Gold Member Since 2017
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Laiwu Forging Co., Ltd.

Forged Shaft, Forged Part, Machine Part manufacturer / supplier in China, offering Forged Roller Cold Work Roll Back up Roll Work Roll Bur Wr, Hot Die Steel H13, Forged Ring Gear According to User Drawing Meeting ISO9001 and so on.

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Supplier Homepage Product forged roller Forged Roller Cold Work Roll Back up Roll Work Roll Bur Wr

Forged Roller Cold Work Roll Back up Roll Work Roll Bur Wr

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Qingdao, China
Production Capacity: 10000t/Y
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: LD
  • Transport Package: Wooden Cases
  • Origin: Laiwu China
  • Trademark: LD
  • Specification: OD1500X12000mmL
  • HS Code: 722840
Product Description
Forged Roller Cold Work Roll Back up Roll Work Roll Bur WrRoll technology:

1 UT
1.1 UT according to GB/T13314-2008A after rough machining
2 Macrostructure
2.1 take a sample from the neck part of the roll(casing head of the ingot)
2.2 check macrostructure, the sample should not have crack, bubble, white pit...
2.3 transvese macro-structure accordingly to GB1299-2000 class 3, center porosity<=2.0, ingot type macrosegregation<=2.0
2.4 Accordingly to GB/T1979, spot segregation<=2.5, pull<=2.0
3 Microstructure
3.1 take a sample from the neck part of the roll(casing head of the ingot), it should be in the 1/3 radius from surface.
3.2 Non-metallic inclusion according to GB/T10561(method A), A<=1.5, B<=1.5, C<=1.5, D<=1.5, Ds<=1.0, A+B+C+D<=5.0
3.3 Carbide banding<=2.0, carbide liquation<=2.0 according to GB/T18254
3.4 Carbide reticulation<=2.5 according to GB/T1299 class2
3.5 Pearlite spheroidized structure meet class 1-4 according to class 1.
 
4 Test method
Test items sample q'ty, sample position and method

serial

item

Sample q'ty

Sample position

method
1
Chemical composition
1GB/T 20066GB/T 223 , GB/T 4336
2
air
1
End of ingot
GB/T 223,GB/T 20124,GB/T 11261
3
macrostructure
13.7
According3.7
GB/T 226,GB/T 1299,GB/T 1979
4
Non-metallic inclusion
13.8
According 3.8
GB/T 10561
5
Carbide banding,liquation
1GB/T18254
6
Carbide reticulation
1GB/T1299
7
spheroidized structure
1GB/T 1299
8
Hardness
2
2pcs for 1 furance
,Body and neck of rollGB/T 231.1
9
UT

Every piece
 100% bodyGB/T 13314
10
size

Every piece

100% body

measure
11
surface

Every piece
3.5
According 3.5

visualization
 
GRADECSIMNP SCRMONIVCU/NB
70CR3MO0.65-0.750.4-0.70.4-0.70.0152.8-3.50.2-0.60.6--0.25,-
MC3 9CR3MO0.85-0.950.3-0.50.2-0.450.0152.8-3.20.2-0.40.250.15-/-
MC5 9CR5MO0.82-0.90.5-0.80.3-0.50.0154.8-5.10.2-0.30.3-0.40.1-0.2-/-
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Mr. Wu Xiuhe
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