20CrMnTi(H) hot rolled steel round bars
Classification :
PRODUCT DETAILS
Product introduction
characteristics of hardened steel alloy tool steel, good carburizing heat treatment process and the performance of the steel at ≤960 ℃ fine grain structure, commonly used in long-term heating carburizing temperature, the grain grew no tendency little residual austenite after quenching, therefore, the steel has high strength and wear resistance, excellent cutting performance, the main performance and 20CrMnTi and 20CrNi steel similar. Tensile strength σ ≥1080MPa, yield strength σ ≥885MPa, elongation δ ≥10%, 45% reduction of swelling, impact toughness (impact toughness) α ≥69J / cm, hardness ≤207HB, blank sample size to 15mm.
Technical data
GB 20CrMnTi GB/T 3077 Mechanical
The mechanical properties of GB 20CrMnTi GB/T 3077 metals determine the range of usefulness of a material and establish the service life that can be expected. Mechanical properties are also used to help classify and identify material.
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 912 (≥) | 863 (≥) | 23 | 33 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 212 |
Physical performance parameters of GB 20CrMnTi GB/T 3077 are mainly indicated by density, poisson's ratio, thermal conductivity, specific thermal capacity, coefficient of thermal expansion, modulus of elasticity, electrical resistance value, etc.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and |
Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 24 | - | - | 0.31 | - | |||
| 956 | 121 | - | 12.3 | 423 | - | ||
| 659 | - | 41 | 11.2 | 243 | 423 |
Heat treatment Related
- Annealing of 20CrMnTi Alloy Gearing steel
Slowly heated to 790-810 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. Different annealing ways will get different hardness.The 20CrMnTi Gearing steel will get Hardness MAX 248 HB （Brinell hardness）.
- Quenching and temperature of 20CrMnTi gear steel
Heated slowly to 788°C, Then put in salt-bath furnace keep 1191 ℃to 1204 ℃。quenching by oil get 60 to 66 HRc hardness. High temperature tempering: 650-700℃，cool in air, get hardness 22 to 30HRC. Low temperature tempering: 150-200 ℃， Cool in ari, get 61-66HRC hardness.
- Hot work and cold work of 20CrMnTi Alloy Gearing steel
GB 20CrMnTi steel can hot worked at 205 to 538°C, 20CrMnTi Bearing/Gearing steel can be cold worked using conventional techniques in the annealed or normalized conditions.
Warehouse storage
Our company is a quality benchmark enterprise in Shandong Province, a national contract-abiding and credit-abiding enterprise, and a national, industry and group standard unit for "Colored Steel Plate for Building Decoration". We have many customers all over the world, and our products are exported to Asia, the Middle East, America, Europe, Africa and other countries, enjoying a good reputation at home and abroad. Up to now, we have also established long-term, win-win partnerships with a number of large steel mills.
Packing and delivery
We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services. We can support customers with quality inspections if needed. We can provide competitive prices, good quality control, purchasing suggestions. Welcome to inquire and order!
Customer visit
Up to now, we have also established long-term, win-win partnerships with a number of large steel mills. We are the first-level agent for Chinese state-owned enterprises Shanghai Baosteel and Taigang Iron and Steel Group. Our products can meet every unique requirement of our customers. We provide customized services.
Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.
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2 : Wide excellent experiences with after-sale service.
3 : Every process will be checked by responsible QC which insures every product's quality.
4 : Professional packing teams which keep every packing safely.
5 : Trial order can be done in one week.
6 : Samples can be provided as your requirements
FAQ
Q2:Does the product have quality inspection before loading?
A:Of course, all our products have undergone strict quality inspection before packing.
Q3:Can you provide the samples free?
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
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