1,We Manufacturing processes are primarily classified into four types:
1:Forging,
2:Casting,
3:Cutting,
4:Rolling.
2,We can manufacture in accordance with these standards.
Standards:
GB Series (Chinese Standards), JB Series (Machinery Standards), HG Series (Chemical Industry Standards), ASME B16.5 (American Standards), BS4504 (British Standards), DIN (German Standards), and JIS (Japanese Standards).
Internationally, there are two primary systems of pipe flange standards: the European system, represented by the German DIN standards (including those of the former Soviet Union), and the American system, represented by the US ANSI pipe flange standards. Other common standards include: the Chinese Ministry of Machinery Industry standards (JB series), the Ministry of Chemical Industry standards (HG series), the Chinese National Standard *GB/T 9112–9124-2010 Steel Pipe Flanges*, as well as US standards (ASME B16.5), British standards (BS4504), German standards (DIN), Japanese standards (JIS), and marine standards (CBM), among others.
The nominal pressure ratings for the PN series are designated by "PN" and comprise the following nine levels: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, and PN160.
The nominal pressure ratings for the Class series are designated by "Class" and comprise the following six levels: Class150, Class300, Class600, Class900, Class1500, and Class2500.
Flange Classification
1. **According to Chemical Industry Standards:** Flanges are classified as follows:
Plate Flat Welding Flange (PL), Necked Flat Welding Flange (SO), Necked Butt Welding Flange (WN), Integral Flange (IF), Socket Welding Flange (SW), Threaded Flange (Th), Butt Welding Ring Loose Flange (PJ/SE), Blind Flange (BL), Flat Welding Ring Loose Flange (PJ/PJ), and Lined Blind Flange (BL(s)).
2. **According to Petrochemical (SH) Industry Standards:** Flanges are classified as follows:
Threaded Flange (PL), Butt Welding Flange (WN), Flat Welding Flange (SO), Socket Welding Flange (SW), Loose Flange (LJ), and Blind Flange (no specific designation).
3. **According to Machinery (JB) Industry Standards:** Flanges are classified as follows:
Integral Flange, Butt Welding Flange, Plate Flat Welding Flange, Butt Welding Ring Plate Loose Flange, Flat Welding Ring Plate Loose Flange, Lap Joint Ring Plate Loose Flange, and Blind Flange.
4. **According to Connection Method/Type:** Flanges are classified as follows:
Plate Flat Welding Flange, Necked Flat Welding Flange, Necked Butt Welding Flange, Socket Welding Flange, Threaded Flange, Blind Flange, Necked Butt Welding Ring Loose Flange, Flat Welding Ring Loose Flange, Ring-Type Joint (RTJ) Flange and Blind Flange, Large-Diameter Plate Flange, Large-Diameter High-Neck Flange, Figure-8 Blind Plate, Butt Welding Ring Loose Flange, etc.
5. **According to the Component Being Connected:** Flanges can be classified into Vessel Flanges and Pipe Flanges.
6. **According to Structural Type:** Flanges include Integral Flanges, Threaded Flanges, Flat Welding Flanges, Butt Welding Flanges, Lap Joint (Loose/Swivel) Flanges, and Blind Flanges.
A flange—also referred to as a flange plate or rim—is a component used to connect shafts to one another, or, more commonly, to join the ends of pipes. Flanges are also utilized at the inlet and outlet ports of equipment to facilitate connections between two devices—for instance, the flange on a speed reducer. A "flange connection" or "flanged joint" refers to a detachable joint assembly comprising three interconnected elements—a flange, a gasket, and bolts—that together form a sealed structural unit. In the context of piping systems, a "pipe flange" specifically denotes a flange used for plumbing within the installation; when applied to equipment, it refers to the inlet or outlet flange of that specific device. Flanges feature a series of holes through which bolts are inserted to securely fasten the two flanges together, while a gasket placed between the flanges ensures a leak-proof seal. Flanges are broadly categorized into three types: threaded (screw-in) flanges, welded flanges, and clamp-type flanges. Flanges are invariably used in pairs; threaded flanges are suitable for low-pressure piping applications, whereas welded flanges are required for systems operating at pressures exceeding 4 kilograms per square centimeter. A sealing gasket is inserted between the two flange plates, which are then firmly secured using bolts. The thickness of a flange—as well as the specifications of the bolts used to fasten it—vary depending on the specific pressure rating required for the application. When connecting equipment such as water pumps or valves to piping systems, the corresponding connection points on these devices are often manufactured in the shape of a matching flange; this method of attachment is also referred to as a "flange connection." Generally, any connecting component that utilizes bolts to join and seal the perimeters of two flat surfaces—such as the joints in ventilation ducts—is termed a "flange"; such components may collectively be classified as "flange-type parts." However, since such a connection often constitutes merely a *portion* of a larger device—for instance, the interface between a flange and a water pump—it would be inappropriate to classify the entire water pump itself as a "flange-type part." Conversely, smaller components—such as valves—that feature such flanged interfaces may indeed be appropriately categorized as "flange-type parts."
