Shandong, China
Business Type:
Manufacturer/Factory & Trading Company
Main Products:
Number of Employees:
200
Year of Establishment:
2006-05-16
Management System Certification:
ISO9001:2008, ISO14001:2004, OHSAS18001:2007, Certificate of Registration
Average Lead Time:
Peak season lead time: 1-3 months
Off season lead time: one month
OEM/ODM Service

Forged Shaft, Forged Part, Machine Part manufacturer / supplier in China, offering Forged Roller Cold Work Roll Back up Roll Work Roll Bur Wr, Forging Tube Bush, Forged Part Open Die Heavy Forging and so on.

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

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Min. Order: 1 Piece
Port: Qingdao, China
Production Capacity: 10000t/Y
Payment Terms: L/C, T/T
Transport Package: Wooden Cases
Specification: OD1500X12000mmL
Trademark: LD
Origin: Laiwu China

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Basic Info

Model NO.: LD
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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