30CrNi2MnMoRE special steel

The code name of 30CrNi2MnMoRE special steel is 617 steel plate, which implements the GJB 31A-2000 standard. 30CrNi3MoV code 675 steel.

GJB31A-2000 replaces GJB 31-85, the products are all thick plates, generally between 40 mm and 80 mm.

Process: electric arc furnace + out-of-furnace refining + electroslag to ensure product quality.

In the GJB1496-2000A standard, the chemical elements related to the specifications of 28Cr2Mo, 26SiMnMo and 22SiMn2TiB steel plates are analyzed in detail.

30CrNi2MnMoRE Steel chemical composition:
C: 0.26～0.32
Si: 0.20～0.50
Mn: 0.80～1.30
S:≤0.025
P:≤0.020
Cr: 0.80～1.30
Ni: 1.40～1.70
Mo: 0.30～0.50
RE: 0.07～0.12

30CrNi2MnMoRE smelting method: using converter plus external refining or electric arc furnace smelting.
30CrNi2MnMoRE delivery state: the steel plate is delivered in a high temperature tempered state.

---