55simnmo 4145h Mining Rock Hexagonal Hole Steel Steel Hollow Bar

Mining rock hexagonal hole steel bar
55SiMnMo Hex steel for Quarrying Rock Blast Hole Integral Drill Rod
Steel hollow bar with grade 4145H 4140 C45 etc.
1. Quality performance and field of application for products
Hex steel for Quarrying Rock Blast Hole Integral Drill Rod
and rock drill rod is required to have high anti-impact, abrasion resistance capacity; the products are mainly used for steel for charge rock drill head and rock drill rod.
2. Main grade of drill rod :
30CrNi4Mo 40CrMnMo FF-710 K24729 55SiMnMo 35SiMnMoV18-25Cr2Ni4WA 25CrMnSiNi2MoA
3. Processing route:
EAF + LF + VD + concastng steel billets + hot rolled+cold drawn HEX steel bar+Center hole
4. Chemical composition and mechanical properties:
CSIMNP/SCRNiMO55SiMnMo0.53-0.571.13-1.370.63-.870.035
(MAX)0.43-0.4718CrMnNi2MoA0.15-0.200.20-0.350.7-1.000.025
(MAX)1.65-2.000.45-0.650.60-0.8025CrMnSiNi2MoA0.20-0.251.30-1.701.20-1.500.025
(max)0.20-0.401.65-2.000.35-0.45Hex steel bar size:15mm-100mmSteel round bar diameter:20mm-300mm
Avaliable length:200mm-5000mm
Delivery time:7days for read stock,30days for nre
Usage:Quarrying Rock Blast Hole Integral Drill Rod
Keywords:steel hollow bar/alloy steel hollow bar/4145H steel hollow bar/hex steel hollow bar for mining quarry/H19 H22 drill rod/B22 dril rod/drill pipe/:steel hollow bar/alloy steel hollow bar/4145H steel hollow bar/hex steel hollow bar for mining quarry/H19 H22 drill rod/B22 dril rod/drill pipe