20CrMnTi Steel Pipe, Seamless 20CrMnTi Pipe, 20CrMnTi Seamless Steel Pipe, Manufacturer's Price for Hot Rolled 20CrMnTi Steel Pipe 20CrMnTi is a carburizing steel, typically a low-carbon steel with a carbon content of 0.17%-0.24%. It is commonly used in the manufacture of transmission gears in vehicles, being a high-hardness carburizing steel with high quenchability, especially with excellent low-temperature impact toughness. 20CrMnTi is suitable for surface carburizing hardening treatment. It has good machinability, minimal deformation during processing, and excellent fatigue resistance. Main applications include shafts, piston components, and various special parts for cars and airplanes.

Brief introduction

20CrMnTi Steel Pipe, 20CrMnTi Seamless Pipe, 20CrMnTi Seamless Steel Pipe - Manufacturer's Price, Features, and Application Range:

It is a high-performance carburizing steel with good hardenability, featuring a hard surface and tough core after carburizing and quenching. It boasts high low-temperature impact toughness, moderate weldability, and excellent machinability after normalizing. Suitable for manufacturing critical components subjected to high-speed, medium, or heavy loads, impacts, and friction with cross-sections less than 30mm, such as gears, gear rings, gear shaft crossheads, etc. It is a substitute for 18CrMnTi steel, used for carburizing parts in the automotive and tractor industries. It is essential for critical carburizing components with cross-sections below 30mm, subjected to high-speed, medium, or heavy loads, as well as impacts and friction, such as gears, shafts, gear rings, gear shafts, main shafts of sliding bearings, crossheads, claw clutches, worms, etc.

20CrMnTi Steel Pipe, 20CrMnTi Seamless Pipe, 20CrMnTi Seamless Steel Pipe, 20CrM Hot Rolled Steel Pipe Factory Price Chemical Composition Update Broadcast

20CrMnTi Seamless Steel Pipe Chemical Composition

Carbon C: 0.17～0.23

20CrMnTi

20CrMnTi

Silicon (Si): 0.17～0.37

Manganese (Mn): 0.80～1.10

Chromium (Cr): 1.00～1.30

Sulfur (S): Not greater than 0.030%

High-grade steel not exceeding 0.020

Steel not greater than 0.010

Phosphorus (P): Not more than 0.030%

High-grade steel, not exceeding 0.020 inches.

Steel not greater than 0.020

Nickel (Ni): Steel not exceeding 0.30%

High-grade steel not exceeding 0.30

Steel not exceeding 0.30

Copper Cu (Note 1): Steel not exceeding 0.30

High-grade steel not exceeding 0.25

Steel not exceeding 0.25

Titanium (Ti): 0.04～0.10

Note 1: The copper content of steel used for hot-pressure processing does not exceed 0.2%.

20CrMnTi steel pipe, 20CrMnTi seamless pipe, 20CrMnTi seamless steel tube manufacturer's price, mechanical properties:

Tensile Strength σb (MPa): ≥1080 (110)

Yield Strength σs (MPa): ≥835 (85)

δ5 elongation (%): ≥10

Finished Gear Steel Product Image

Finished Gear Steel Product Image

Section reduction rate ψ (%): ≥45

Impact Energy Akv (J): ≥55

Impact toughness value αkv (J/cm2): ≥69(7)

Hardness: ≤217HB

Sample Size: Sample blank size is 15mm

20CrMnTi Density: 7.8 × 10^3 kg/m^3

Elastic Modulus: 207 GPa

Poisson's ratio: 0.25

Thermal Conductivity: 1.26×10^-5 (1/℃)

20CrMnTi Steel Pipe, 20CrMnTi Seamless Pipe, 20CrMnTi Seamless Steel Pipe, 20CrM Hot-Rolled Steel Pipe Factory Price, Steel Mill Specifications

Cold Drawn Bright Round Bar

F3.0-100 Heavy-duty

20CrMnTi

Hot-rolled round steel

F100-200 heavy-duty

20CrMnTi

Hot-rolled round steel

20-100mm Heavy-duty

20CrMnTi

Hot-rolled round steel

F200-400 heavy-duty

Editorial on Heat Treatment Specifications for 20CrMnTi

Heat treatment specifications and metallographic structure:

Heat Treatment Specifications: Quenching: 880°C, 870°C, oil cooled; Tempering: 200°C, water or air cooled.

