Product Name: hollow drilling steel bars
Price: US$
Detail: A type of steel specially used in drill rod manufacture, high intension and toughness.

Material: 95CrMo (same as SANDBAR 20 or C253)
Hexagon and round
Size: hex.22mm, hex.25mm.hex.28mm.hex.32mm.hex, 38mm,
Round.Dia.32mm, 35mm, 38mm, 51mm
Length: any length according to your require.
Package: Wrapped with plastic knitting and then into bundles.

The main size and specifications as below:
Hot Rolled Hexagonal Hollow Drill Steel Bar
Steel Grade: 95CrMo as per Chinese Standard with following chemistry:
C: 0.92-1.03PCT; Si: 0.25-0.45PCT;
Mn: 0.25-0.45PCT; Cr: 0.80-1.20PCT;
Ni: 0.25PCT MAX.; Mo: 0.20-0.30PCT;
S,P: 0.025PCT MAX; Cu: 0.30PCT MAX.

Physical Specification
σb 1320Mpa
δs 9%
Ψ 25.5%
σ-1 350Mpa
Hardness: 36-48HRC.

CONTACT ME: info@kemaico.com
http://www.kemaico.com