AISI 1025 TGP (Turned, Ground & Polished) round bars represent a premium-grade form of low-carbon steel engineered for precision applications. The TGP manufacturing process—involving turning to achieve dimensional accuracy, grinding for tight tolerances, and polishing for superior surface finish—transforms standard hot-rolled stock into high-performance shafting material. Bars in the 19-32 mm (0.75-1.25 in) diameter range are industry-preferred for components requiring smooth operation, exact dimensions, and reliable interaction with seals and bearings. #### **2. Key Characteristics & Advantages** - **Exceptional Surface Quality:** Polishing yields surface roughness values typically between **Ra 0.4-0.8 μm (16-32 μin)**, minimizing friction and wear on seals and bearings. - **Precision Dimensional Control:** TGP processing ensures diameters are held to tight tolerances (commonly **±0.025 mm / ±0.001 in** or better), eliminating the need for secondary machining in most applications. - **Superior Straightness:** Essential for high-rotation or linear-motion components to prevent vibration and premature failure. - **Excellent Case Hardening Suitability:** The clean, decarb-free surface provides an ideal substrate for carburizing or induction hardening, enabling a hard, wear-resistant surface over a tough, ductile core. - **Inherent Weldability & Formability:** Maintains the core advantages of low-carbon steel for post-processing modifications. #### **3. Chemical Composition (Standard Conformity)** | Element | Composition (% weight) | Standard Reference | |-----------|------------------------|------------------------| | Carbon (C) | 0.22 - 0.28 | ASTM A108 / SAE J403 | | Manganese (Mn) | 0.30 - 0.60 | ASTM A108 / SAE J403 | | Phosphorus (P) | ≤ 0.040 | ASTM A108 / SAE J403 | | Sulfur (S) | ≤ 0.050 | ASTM A108 / SAE J403 | | Iron (Fe) | Balance | - | #### **4. Typical Mechanical & Physical Properties (As-Delivered TGP Condition)** | Property | Value / Range | Test Standard | |-----------------------------------|--------------------------------|-----------------------| | Tensile Strength | 410 - 480 MPa (60 - 70 ksi) | ASTM A370 | | Yield Strength (0.2% offset) | ≥ 250 MPa (≥ 36 ksi) | ASTM A370 | | Elongation in 50mm (2") | ≥ 25% | ASTM A370 | | Brinell Hardness (Core) | 126 - 179 HB | ASTM E10 | | Surface Roughness | 0.4 - 0.8 μm Ra (16-32 μin Ra)| ASME B46.1 | | Modulus of Elasticity | 200 GPa (29×10⁶ psi) | ASTM E111 | | Density | 7.87 g/cm³ (0.284 lb/in³) | - | #### **5. International Standards & Grade Equivalents** | Standard System | Equivalent Designation | Primary Specification | |-----------------|--------------------------------|----------------------------------| | ASTM/SAE | AISI 1025, UNS G10250 | ASTM A108 (Cold-Finished Bars) | | EN (Europe) | 1.0406 (C25E) | EN 10083-2 | | ISO | Type C25E | ISO 683-18 | | JIS (Japan) | S25C | JIS G4051 | | GB (China) | 25# | GB/T 699 | #### **6. Primary Applications** TGP 1025 rounds excel in precision mechanical systems requiring smooth surfaces and dimensional accuracy: - **Linear Motion Components:** - Shafts for linear bearings and ball bushings - Guide rods in automation equipment and CNC machinery - **Fluid Power Systems:** - Hydraulic and pneumatic cylinder rods - Pump shafts and valve stems - **Power Transmission:** - Case-hardened gear shafts and spindle shafts - Camshafts and eccentric shafts - **General Precision Engineering:** - Mandrels and arbors - Pivot pins and dowel pins - Electroplating base material (chrome/nickel plating) #### **7. Processing & Fabrication Notes** - **Machinability:** Excellent (approximately 65% of 1212 steel reference) - **Weldability:** Very good - all standard methods applicable without pre-heat - **Heat Treatment:** Responsive to case hardening (carburizing, carbonitriding) achieving surface hardness up to 60-65 HRC - **Straightness Tolerance:** Typically ≤ 0.5 mm per meter (0.006 in per ft) - **Available Conditions:** Bright polished, occasionally available with protective coating #### **8. Quality Assurance** Material certification to ASTM A108 or equivalent standard including: - Chemical analysis report - Mechanical properties verification - Surface finish measurement - Dimensional inspection report --- **Note:** This datasheet provides typical values. For specific application requirements, consult technical personnel and request certified mill test reports. Performance may vary based on manufacturer processes and heat treatment applications. -:- For detailed product information, please contact sales. -: AISI 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round Specification Dimensions Size： Diameter 20-1000 mm Length <4784 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 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round Properties -:- For detailed product information, please contact sales. -:

Applications of AISI 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -: Chemical Identifiers AISI 1025 Steel, turned, ground, and polished, 19-32 mm (0.75-1.25 in) round -:- For detailed product information, please contact sales. -:

Packing of AISI 1025 Steel, turned, ground, and polished, 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 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 1255 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