(1)Grade:GB 20MnB (2)Size:120*120mm (3)Qualitified with certificates (4)Length:6-12m (5)Standard:as per customers' requirements

(1) Grade:  GB 20MnB  hot rolled square steel billet

(3) Chemical composition:  %  (can be customized)

C	Si	Mn	P(max)	S(max)	Al	B
0.17~0.24	0.17~0.37	0.70~1.00	0.025	0.020	0.02~0.05	0.001~0.003

(4) Macroscopic Examination: Grade

Central porosity	Shrinkage	Centerline crack	Halfway crack	Subsurface crack	Skin blowhole
1.0	0	0	0	0	0

(5) Size:100*100mm,120*120mm,125*125mm,150*150mm; 

      Length: 6-12m or according to client's request 

(6) Delivery Condition: Natural cooling

(7) Application: Forging, Mechanical processing

(8) Executive standard: GB/T699-1999, YB/T4149-2006 or follow client's own standard

Blast furnace                                 Converter             

  

Landle furnace                                      Vaccum degasser

   

Continuous casting 

20MnB hot rolled 120*120mm square Billet