55Kh / 55Cr Steel
Request 55Kh / 55Cr Steel
Auremo LLC supports U.S. sourcing inquiries for 55Kh / 55Cr steel used for rolls, shafts, gears and other wear-resistant parts. Send the required product form, dimensions, condition, quantity and applicable specification.
Product forms
- Bar and shaft stock subject to review
- Forgings and blanks subject to review
- Roll stock subject to review
- Custom dimensions subject to review
Information to include in your request
Please provide the material grade or specification, product form, dimensions and tolerances, quantity, delivery ZIP code and required documentation. Pricing, availability and lead time are confirmed for each quotation.
Frequently asked questions
How is the price for 55Kh / 55Cr steel products confirmed?
The quotation is based on the exact grade, dimensions, tolerances, quantity, documentation and delivery requirements supplied with the inquiry.
Can non-standard dimensions be requested?
Yes. Send a drawing or dimensional requirements with the inquiry. Manufacturing or sourcing feasibility is confirmed during quotation.
What information is available for delivery in the United States?
Provide the destination ZIP code. Available freight options, lead time and delivery terms will be included in the commercial response.
Related products
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 55Х |
| Designation GOST Latin | 55X |
| Transliteration | 55H |
| The chemical elements | 55Cr |
Description
55KH steel is used: for the manufacture of a compound of the axes of the backup rolls for cold rolling of metals; work rolls Blumenhof, rollable, billet, rail and structural steel, heavy section, medium section and light section mills and work rolls of sheet mills for hot rolling of metals; gear shafts, gears and other stressed parts exposed to abrasion, but working without significant impact.
Standards
| Name | Code | Standards |
|---|---|---|
| Metal forming. Forgings | В03 | GOST 8479-70, TU 108-11-905-87 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni |
|---|---|---|---|---|---|---|---|
| 0.5-0.6 | ≤0.04 | ≤0.04 | 0.35-0.65 | 1-1.3 | 0.17-0.37 | ≤0.5 |
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa |
|---|---|---|---|---|---|---|
| Quenching in oil from 820-840 °C + Vacation at 560-630 °C, cooling in furnace or in air | ||||||
| ≤100 | ≥640 | ≥840 | ≥12 | ≥40 | - | 255-322 |
| Superheat temperature of 1220 °C, exposure 15 min moving Speed of the grips of the testing machine 150 mm/min. | ||||||
| - | - | ≥190 | ≥52 | ≥65 | - | - |
| Quenching in oil from 820-840 °C + Vacation at 560-630 °C, cooling in furnace or in air | ||||||
| 101-300 | ≥540 | ≥780 | ≥10 | ≥35 | - | 240-302 |
| Superheat temperature of 1220 °C, exposure 15 min moving Speed of the grips of the testing machine 150 mm/min. | ||||||
| - | - | ≥115 | ≥56 | ≥80 | - | - |
| Quenching in oil from 820-840 °C + Vacation at 560-630 °C, cooling in furnace or in air | ||||||
| 301-500 | ≥490 | ≥730 | ≥8 | ≥30 | - | 240-300 |
| Superheat temperature of 1220 °C, exposure 15 min moving Speed of the grips of the testing machine 150 mm/min. | ||||||
| - | - | ≥78 | ≥83 | ≥99 | - | - |
| Normalization at 840-860 °C, air cooling + Vacation at 580-630 °C, air cooling or pecii | ||||||
| 301-500 | ≥340 | ≥640 | ≥8 | ≥30 | - | 210-240 |
| Superheat temperature of 1220 °C, exposure 15 min moving Speed of the grips of the testing machine 150 mm/min. | ||||||
| - | - | ≥54 | ≥89 | ≥100 | - | - |
| The forging temperature of 1210 °C, exposure time 10 h of Isothermal annealing. Normalization. High vacation. | ||||||
| 480 | ≥380 | ≥780 | ≥13 | ≥22 | ≥210 | - |
| Superheat temperature of 1220 °C, exposure 15 min moving Speed of the grips of the testing machine 150 mm/min. | ||||||
| - | - | ≥40 | ≥99 | ≥100 | - | - |
| The forging temperature of 1210 °C, exposure time 10 h of Isothermal annealing. Normalization. High vacation. | ||||||
| 670 | ≥360 | ≥760 | ≥10 | ≥17 | ≥200 | - |
| Superheat temperature of 1220 °C, exposure 15 min moving Speed of the grips of the testing machine 150 mm/min. | ||||||
| - | - | ≥27 | - | ≥100 | - | - |
| The forging temperature of 1210 °C, exposure time 10 h of Isothermal annealing. Normalization. High vacation. | ||||||
| 960 | ≥340 | ≥750 | ≥9 | ≥15 | ≥180 | - |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
Technological properties
| Name | The value |
|---|---|
| Weldability | Steel difficult weldability. Welding methods: SMAW, essential heating and subsequent heat treatment. The CCC, the necessary subsequent heat treatment. |
| Propensity to temper brittleness | Inclined. |
| Forging temperature | Beginning - 1220 °C, the end - of 800 °C. the cross Sections up to 200 mm are cooled in air, 200-350 mm in the pit. |
| Flock-sensitive sensitivity | Sensitive. |
