round bar   Va steel

SIZE : 300-1200MM

Grade:39NiCrMo3

Similar grade:36CrNiMo4,SAE9840

Chemical compostion:

C:0.35/0.43; Si:0.15-0.35; Mn:0.50/0.80;P:Max 0.025;S:Max 0.035

Cr:0.60/1.00;Mo:0.15/0.25;Ni:0.70/1.00;

Standard: EN 10083-3: 2006

Temperature:Hot forging 1100-900

Soft Annealing:HB Max 241

Normalizing:860 Air;

Quenching: 850 oil or polymer; 840 water;

Tempering: 550-650 air;

Stress relieving: 50 under the emperature of tempering

Delivery state: Hot forged +Normalizing/Annealing+Rough Turned+ Quenching+ Tempering,.

Or Only forged of black surface bars.

Size: 300-1200MM

Length: 4.0m and up(Or fix length according the customer requirement).Inspecting: UTS according to SEP 1921 C/c,D/d,E/e,A388 or GB/T 6402

Cut both ends

Payment: L/C at sight or T/T

Min. qty.: 15MT per size.Delivery: By both negotiation.(By bulk shippment or By Container)Delivery time: 60 days after L/C.

Other Steel Grade:

Carbon Steel:C45,CK45, C60,CK15,

Alloy Steel: ST52-3,ASTM A105,42CrMo4,S355J2G3,20NiCrMo2,16MnCr5,20MnCr5,

34CrNiMo6,18CrNiMo7-6,39CrNiMo3, 17CrNiMo6,21CrMoV511,56NiCrMoV7,

 S355J2, 41Cr4,51CrV4,41CrAlMo7,40NiCrMo7,40NiCrMo3;40CrMoV4-6

Manufacturer:Jiangsu Zhuhong Forging Co.,Ltd.

round bar var steel