AISI/SAE 8720（UNS G87200）steel is a type of low carbon and low alloy structural steel containing chromium, nickel and molybdenum. It provided good carburizing, hardenability, mechanical properties and machining properties appropriate for the annealed condition.
Standards: ASTM A29
Size: 6mm-350mm
Type: Round bar
Delivery conditions: Annealed, Cold Finished, Normalized
The Equivalent Standards:
EN/DIN | UNS | JIS | GB |
20NiCrMo2-2 | G87200 | SNCM220 | 20CrNiMo |
Chemical composition
C | Si | Mn | Cr | Ni | Mo | S | P |
0.18-0.23 | 0.15-0.35 | 0.7-0.9 | 0.4-0.6 | 0.40-0.7 | 0.2-0.3 | ≤0.04 | ≤0.035 |
The Mechanical Properties
Tensile Strength | Yield Strength 0.2% (MPa) | Elongation -% in 50 mm (min.) | Hardness, HB |
≥500 MPa | ≥330 MPa | 25 % | 150 |
Applications
This alloy is for primary forming into wrought products of medium-strength parts such as forged camshafts, fasteners and gears.
World iron&steel is a professional supplier of alloy steel rods and bars. We manufacture and distribute high quality 8720 steel round bar for gear application in accordance with standards ASTM A29, specified delivery conditions and final customer specifications for industrial and commercial applications. Special sizes of steel bars and delivery issues can be further negotiated and we provide a wide range of solutions for purchasing departments to select alternative grades, contact us today!