ASTM 42CrMo4 alloy steel round←'↕ bar with heat-treatment services to ™☆improve steel microstructurφαφe and mechanical properties.

Application: machine construction, base pla♥♣‌tes, axes, gear shaftλ←s, gear wheels

Surface condition: black, polished, rough≈α machined, turned, painted, oil or g♠•γ♣rease covered

Chemical composition: C: 0.38 ~0.45; Si:&nbs♣₹p;≤0.40; Mn：0.6<♠0～0.90; S: ≤0.035♥§γ; P: ≤0.035; Cr：‍≤♠0.90～1.20; Mo: 0.15～0.30

Stock sizes:  φ30, φ3↔"'5, φ40, ♣↓<☆φ45, φ50, &✘δphi;60, φ65, φ70,&β♣nbsp;φ90, φ100,&nb↔ ∏sp;φ110, φ130♣¥$, φ120, φ140 mmπ"£•

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 rφש↑adius² x 0.00000785

Round pipe weight KG= 3.14 x lengσγ↑₩th x (OD²-ID² ←Ω) x 0.00000785

Plate weight KG= length x wi★←dth x thickness x 0.0§∑0000785

(All lengths are mm)

We provide heat-treatment₹×, cold thread, lab services according to cu"$≠‌stomer's technical requirements. $♠Please send properties requriements to&π"nbsp;infor@aqjiuxing.net. We will give positiv γe response within one workin" §≠g day.