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SPECIALIST HYDRAULIC STEEL SUPPLY

CHROME BAR

Formark stocks a range of quality Hard Chrome Bar from world leading mills. Our range includes both Standard 1045-grade hard chrome bar and Induction Hardened high-tensile grade chrome bar for a range of hydraulic cylinder repairs. View the full stocked diameters below; available in both metric and imperial bar diameters.

Chrome Bar Stock List

metric
DIAMETER METRIC
KGS/MTR
1045
38MNVS6 IH
12
0.888
✔️

16
1.578
✔️

20
2.466
✔️

25
3.853
✔️
✔️
28
4.83
✔️

30
5.549
✔️
✔️
32
6.613
✔️
✔️
35
7.552
✔️
✔️
36
7.990
✔️
✔️
40
9.864
✔️
✔️
45
12.484
✔️
✔️
50
15.413
✔️
✔️
55
18.649
✔️
✔️
60
22.194
✔️
✔️
63
24.469
✔️

65
26.047
✔️
✔️
70
30.209
✔️
✔️
75
34.678
✔️
✔️
80
39.456
✔️
✔️
85
44.542
✔️
✔️
90
49.937

✔️
95
54.86
✔️
✔️
100
61.650
✔️
✔️
105
67.969

✔️
110
74.597

✔️
115
81.532

✔️
120
88.776

✔️
130
104.189

✔️
150
138.713

✔️
160
157.824

✔️
IMPERIAL
DIAMETER
KGS/MTR
1045
38MNVS6 IH
1/2"
0.994
✔️

5/8"
1.492
✔️

3/4"
2.237
✔️

7/8"
3.045
✔️

1"
3.977
✔️
✔️
1-1/8"
5.034
✔️

1-1/4"
6.215
✔️
✔️
1-3/8"
(34.925)
✔️

1-1/2"
8.949
✔️

1-5/8"
10.503
✔️

1-3/4"
12.181
✔️
✔️
2"
15.910
✔️
✔️
2-1/4"
20.136
✔️

2-1/2"
24.859
✔️
✔️
2-3/4"
30.079
✔️
✔️
3"
35.797

✔️
3-1/2"
48.723

✔️
4"
63.639
✔️
✔️
4-1/2"
80.543
✔️

7"
194.893
✔️
✔️

CHROME BAR - TECHNICAL SPECIFICATIONS

SPECIFICATIONS
  • 20-micron miniumum chrome layer depth.
  • 1-3mm induction hardened depth, to 55-60 HRC Hardness (38MnVS6)
  • Corrosion level 10 at 120 hours, Level 9 at 312 hours using ISO 9227 evaluated at ISO 10289 NSS.
  • OD tolerance is f7.
  • Surface roughness is Ra 0.07 – 0.2µm,
  • Straightness 0.2mm per metre max.
  • 600-800 (1045) – 850-1000 (38MnVS6) (N/mm² or MPa) Tensile.
  • Surface Hardness is HV900 or 66 HRC non IH.
  • Surface Hardness is HV750 or 60 HRC IH.
BENEFITS
  • Excellent machinability.
  • Excellent weldability.
  • High tensile premium material (38MnVS6).
  • Ideal for earthmoving or forestry application in IH (38MnVS6).
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OUR RANGES

LEARN ABOUT OUR HONED HYDRAULIC CYLINDER RANGE!

View our wide range of hydraulic cylinder tube. Manufactured by reputable European steel mills, our cylinder tube has excellent concentricity and straightness. Stocked in New Zealand, Formark hydraulic tube is available in metric and imperial sizes. Your order will be dispatched the same-day, and can be ordered cut to length.
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