Products

Tube Welding Line

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Rolls

We can supply the rolls (together with the spacers, clamps, and sample plate) for the tube mills or for roll forming machines for the customers if get the drawings of the rolls. With our abundant experience and mature technology, we can also make the drawing according to some parameter information of the machine.


Machining Process
(1)Raw material preparation – forge piece ; inconel

 


(2) Semi-finishing; Numerical control cutting machining

 


(3) Numerical control finishing machining

 


(4) Product inspection – dimensions, form and position tolerance

 


(5) Product inspection – hardness

 


(6) Customer inspection

 


(7) Finished-parts storage – shipshape

 


(8) Packing

 

 

Roll Material

 

Designation

Chemical Composition (%)

China

USA

Japan

C

Si

Mn

Cr

Mo

V

P

S

Cr12Mo1V1

D2

SKD11

1.45~1.70

≤0.40

≤0.40

11.00~12.50

0.40~0.60

0.15~0.30

≤0.030

≤0.030

Cr12

D3

SKD1

2.00~2.30

≤0.40

≤0.40

11.00~13.00

-

-

≤0.030

≤0.030

GCr15

S2100

SUJ2

0.95~1.05

0.15~0.35

0.25~0.45

1.40~1.65

-

-

≤0.025

≤0.025

 

 

 

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