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AISI 1035 Steel Flange, cold drawn, 19-32 mm (0.75-1.25 in) round Product Information
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AISI 1035 Steel Flange, cold drawn, 19-32 mm (0.75-1.25 in) round Synonyms
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AISI 1035 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Product Information
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### **Product Technical Specification: AISI 1035 Steel - Cold Drawn Round Bars (19-32 mm / 0.75-1.25 in)**
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#### **1. Product Overview**
AISI 1035 cold drawn round bars are precision-engineered medium-carbon steel products manufactured through a cold drawing process that significantly enhances their mechanical properties, dimensional accuracy, and surface quality. This process involves pulling hot-rolled bars through a carbide die at room temperature, resulting in strain hardening and superior geometric characteristics. The 19-32 mm (0.75-1.25 in) diameter range represents one of the most commonly utilized sizes for precision mechanical components across diverse industries, offering optimal balance between strength and manufacturability.
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#### **2. Key Characteristics & Advantages**
- **Enhanced Mechanical Properties:** Cold working increases yield strength by 20-30% compared to hot-rolled equivalents
- **Superior Dimensional Accuracy:** Maintains tight diameter tolerances (typically ±0.075 mm / ±0.003 in or better)
- **Excellent Surface Finish:** Produces smooth, scale-free surface (1.6-3.2 µm Ra / 63-125 µin Ra) ideal for bearing applications
- **Improved Straightness:** Essential for rotating components and linear motion systems
- **Better Machinability:** Provides more consistent and predictable machining characteristics than as-rolled material
- **Good Heat Treatment Response:** Readily responds to quenching and tempering for additional strength enhancement
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#### **3. Chemical Composition (Standard Requirements)**
| Element | Content Range (%) | Specification Reference |
|---------|-------------------|-------------------------|
| **Carbon (C)** | 0.32 - 0.38 | 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 | - |
*Note: Some international standards may specify manganese range of 0.70-1.00% for this grade.*
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#### **4. Mechanical Properties (Cold Drawn Condition)**
| Property | Typical Range | Test Standard |
|----------|---------------|---------------|
| **Tensile Strength** | 550 - 690 MPa (80 - 100 ksi) | ASTM A370 |
| **Yield Strength (0.2% offset)** | 480 - 550 MPa (70 - 80 ksi) | ASTM A370 |
| **Elongation in 50 mm (2")** | 12% - 18% | ASTM A370 |
| **Reduction of Area** | 35% - 45% | ASTM A370 |
| **Brinell Hardness** | 179 - 229 HB | ASTM E10 |
| **Surface Roughness (Ra)** | 1.6 - 3.2 µm (63 - 125 µin) | ASME B46.1 |
| **Modulus of Elasticity** | 200 GPa (29,000 ksi) | ASTM E111 |
| **Shear Modulus** | 80 GPa (11,600 ksi) | ASTM E143 |
| **Poisson's Ratio** | 0.29 | ASTM E132 |
| **Density** | 7.87 g/cm³ (0.284 lb/in³) | - |
| **Machinability Rating** | ~65% (relative to 1212 steel) | - |
*Properties are typical for 19-32 mm diameter cold drawn bars.*
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#### **5. Physical & Thermal Properties**
| Property | Value |
|----------|-------|
| **Thermal Conductivity** | 51.9 W/m·K (36.0 BTU·in/hr·ft²·°F) |
| **Specific Heat Capacity** | 486 J/kg·K (0.116 BTU/lb·°F) |
| **Coefficient of Thermal Expansion** | 11.3 µm/m·°C (6.3 µin/in·°F) 20-100°C |
| **Electrical Resistivity** | 0.160 µΩ·m |
| **Magnetic Properties** | Ferromagnetic |
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#### **6. International Standard Equivalents**
| Standard System | Designation | Primary Specification |
|----------------|-------------|------------------------|
| **UNS** | G10350 | Unified Numbering System |
| **SAE/AISI** | 1035 | SAE J403 |
| **ASTM** | Grade 1035 | ASTM A108 (Cold-Finished) |
| **EN (Europe)** | 1.0501, 1.1151 (C35E) | EN 10083-2 |
| **ISO** | C35E | ISO 683-18 |
| **JIS (Japan)** | S35C | JIS G4051 |
| **GB (China)** | 35# | GB/T 699 |
| **DIN (Germany)** | 1.1151, Ck35 | DIN 17200 |
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#### **7. Primary Applications**
Cold drawn AISI 1035 rounds are specified for precision components requiring consistent dimensions, good strength, and reliable performance:
**Automotive & Transportation:**
- Axle shafts and drive shafts
- Steering linkage rods and pins
- Brake system components
- Transmission shafts
- Suspension components
**General Machinery & Equipment:**
- Hydraulic piston rods and cylinders
- Pump shafts and motor shafts
- Spindles and arbors for machine tools
