ASTM 42CrMo4 alloy st<♦π eel round bar with hσ‍eat-treatment services to improve stee©​l microstructure and mπ™★echanical properties.

Application: machine construction, ™"≈base plates, axes, gear shafts, gea✘∏ ✔r wheels

Surface condition: black, polished, rough machined, turφ✘₽÷ned, painted, oil or grea≠εse covered

Chemical composition: C: 0.38 ~0.45; Si: ÷‍↑±≤0.40; Mn：0.60～0.90; €≥S: ≤0.035; P: •∞≠§≤0.035; Cr：0.90～1.2© 0; Mo: 0.15～0.30

Stock sizes:  φ30, φ3‌<≈$5, φ40, φ45,&φ φ50, φ60,&nb¶♣ →sp;φ65, φ70, φ90£✔™₩, φ100, φ110,α✔ φ130, φ120, &phλ¶i;140 mm

Equivalent grades: 

Mechanical composition: 

Tensile strength: min 1080 MPa

Yield strength : min 930 MPa

Elongation rate: min 12%

Reduction rate: min 45%

Impact energy: akv min 63J

Hardness: 32HRC ~52 HRC

Melting point: 1416 ℃

Formula reference:

Round bar weight KG = 3.14•™"✔ x length x radius&s ≠up2; x 0.00000785

Round pipe weight KG= 3ε£.14 x length x (OD²-ID&s"¥$φup2;) x 0.00000785

Plate weight KG= length x ‌←↕₩width x thickness x 0.00000785

(All lengths are mm)

We provide heat-treatment, cold th≠↔read, lab services according to custom'§er's technical requirements. Please s×"end properties requriements to ≤÷ ‌;infor@aqjiuxing.net. We will give positive responσ× se within one working day.