Nickel and chrome plated tubes for piston rods with utmost corrosion resistance - NIMAX 1000 NCT

NIMAX 1000 NCT

Products / Nickel & chrome plated bars and tubes with high corrosion resistance /

Nickel plated tube before chrome plated operation Nickel & chrome plated bars and tubes with high corrosion resistance

Diameter (external): 20-140 mm

Inner diameter: according EN 10305-1 (see Specifications) - We can delivery other dimensions follow by special agreements.

Steel grades:

  1. St 52.3 BK+S; NBK (S355 +SR; + N)
  2. STE 460 (S410 +SR; +N)

Tolerance: ISO f7 (ISO h7 or other - on request)

Roundness: maximum 1/2 IT

Standard lengths: up to 6000 mm

Special lengths: on request

The "unchromed length" of each bar (the distance at each end over which the chrome-layer properties and tolerances can not be guaranteed) is at most 0.15 m per end, maximum 0.3 m in total per bar. Fixed or cut lengths can be supplied on request.

Surface roughness: Ra - max. 0,20 µm (normally in the range 0,10-0,15 μm)

Nickel thickness: min 30 µm

Chrome layer thickness: min. 25 µm

Nickel micro hardness: min.300 HV0.1

Chrome micro hardness: min. 950 HV0.1

Straightness: max 0.25 mm/meter

From Ø 20 to 140 mm (Imperial range: 3/4"-5 1/2")

CHEMICAL COMPOSITION, % BY WEIGHT
STEEL GRADE C (max) Si (max) Mn (max) P (max) S Ni (max) V (max)
(%) (%) (%) (%) (%) (%) (%)
St52 (E 355) 0.2 0.5 1.5 0.025 0.02-0.04 - -
StE 460 (E 410) 0.2 0.5 1.7 0.025 max 0.015 0.8 0.2
MECHANICAL PROPERTIES (According to EN 10305-1)
STEEL GRADE (STATE)
Delivery condition
Rm Tensile
strenght
Rp0.2
Yield point
A5
Elongation
- N/mm2 - - N/mm2 - - % min -
Wall thickness ≤ 16 mm Wall thickness ≥ 16 mm
E 355 +SR 600 520 490 14
E 410 +SR 700 620 620 15
E 355 +N 490-630 355 355 22
E 410 +N 560-730 460 450 22
Outside diameter 20 25 28 30 32 35 40 45 50 55 60 63 65 70 75 80 85 90 100 110 120 140
Inside diameter 14 15 16 15 20 25 20 25 30 35 40 43 45 50 55 60 65 70 80 90 100 120
15 18   20   20 25 30 35 40 45 53 50 55 60 65 75 75 85 95    
  20         30 35 40 45 50   55 60 65 70   80 90      

According to ISO 9227:1990 for the AASS and NSS test and ISO 10289:1999 for the evaluation of the results.

Diameter(mm) Min rating 9 (max 0.1% of surface corroded)
20 to 140 1048 hours NSS 370 hours AASS
ISO 9227 ASTM DIN 50021 Salt spray type
NSS B 117 SS Neutral
AASS B 287 ESS Acetic acid
CASS B 368 CASS Copper-accelerated acetic acid
Nimet
EN
10305-1
10305-2
DIN
2391
2393
17179
AFNOR
NF-A49310
NF-A49643
B.S.
6323
UNI
7945
7946
663
6403
JIS
G3445
ASTM
A 513
E355 St52
St52-3
Tu 52b
Ts 47a
CEW5-ERW5 Fe 490
Fe 510 D
Fe 52-2
Fe 510
STKM 19 1024
E410 StE 460 20MV6 - - - -

Packaging

NIMAX 1000 NCT tubes can be supplied with two packaging options:

  • In bundles (each bar is individually packaging in cardboard tubes with caracteristic orange and white spiral stripes) for standard lengths
  • On wooden europalets from smallest cut lenghts

Marking

For each bar the cardboard tube will be marked with black colour: "NIMAX 1000 NCT / ODxID diameter/ Tolerance / Steel grade/ heat no. / date".
Where: OD = outside diameter and ID = inside diameter.

On each bundle (palet) they will be applied minimum one label for identification.