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Seamless Steel Tubes for Hydraulic Prop (GB/T 17396 30MnNbR

Product Categary:

Cold Drawn Seamless Tubes (Mec

Main Feature:

Jiangsu Haohua Industry Group as one of the leading suppliers in China to supply Seamless Steel Tubes for Hydraulic Prop for petroleum industry and Heat Exchanger industry and Machining Industry etc.

product description

Seamless Steel Tubes for Hydraulic Prop (GB/T 17396 30MnNbRe)

Commdity name: Seamless Steel Tubes for Hydraulic Prop
Standard: 
China National Standard
Uses: 
For manufacturing cylinder and piston of hydraulic props for coal mine or other purposes
Size: As agreement
Package type: In bundle with Plastic protective film
Chemical Composition and Mechanical Properties pls check our excell as below,

Standard Grade C SI MN P S CR NI CU
GB/T 17396 30MnNbRe 0.27-0.36 0.50~0.80 1.10~1.40 ≤0.035 ≤0.035 ≤0.030 ≤0.030 ≤0.030
Mechanical Properties  
Grade Test piece with heat treatment Yield strength Tensile strength Elongation Impact energy HBW  
/not less than
30MnNbRe 880 centigrade±20 centigrade/Water quench 850 725 13 49 -
450 centigrade±50 centigrade/Temper
/Cooling: air