Forged Rings for Slewing Rings

We can also provide Forged Rings for Slewing Rings . We can supply the material of C45 steel, 50Mn, 42CrMo material. Normally we deliver the forged rings after rough machining and quenching, and the tolerance can be discussed case by case.

Chemical Analysis

Steel

    C

     Si

    Mn

    P

   S

Cr

Mo

   Ni

   Cu

50Mn

0.48~0.56

0.17~0.37

0.70~1.00

≤0.035

≤0.035

≤0.25

—

≤0.30

≤0.20

42CrMo

0.38~0.45

0.17~0.37

0.50~0.80

≤0.035

≤0.035

0.90~1.20

0.15~0.25

—

—

45

0.42~0.50

0.17~0.37

0.50~0.80

≤0.035

≤0.035

≤0.25

   —

≤0.30

≤0.20

* or other materials as required by customers

Mechanical Properties

Steel Grade

Tensile Strength σb

Yield Point σs

Elongation δ5

Shrinkage ψ

Impact Aku2

GB/T 699-1999

≥645MPa

≥390MPa

≥13%

≥40%

≥31J

50Mn

GB/T 699-1999

≥1080MPa

≥930MPa

≥12%

≥45%

≥63J

42CrMo

GB/T 699-1999

≥600MPa

≥355MPa

≥16%

≥40%

≥39J

45

Contrast of Steel Grade

Chinese Standard

DIN Standard

AISI Standard

ISO Standard

GB/T 699-1999

—

AISI1053

SL，SM

50Mn

GB/T 699-1999

42CrMo4

4140

42CrMo4

42CrMo

GB/T 699-1999

C45E

AISI1045

C45E4

45

Heat treatment: Quenching & Tempering, Normalizing
Hardness of forged rings

Steel Grade

Quenching&Tempering

   Normalizing

         Hardness

    Hardness

GB/T 699-1999

HB229~269

HB179~235

50Mn

GB/T 699-1999

HB269~321

*

42CrMo

GB/T 699-1999

HB228~280

HB170~217

45

* As required by customers

We determine the hardness according to the diameter of depression in the forged rings.

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型号尺寸大会 (mm) 尺寸的块 (mm) H H 1 N W B B 1 C L 1 L K 1 K 2 G M × l T H 2 H 3 HGL15CA 24 4.3 9.5 34 26 4 26 39.4 61.4 10 4.85 5.3 M4 × 4 6 3.95 3.7 HGL25CA 36 5.5 12.5 48 35 6.5 35 58 84 15.7 6 12 M6 × 6 ...

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会场 CB / 会场 HB 线性导轨

型号尺寸大会 (mm) 尺寸的块 (mm) H H 1 N W B B 1 C L 1 L K 1 K 2 G M T T1 T2 H 2 H 3 HGW15CB 24 4.3 16 47 38 4.5 30 39.4 61.4 8 4.85 5.3 Ø4.5 6 8.9 6.95 3.95 3.7 HGW20CB 30 4.6 21.5 63 53 5 40 50.5 77.5 10.25 ...

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型号尺寸大会 (mm) 尺寸的块 (mm) H H 1 N W B B 1 C L 1 L K 1 K 2 G M T T1 T2 H 2 H 3 HGW15CC 24 4.3 16 47 38 4.5 30 39.4 61.4 8 4.85 5.3 M5 6 8.9 6.95 3.95 3.7 HGW20CC 30 4.6 21.5 63 53 5 40 50.5 77.5 10.25 6 ...

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Steel	C	Si	Mn	P	S	Cr	Mo	Ni	Cu
50Mn	0.48~0.56	0.17~0.37	0.70~1.00	≤0.035	≤0.035	≤0.25	—	≤0.30	≤0.20
42CrMo	0.38~0.45	0.17~0.37	0.50~0.80	≤0.035	≤0.035	0.90~1.20	0.15~0.25	—	—
45	0.42~0.50	0.17~0.37	0.50~0.80	≤0.035	≤0.035	≤0.25	—	≤0.30	≤0.20
* or other materials as required by customers

Steel Grade	Tensile Strength σb	Yield Point σs	Elongation δ5	Shrinkage ψ	Impact Aku2
GB/T 699-1999	≥645MPa	≥390MPa	≥13%	≥40%	≥31J
50Mn
GB/T 699-1999	≥1080MPa	≥930MPa	≥12%	≥45%	≥63J
42CrMo
GB/T 699-1999	≥600MPa	≥355MPa	≥16%	≥40%	≥39J
45

Chinese Standard	DIN Standard	AISI Standard	ISO Standard
GB/T 699-1999	—	AISI1053	SL，SM
50Mn
GB/T 699-1999	42CrMo4	4140	42CrMo4
42CrMo
GB/T 699-1999	C45E	AISI1045	C45E4
45

Steel Grade	Quenching&Tempering	Normalizing
	Hardness	Hardness
GB/T 699-1999	HB229~269	HB179~235
50Mn
GB/T 699-1999	HB269~321	*
42CrMo
GB/T 699-1999	HB228~280	HB170~217
45
* As required by customers