- Guide rods for linear motion systems
- Precision fasteners and studs
**Industrial Hardware:**
- Valve stems and actuator rods
- Coupling and connector components
- Bearing races and sleeves
- Tool holders and fixtures
**Agricultural Equipment:**
- Implement drive shafts
- PTO components
- Cultivator shafts
- Harrow and plow pins
**Consumer Products:**
- Bicycle components
- Exercise equipment parts
- Hardware and tool components
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#### **8. Fabrication & Processing Characteristics**
**Machining Operations:**
- Excellent machinability in cold drawn condition
- Recommended cutting speeds: 40-60 m/min (130-200 ft/min) for turning
- Use carbide tools with positive rake angles
- Cutting fluids improve tool life and surface finish
- Stress relieving recommended after heavy machining
**Welding Procedures:**
- Pre-heating to 150-260°C (300-500°F) required
- Low-hydrogen electrodes (E7018, E8018) mandatory
- Post-weld heat treatment at 595-650°C (1100-1200°F) strongly recommended
- Limited to non-critical welds due to cold worked structure
**Heat Treatment Options:**
While often used as-drawn, AISI 1035 responds well to:
- **Annealing:** Heat to 790-815°C (1450-1500°F), slow cool to restore ductility
- **Normalizing:** 870-925°C (1600-1700°F), air cool for grain refinement
- **Quench & Temper:** Oil quench from 830-855°C (1525-1575°F), temper at 400-650°C (750-1200°F)
- **Surface Hardening:** Excellent candidate for induction hardening (50-55 HRC typical)
**Forming & Bending:**
- Moderate cold forming capability with proper radii
- Minimum bend radius: 2-3 times material thickness
- Stress relieving recommended after severe bending operations
- Hot forming preferred for complex shapes
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#### **9. Quality Assurance & Inspection**
- Certified mill test reports including chemical analysis and mechanical properties
- Dimensional tolerances per ASTM A108 Table A1.1 (cold-finished bars)
- Surface inspection per ASTM A108 Section 7
- Straightness tolerance: ≤0.3 mm per 300 mm (≤0.012 in per foot)
- Optional non-destructive testing available (ultrasonic, magnetic particle, dye penetrant)
- Standard lengths: 3-6 meters (10-20 feet), cut to length available
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#### **10. Storage & Handling Guidelines**
- Store in dry, covered areas to prevent corrosion
- Protect bright surfaces from physical damage
- Use appropriate lifting equipment to prevent bending
- Stack on flat, level supports with proper spacing
- Rotate stock using FIFO (first in, first out) system
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**Critical Application Notes:**
1. Cold drawn bars exhibit anisotropic properties (directionality in mechanical characteristics)
2. Stress concentrations should be carefully considered in design
3. For dynamic loading applications, consider stress relieving after machining
4. Not recommended for applications requiring high impact toughness in transverse direction
5. Always verify material certification and conduct application-specific testing for critical components
6. Consult with material engineers for applications involving cyclic loading or fatigue conditions
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**Disclaimer:** This technical specification provides general information about AISI 1035 cold drawn steel rounds. Actual properties may vary based on manufacturer, drawing parameters, and specific processing history. For engineering design purposes, consult official material specifications (ASTM A108) and conduct appropriate validation testing. Professional engineering judgment should always be applied for safety-critical applications.
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AISI 1035 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Specification
Dimensions
Size:
Diameter 20-1000 mm Length <4792 mm
Size:We can customized as required
Standard:
Per your request or drawing
We can customized as required
Properties(Theoretical)
Chemical Composition
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AISI 1035 Steel, cold drawn, 19-32 mm (0.75-1.25 in) round Properties
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Applications of AISI 1035 Steel Flange, cold drawn, 19-32 mm (0.75-1.25 in) round
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Chemical Identifiers AISI 1035 Steel Flange, cold drawn, 19-32 mm (0.75-1.25 in) round
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Packing of AISI 1035 Steel Flange, cold drawn, 19-32 mm (0.75-1.25 in) round
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Standard Packing:
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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Flange 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 1263 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