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HSS Heat Treatment
Heat Treatment of HSS The heat treatment of high-speed steel usually includes spheroidizing annealing before machining and quenching and tempering after forming. After forging, high-speed steel must undergo spheroidizing annealing (pre-heat treatment). The purpose is not only to reduce the hardne...
AISI 4340 Heat Treatment Furnace
AISI 4140 belongs to ultra-high-strength steel, the implementation standard: ASTM_A29/A29M (forged and cold-worked carbon steel and alloy steel bars). 1. Features and Applications AISI 4140 has high strength and toughness, good hardenability, no obvious temper brittleness, high alloy steel streng...
AISI 4140 Hardening Furnace
AISI 4140 is defined as a low-alloy steel containing 1% Cr-Mo as a strengthening alloying element. Compared with AISI 4130, it has a higher carbon content, a good balance of strength, toughness, wear resistance, impact resistance and heat treatment ability, but it has poor weldability. AISI 4140 ...
1045 Nitriding Furnace
1045 steel is a high-quality carbon structural steel. Its characteristic is that it has higher strength and resistance to deformation than ordinary A3 steel. Its chemical composition element ratio (%): carbon C: 0.42～0.50; chromium Cr: ≤0.25; manganese Mn: 0.50～0.80; nickel Ni: ≤0.25; phosphoru...
High Speed Steel Oil Quenching
1. Typical High-speed Steel At present, there are about dozens of types of high-speed steel at home and abroad. High-speed steel can generally be divided into two categories,-type is general-purpose high-speed steel, and can be further divided into tungsten, molybdenum and tungsten-molybdenum ser...
Iron-based Powder Metallurgy Industry Development
Combined with the current status and downstream development prospects of iron-based powder metallurgy technology in my country and abroad, the future development direction of iron-based powder metallurgy mainly includes four categories: Further improve the characteristics of high consistency, hig...
Metal Powder Sintering Technology
Powder sintering is a process of reducing the free energy of the system, which is manifested by the flattening of the sintering neck and the surface of the particles, the reduction of the total surface area and surface energy of the system, the reduction of the total void volume and the total sur...
Vacuum Heat Treatment of High-strength Steel and Ultra-high-strength Steel
We usually call steel grades with tensile strength Rr1100~1400MPa as high-strength steels, and steel grades with tensile strength Rm>1400MPa, yield strength RaL>1200MPa and appropriate plasticity and toughness are called ultra-high-strength steels. The vacuum quenching heating temperature o...
Vacuum Heat Treatment of Titanium alloy
Table 1 lists the process parameters of vacuum quenching (solid solution) and aging treatment of titanium alloys for reference. Alloy grade Vacuum/Pa Solution temperature/℃ Time/H Aging temperature/℃ Time/H TC3 10-2~ 10– 3 820~ 920 0.5~2 450~550 2~12 TC4 850~ 950 450~ 550 TC6 860~ 900 50...
Vacuum Heat Treatment of Superalloy
The vacuum heat treatment process of superalloy is shown in Table 1 Alloy grade Solution temperature/°C Solution time/h Cool down Vacuum /Pa Aging temperature/°C Aging time/h Cool down Vacuum/Pa GH37 Once 1180士1 Twice 1050土 10 2 4 Air-cooled 0.1~1 800土10 16 Air-cooled 10—1~10—2 G...