Hard chrome plated steel bars with good corrosion and wear resistance - NIMAX CBMZ series
Induction hardened and hard chrome plated steel bars with good corrosion and wear resistance - NIMAX ICBMZ series
NIMAX CBZ, NIMAX CBVZ, NIMAX CBMZ, NIMAX ICBZ, NIMAX ICBVZ, NIMAX ICBM
Products / Chromed and nickel & chromed for North America /
- General info
- Specifications
- Corrosion resistance
- Correspondent steel grades
- Marking & packaging
- Download PDF
NIMAX CBMZ series
Diameter (range for metric size): 6-200 mm
Diameter (range for imperial (USA) sizes): 3/4-8"
Steel grades:
- NIMAX CBZ: C35E (AISI 1035); C45E (AISI 1045)
- NIMAX CBVZ: 42CrMo4V (AISI 4142; 4140)
- NIMAX CBMZ: 20MnV6 (A 572); 38MnVS6 (AISI 1045 V)
| Tolerance (USA standard): | |
| Dia (in) | Tolerance (in) |
| 0,75 to 1,499 | +0,000 / -0.001 |
| 1,500 to 2,499 | +0,000 / -0.0015 |
| 2,500 to 2,999 | +0,000 / -0.002 |
| 3,000 to 3,999 | +0,000 / -0.003 |
| 4,000 to 5,999 | +0,000 / -0.004 |
| 6,000 to 8,000 | +0,000 / -0.005 |
| By request we can delivery precision shafts in class "S" or class "L" tolerance (or metric - ISO f7 tolerance). | |
Roundness: maximum ½ IT measured as radial deviation
Standard lengths: 19.68 ± 0.66 ft
Special lengths: by 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 5.9 inches/end, maximum 11.8 inches in total / shaft. Fixed or cut lengths can be supplied on request.
Surface roughness: maxRa(CLA) = 8 µin; max RMS = 14 µin
Chrome thickness: min. 0.0008 in
Chrome micro hardness: min.900 HV0.1
Straightness: max 0.026 in/ft
NIMAX ICBMZ series
Diameter (range for metric size): 6 - 160 mm
Diameter (range for imperial (USA) sizes): 3/4 - 6"
Steel grades:
- NIMAX ICBZ: C35E (AISI 1035); C45E (AISI 1045)
- NIMAX ICBVZ: 42CrMo4V (AISI 4142; 4140)
- NIMAX ICBMZ: 20MnV6 (A572); 38MnVS6 (AISI 1045 V)
| Tolerance (USA standard): | |
| Dia (in) | Tolerance (in) |
| 0,75 to 1,499 | +0,000 / -0.001 |
| 1,500 to 2,499 | +0,000 / -0.0015 |
| 2,500 to 2,999 | +0,000 / -0.002 |
| 3,000 to 3,999 | +0,000 / -0.003 |
| 4,000 to 5,999 | +0,000 / -0.004 |
| 6,000 to 8,000 | +0,000 / -0.005 |
| By request we can delivery precision shafts in class "S" or class "L" tolerance (or metric - ISO f7 tolerance). | |
Roundness: maximum ½ IT measured as radial deviation
Standard lengths: 19.68 ± 0.66 ft
Special lengths: by 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 5.9 inches/end, maximum 11.8 inches in total / shaft. Fixed or cut lengths can be supplied on request.
Hardening depth: between 0.04 and 0.15 in (depending on diameter)
Chrome thickness: min. 0.0008 in
Chrome micro hardness: min.950 HV0.1
Straightness: max 0.026 in/ft
| CHEMICAL COMPOSITION, % BY WEIGHT | |||||||||
| STEEL GRADE | C | Si | Mn | P (max) | S | Cr | Ni (max) | Mo | V |
| (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | |
| C35E | 0.32÷0.39 | max 0.4 | 0.50÷0.80 | 0.035 | 0.02÷0.04 | max 0.4 | 0.4 | max 0.1 | - |
| C45E | 0.42÷0.50 | max 0.4 | 0.50÷0.80 | 0.035 | max 0.035 | max 0.4 | 0.4 | max 0.1 | - |
| 20MnV6 | 0.15÷0.23 | 0.10÷0.50 | 1.30÷1.75 | 0.035 | max 0.035 | - | - | - | 0.1÷0.2 |
| 38MnVS6 | 0.34÷0.41 | 0.15÷0.80 | 1.20÷1.60 | 0.025 | 0.02-0.06 | max 0.3 | - | max 0.08 | 0.08÷0.2 |
| 42CrMo4 | 0.38÷0.45 | max 0.4 | 0.60÷0.90 | 0.035 | max 0.035 | 0.9÷1.2 | - | 0.15÷0.30 | - |
| For Ck45 and C35E: Cr+Mo+N i≤0.63% | |||||||||
| MECHANICAL PROPERTIES | ||||
| STEEL GRADE (STATE) | Range (Ø) | Tensile strenght Rm (minim) |
