3Cr17NiMo (Germany 1.2316)
The chemical composition shown in Table 1
Table 1:3 Cr17NiMo chemical composition (Wt%)
Chemical composition:
● Chemical Composition:
Carbon C :0.30-0 .40
Si Si: ≤ 1.00
Manganese Mn: ≤ 1.00
Sulfur S: promised to the residual content of ≤ 0.020
Phosphorus P: allow the residual content ≤ 0.035
Chromium Cr: 16 ~ 17.50
Ni Ni :0.6-1 .0
Mo Mo: 0.80 ~ 1.30
Heat treatment of steel:
(1) soft annealed - 780-820 ℃, furnace cooling, the hardness HB ≤ 230.
(2) quenching - 1020-1050 ℃, oil cooling or quenching liquid, hardness HRC ≥ 45.
(3) tempering - Temperature (℃): 100 200 300 400 500 600
Hardness (HRC): 49 47 46 46 47 32
Mechanical properties of steel:
Heat Treatment: 1030 ℃ oil quenching,780-800 ℃ tempering.
Rr 0.2 (Mpa) Rm (Mpa) A (%) Z (%) HRC
≥ 550 ≥ 750 ≥ 24 ≥ 50 26-30
Performance of steel;
(1) high purity, excellent mirror-polished.
(2) and strong corrosion resistance, corrosion resistance than S-136 and 1.2316
(3) to facilitate heat treatment, quenching of Yu Ying, the size and stability.
(4) wear can also be S-136 and 1.2316 comparable, they pass welding.
At present, Benxi Iron and abundant supply of domestic and foreign products have been No. mold factory. Varieties of plates, rods, die blanks.