X12 Tool Steel
Request X12 Tool Steel
Auremo LLC handles U.S. sourcing inquiries for X12 tool steel. Include the required product form, dimensions, heat-treatment condition, hardness, quantity and applicable specification.
Product forms
- Round and flat stock subject to review
- Tool blanks subject to review
- Forgings subject to review
- Custom cut sizes 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 X12 tool 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
X12 steel
Steel X12: Handbook of steels and alloys. Below is systematized information on the purpose, chemical composition, types of supply, substitutes, critical point temperatures, physical, mechanical, technological and foundry properties for the grade — Steel X12.
General information on steel X12
| Kind of delivery |
| X12 strips, bars, including shaped: GOST 5950−73, GOST 2590−71, GOST 2591−71. Calibrated bar GOST 5950−73, GOST 7417−75, GOST 8559−75, GOST 8560−78. Grinded rod and silversilver GOST 5950−73, GOST 14955−77. Strip GOST 4405−75. Forged and forged blanks GOST 5950−74, GOST 1133−71, GOST 7831−78. |
| Application |
| Cold forgings of high resistance to abrasion, not subjected to strong shock and shocks; drawing boards, eyes for calibration of rod metal for thread rolling, bending and forming dies, complex sections of the body dies, stamping the active part of electric machines, etc. |
Chemical composition of steel X12
| Chemical element | % |
| Vanadium (V), not more | 0.15 |
| Tungsten (W), not more | 0.20 |
| Silicon (Si) | 0.10−0.40 |
| Manganese (Mn) | 0.15−0.45 |
| Copper (Cu), not more | 0.30 |
| Molybdenum (Mo), max. | 0.20 |
| Nickel (Ni), not more than | 0.35 |
| Sulfur (S), not more than | 0.030 |
| Titanium (Ti), not more than | 0.03 |
| Carbon (C) | 2.00−2.20 |
| Phosphorous (P), not more than | 0.03 |
| Chromium (Cr) | 11.50−13.00 |
Process properties of steel X12
| Forging temperature |
| Beginning 1100, end 850. Slow cooling in the wells. |
Steel X12 critical point temperature
| Critical point | °С |
| Ac1 | 810 |
| Ac3 | 835 |
| Ar3 | 770 |
| Ar1 | 755 |
| Mn | 180 |
Impact toughness of steel X12
Impact toughness, KCU, J/cm2
| Delivery condition, heat treatment | KCU | HRCe |
| Isothermal hardening at 1000 C with 40 min at 250−350 C. Tempering at 150 °C with one hour dwell time | 22 | 64 |
| Isothermal hardening at 1000 °C with 40 min at 250−350°C. Tempering at 200 °C with holding for 1 hour | 22 | 63 |
| Isothermal hardening at 1000 °C with an exposure time of 40 min at 250−350°C. Tempering at 250 °C with dwell time of 1 hour | 23 | 61 |
| 1050 °C isothermal hardening with 40 minutes holding time at 250−350°C. Tempering at 150 °C with dwell time of 1 hour | 32 | 62 |
| Isothermal hardening at 1050 °C with an exposure time of 40 min at 250−350°C. Tempering at 200 °C with dwell time of 1 hour | 33 | 60 |
| Isothermal hardening at 1050 °C with an exposure time of 40 min at 250−350°C. Tempering at 250 °C with holding for 1 hour | 34 | 58 |
| Tempering at 960−980°C in oil. Tempering at 200 °C with dwell time 1.5 h | 10 | 64 |
| Quenching at 960−980°C, oil. Tempering at 300 °C with dwell time 1.5 h | 15 | 62 |
| Quenching at 960−980°C, oil. Tempering at 400 °C with dwell time 1.5 h | 34 | 59 |
| Quenching at 960−980°C, oil. Tempering 500 C with holding for 1.5 h | 56 |
Steel hardness X12
| Delivery condition, heat treatment regime | HRCe surface | HB |
| Rings and strips annealed or high-temperatured | 255 | |
| Samples. Hardened at 970 C, oil. Tempering 180 C. | St. 62 | |
| Isothermal annealing at 830−850°C, cooling at 40 deg/h to 720−740°C, holding for 3−4 h, cooling at 50 deg/h to 550 °C, air | 255 | |
| Heating at 650−700 C. Hardening at 950−980°C, oil. Tempering at 180−200 C, 1.5h, air (final heat treatment | 61−63 | |
| Tempering at 650−700°C. Hardening at 950−980°C, oil. Tempering at 320−350°C, 1.5h, air (final heat treatment mode. | 58−59 |