Detailed heat treatment specifications and mechanical properties:

20CrMnTi round steel

20CrMnTi Round Steel

Trial blank size/mm: 15

Heat Treatment | Quenching | Heating Temperature / °C | Quenching: 880

Heat Treatment | Quenching | Heating Temperature / °C | Quenching Times: 870

Heat Treatment | Quenching | Coolant: Oil

Heat Treatment | Tempering | Heating Temperature/°C: 200

Heat Treatment | Tempering | Cooling Agent: Water, Air

Mechanical Properties | Tensile Strength σb/MPa | ≥ 1080

Mechanical Properties | Yield Point σs/MPa | ≥ 850

Mechanical Properties | Elongation δ5 (%) | ≥ 10

Mechanical Properties | Elongation ψ (%) | ≥ 45

Mechanical Properties | Impact Absorption Work AKV/J | ≥ 55

Delivery Condition Hardness HBS ≥: 217

Heat Treatment Specifications and Microstructure

Heat Treatment Specifications: Quenching: 880°C, 870°C, oil cooled; Tempering: 200°C, water or air cooled.

Metallic Structure: Tempered Martensite.

Delivery Condition: Shipped in heat-treated (normalizing, annealing, or high-temperature quenching) or non-heat-treated condition, as specified in the contract.

Density and Elastic Modulus of 20CrMnTi:

Density: 7.8×10^3 kg/m^3 Elastic Modulus: 207 GPa Poisson's Ratio: 0.25 Thermal Conductivity: 1.26×10^-5 W/(m·°C)

20CrMnTi Normalized

Normalizing of 20CrMnTi: The isothermal normalizing process of 20CrMnTi steel, which involves heating to 860℃ and then holding and quenching to 680℃ followed by air cooling, versus the high-temperature normalizing process of heating to 960℃ and then holding and mist cooling. The differences and functions of the two processes.

20CrMnTi Steel Pipe, 20CrMnTi Seamless Pipe, 20CrMnTi Seamless Steel Pipe, 20CrM Hot Rolled Steel Pipe Manufacturer's Pricing Method

① The two-digit number at the beginning of the steel grade indicates the carbon content of the steel, expressed as a few parts per ten thousand of the average carbon content, such as the alloy tube 40Cr, 25Cr2MoVA. ② The main alloy elements in the steel, except for a few micro-alloy elements, are generally indicated by a few percentages. When the average alloy content is less than 1.5%, the steel grade usually only shows the element symbol without specifying the content. However, in special cases where it may cause confusion, a number "1" can also be added after the element symbol, for example, in the steel grades "12CrMoV" and "12Cr1MoV", the former contains 0.4-0.6% chromium, and the latter contains 0.9-1.2%, with all other components being identical. When the average content of the alloy elements is ≥1.5%, ≥2.5%, ≥3.5%... and so on, the content should be indicated after the element symbol, which can be represented by numbers 2, 3, 4... etc. For instance, 18Cr2Ni4WA.

③ Vanadium (V), titanium (Ti), aluminum (Al), boron (B), and rare earth elements (RE) in steel are all micro-alloying elements. Although their content is low, they should still be indicated in the steel grade. For example, in 20MnVB steel, vanadium is 0.07-0.12%, and boron is 0.001-0.005%.

④ High-grade steel should be marked with an "A" after the steel number to differentiate it from common steel.

⑤ Alloy structural steel for specific uses, with a symbol prefixed (or suffixed) indicating the steel grade's purpose. For instance, the 30CrMnSi steel for rivet screws is designated as ML30CrMnSi.

Alloy tubes and seamless tubes are related yet distinct; they should not be confused.

Alloy pipes are defined by the production material (also known as the material), which is self-explanatory as pipes made of alloys; while seamless pipes are categorized by the production process (seamed or seamless). Unlike seamless pipes, seamed pipes include straight seam welded pipes and spiral pipes.