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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 |
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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 |
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 |
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We determine the hardness according to the diameter of depression in the forged rings.
溶胶 C 尺寸 模型 号 A 我 L G H M D1 * D2standard 孔径 公差 ( H8 ) 重量 g min 最大 溶胶-16 C 16 13 29 3 5 M2.5 5 6.35 12 溶胶-20 C 20 14 33 3 6.5 M3 6 8 19 溶胶-25 C 25 17 39 3.8 9 M3 6 10 36 溶胶-32 C 32 19 45 4.5 11 M4 8 12...
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溶胶 尺寸 模型 号 A 我 L G M D1 * D2standard 孔径 公差 ( H8 ) 重量 g min 最大 溶胶-16 16 7 18 3.5 M3 4 6.35 7 溶胶-20 20 9 23 4.5 M4 5 8 14 溶胶 25 25 11 18 5.5 M5 5 10 27 溶胶-32 32 13 33 6.5 M6 8 12 50 溶胶 40 40 14 35 7 M6 ...
自由运动球螺杆和螺母滚珠丝杠之间转让力和运动。这种转移明智取代传统的直接函数明智螺杆和螺母之间。因此最低滚动摩擦代替滑动摩擦的传统滚珠丝杠。滚珠丝杠副的传输效率将达到 90%以上。传质单元的驱动力矩将减少到 1/3 的滑动螺钉。这很大程度上降低了热率。...
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自由运动球螺杆和螺母滚珠丝杠之间转让力和运动。这种转移明智取代传统的直接函数明智螺杆和螺母之间。因此最低滚动摩擦代替滑动摩擦的传统滚珠丝杠。滚珠丝杠副的传输效率将达到 90%以上。传质单元的驱动力矩将减少到 1/3 的滑动螺钉。这很大程度上降低了热率。...
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