Yingkou Special Steel

R&D


  1. Our company has successfully developed a series of high-strength, high-toughness, and wear-resistant steel products. These are suitable for manufacturing products requiring high hardenability, high strength, high toughness, high wear resistance, high heat resistance, and high resistance to thermal fatigue. The performance indicators and service life of our products meet or exceed international advanced levels. They have been widely used in the manufacturing of machinery and molds, and some products have replaced imports with remarkable results. The high-hardenability, high-strength alloy steel is particularly suitable for producing products that undergo quenching and tempering with surface quenching. The depth of the surface hardened layer can reach 10-30mm, and the surface hardness can reach HRC55 or higher. This is especially suitable for parts requiring a deep hardened layer. Due to its high wear resistance, the service life is significantly improved compared to traditional carburizing processes. The YB and YC series products are suitable for manufacturing hot work dies, with a quenched hardness of HRC37-52, high strength and toughness, and wear resistance. The grade can be selected according to the application.
  2. The comprehensive mechanical performance indicators and service life of the carburized steel products produced by our company according to the agreement standards are more than 50% higher than the national average.
Widely used in the manufacturing of reducer gears, gear shafts, and carburized bearings.
   3. Our company can conduct research and development based on customer requirements for improving product quality, addressing customer problems and difficulties, or replacing imports or reducing costs for customers. Our company can provide solutions, with early investment, fast R&D speed, small batches, short cycles, and high quality.

Grade
(Enterprise Standard)

Longitudinal Mechanical Properties (Measured Values)

Rel
MPa

Rm
MPa

Z
%

A
%

Ak (J)

HRC

u2

v

40G

1000

1150

58

14

98

 

37

B2

1100

1240

58

14

80

 

39

YB3A

1200

1350

55

13

60

 

42

YB3B

1200

1310

52

14

50

 

41

YC3

1110

1240

55

14

70

 

39

YB5A

1430

1580

48

10

 

18

46

1650

1850

45

9

 

16

52

YB5B

1430

1580

50

10

 

16

46

1650

1800

45

9

 

14

50

JL01

1220

1320

60

12

 

90

41

ZJLH

1200

1300

60

12

 

80

41

18Cr2Ni4WA

1030

1330

65

14

160

 

41

G20Cr2Ni4A

-

1450

64

14

130

 

44

18CrNiMo7-6

1100

1400

65

15

 

140

4

18CrNiMo7-6 (Selected Carbon)

850

1150

68

16

 

170

37

Tensile Test

Tensile Specimen

Sprocket Products

Reducer Products

Grain Size

Microstructure

Tensile Fracture

Connecting Link Products

Low Magnification Structure

 
 
 

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