Annealing process for martensitic stainless steel 1Cr13 steel wire rod
A martensitic stainless steel, annealing process technology, applied in the direction of manufacturing tools, furnace types, furnaces, etc., can solve the problems of substandard performance of annealed materials and high tensile strength of wire rod annealing, to reduce substandard performance and meet the subsequent drawing. Production, the effect of reducing energy consumption
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Embodiment 1
[0017] Embodiment 1: The annealing process of the martensitic stainless steel 1Cr13 wire rod is specifically as follows.
[0018] The mass percentage of the chemical composition of 1Cr13 wire rod in this embodiment is: C 0.11%, Si 0.32%, Mn 0.24%, Cr 12.42%, P 0.019%, S 0.005%, Ni 0.08%, and the balance is Fe and unavoidable of impurities.
[0019] The annealing process is as follows: heating up to 845°C and holding it for 4 hours; then rapidly cooling to 700°C at a rate of 50°C / h and holding it for 2 hours; then cooling slowly to 650°C at a rate of 15°C / h; The speed of h is rapidly cooled to 600 °C and released. The mechanical properties of the 1Cr13 wire rod after annealing were tested, and the test results are shown in Table 1.
[0020] Table 1: Mechanical properties of 1Cr13 wire rod after annealing (MPa)
[0021] sample 1# 2# 3# 4# 5# 6# 7# 8# tensile strength 480 505 500 489 496 511 500 525
Embodiment 2
[0022] Embodiment 2: The annealing process of the martensitic stainless steel 1Cr13 wire rod is specifically as follows.
[0023] The mass percentage of the chemical composition of 1Cr13 wire rod in this embodiment is: C 0.12%, Si 0.35%, Mn 0.34%, Cr 12.38%, P 0.018%, S 0.002%, Ni 0.06%, and the balance is Fe and unavoidable of impurities.
[0024] The annealing process is as follows: heating up to 835°C and holding for 4 hours; then rapidly cooling to 705°C at a rate of 55°C / h and holding for 1.75 hours; then cooling slowly to 650°C at a rate of 20°C / h; The speed of h is rapidly cooled to 605 ℃ and released from the furnace. The mechanical properties of the 1Cr13 wire rod after annealing were tested, and the test results are shown in Table 2.
[0025] Table 2: Mechanical properties of 1Cr13 wire rod after annealing (MPa)
[0026] sample 1# 2# 3# 4# 5# 6# 7# 8# tensile strength 490 500 508 525 515 485 492 498
Embodiment 3
[0027] Embodiment 3: The annealing process of the martensitic stainless steel 1Cr13 wire rod is specifically as follows.
[0028] The mass percentages of the chemical components of 1Cr13 wire rod in this embodiment are: C 0.10%, Si 0.33%, Mn 0.30%, Cr 12.45%, P 0.020%, S 0.004%, Ni 0.07%, and the balance is Fe and unavoidable of impurities.
[0029] The annealing process is as follows: heat up to 840°C, hold for 4.25 hours; then rapidly cool to 695°C at a rate of 60°C / h, and hold for 2 hours; then slowly cool to 655°C at a rate of 18°C / h; The speed of h is rapidly cooled to 595 ℃ and released from the furnace. The mechanical properties of the 1Cr13 wire rod after annealing were tested, and the test results are shown in Table 3.
[0030] Table 3: Mechanical properties of 1Cr13 wire rod after annealing (MPa)
[0031] sample 1# 2# 3# 4# 5# 6# 7# 8# tensile strength 520 487 518 493 493 515 485 503
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