Production Line of Quality Round

main plant building of 
50 ton EAF

electric arc furnace 
with 50 tons

alloy steel production
Special Steel Works, which is a subsidiary of the Group, at the moment is the largest special steel production base of Shandong province. It has the largest ultra high power electric arc furnace-50 ton EAF, four 5-ton EAFs, three sets of rolling mill with the rolling sizes ranged from 12 mm to 130 mm and one cold strip mill. 50 ton EAF of the above is advanced all over the world which features large tonnage, short refining time, high automation, many new technologies and quick change of production.

Adopting of short stress line rolling mill and hyperbolic curve straightener meets the quality requirement from customers about shape sizes and accuracy of the products.

　

quality round

description

Steel grade

specification

standard

Cut to length

delivery

awards

use

Quality level

Carbon structural

steel

Q195, Q215, Q235, Q255, Q275,etc.

12-130mm

GB700-88

  φ12,φ14mm:  6meter;
the others: 4-6 meter

Hot rolled
φ35mm

ISO9002 series Quality Certificate, famous product of “Zhong Hua Zhi Guang”.

For construction and machinery

 

Hot rolled round for bicycle flying wheels

Z2,Z3

Dia.35mm

40mm

Q/OILYS030-91

4-6 meter

Cold headed

 

Mainly for bicycle flying wheel

 

Steel for standard parts

BL2

BL3

Dia.  
12-32mm

GB715-89

4-6 meter

Hot headed, cold headed

ISO9002 series quality certificate

Mainly for standard parts such as screws

 

Hot rolled spring round

60SiMn,65Mn

φ12-80

GB1222-84

 

Hot rolled

 

 

I

Cold-headed hot rolled round

ML15,ML35  ML40Cr

φ12-40

GB6478-86

 

Hot rolled

 

 

I

Hot rolled gear round steel

GCr15 GCr15SiMn

φ12-85

YB9-68or YJZ-84

 

Hot rolled

 

Hot headed

Y

Hot rolled quality structural carbon round

10~70#、15Mn~70Mn

φ12-130

GB699-88

 

Hot rolled

 

For cutting, hot manufacturing and hot headed

I

Hot rolled alloy structural round

20-50Mn2 20MnV 27SiMn 15-50Cr 20MnVB15-42

φ12-130

GB3077-88

 

Hot rolled

 

For cutting, hot manufacturing and hot headed

I

Hot rolled quenched structural round

20CrMnTiH, 30CrMnTiH

φ12-130

GB5216-85

 

Hot rolled

 

Hot headed

I

Steel bars for anchor chain

M20Mn

M30Mn2

φ12-130

YB(T)66-87

 

Hot rolled

Silver brand product for grade II

 

Y

Quality carbon round for pipe

10#,20#,35#,45#

φ50-130

YB/T5222-93

 

Hot rolled

 

 

I