Yield point Rp0.2 (minim) |
Fracture Elongation A5 (minim) |
| (mm) | - Kpsi - | - Kpsi - | - % - | |
| C35E (natural state) | Ø≤16 | 79.77 | 43.51 | 18 |
| 16<Ø≤100 | 75.42 | 39.16 | 19 | |
| 100<Ø≤250 | 72.52 | 35.53 | 19 | |
| Ck45 (natural state) | Ø≤16 | 89.92 | 49.31 | 14 |
| 16<Ø≤100 | 84.12 | 44.23 | 16 | |
| 100<Ø≤250 | 81.22 | 39.88 | 16 | |
| 20MnV6 (natural state) | 12<Ø≤25 | 84.12 | 65.26 | 18 |
| 25<Ø≤80 | 79.77 | 62.36 | 18 | |
| 80<Ø≤160 | 76.87 | 56.56 | 18 | |
| 38MnVS6 | 18≤Ø≤115 | 116.03 | 75.41 | 12 |
| 42CrMo4 (in Q+T condition) | Ø≤16 | 159.54 | 130.52 | 10 |
| 16<Ø≤40 | 145.04 | 108.77 | 11 | |
| 40<Ø≤100 | 130.54 | 94.26 | 12 | |
| 100<Ø≤160 | 116.03 | 79.76 | 13 | |
| 160<Ø≤250 | 108.78 | 72.51 | 14 | |
| Heat treatment (Only for induction hardened condition) | |
| Ø (inches) | Hardening depth (inches) |
| 0.25 - 0.375 | 0.020 - 0.031 |
| 0.5 - 0.625 | 0.031 - 0.059 |
| 0.75 - 0.875 | 0.047 - 0.059 |
| 1 - 1.125 | 0.055 - 0.071 |
| 1.125 - 1.375 | 0.059 - 0.075 |
| 1.5 - 1.75 | 0.063 - 0.079 |
| 2.00 - 3.00 | 0.087 - 0.102 |
| 3.5 - 4.00 | 0.087 - 0.126 |
| 4.5 - 5.5 | 0.098 - 0.138 |
| 5.5 - 6.0 | 0.110 - 0.157 |
Hardening depth: 0.020 - 0.157 in depending on diameter.
Surface hardness:
- Steel grade C35E: between 52 and 57 HRC
- Steel grade Ck45: between 55 and 60 HRC
- Steel grade 20MnV6: between 42 and 52 HRC
- Steel grade 38MnVS6: between 53 and 57 HRC
- Steel grade 42CrMo4: between 56 and 61 HRC
Special hardening depth: by request
According to ISO 9227:1990-NSS 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) | |
| < 18 | 72 hours NSS | 24 hours NSS |
| 18 to 200 | 120 hours NSS | 40 hours NSS |
| 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 |
| EN 10267 (European Union) |
Werkstoff No. (Germany) |
DIN (Germany) |
STAS 500 (Roumanie) (Old) |
AFNOR A36101 A35501 (France) |
B.S. 1449 4360 (England) |
UNI 7070 (Italy) |
JIS G3106 (Japan) |
GOST 380 19281 (Russia) |
AISI SAE ASTM (USA) |
| 19MnVS6 | 1.1301 (1,5217) | 20MnV6 | - | E420 | 55M | - | - | - | A572 |
| 38MnVS6 | 1.1303 (1.5231) | 38MnSiVS5 | - | 30MV6 | - | - | - | - | 1045V |
| EN 10083 |
Werkstoff No. |
DIN 17200 |
STAS 880 (old) |
AFNOR NFA33101 35551 |
B.S. 970 1449 |
UNI 7845 8373 |
JIS G4051 |
GOST 1050 |
AISI SAE ASTM |
| C45E | 1,1191 | Ck45 | OLC45X | 2C45, XC42H1 XC45, XC48H1 |
080M46 060A47 |
C43 C46 |
S45C S48C |
45 | 1045 |
| C35E | 1,1181 | Ck35 | OLC45X | C35, 2C35 XC32, XC38H1 |
080A35 (080M36) |
C35 | S35C | 35 | 1035 |
| EN 10083 |
Werkstoff No. |
DIN 17200 |
STAS 791 11500 (old) |
AFNOR NFA35552 NFA35551 |
B.S. 970 |
UNI 7845 7847 7846 |
JIS G4051 G4052 G4104 |
GOST 4543 |
AISI SAE ASTM |
| 42CrMo4 | 1,7225 | 42CrMo4 | 42MoCr11 | 42CD4 42CrMo4 |
708A42 708M40 709M40 |
42CrMo4 | SCM440(H) | - | 4140 4142 |
Packaging
NIMAX CBMZ bars can be supplied with two packaging options:
- For diameter between 3/4" - 8" in bundles with individually cardboard tubes with caracteristic red and white spiral stripes for chromed bars respectively cardboard tubes with blue and white stripes for induction hardened and chromed
- For diameter between 3/4" - 3" bundles with max 2204 pounds weight and for diameter ≥ 3" in bundles with maximum 3307 pounds weight
Each bundle with weight ≤ 2645 pounds being equipped with two thongs (four for more than 2645 pounds).
On wooden euro-palets from smallest cut lenghts.
Marking
For each bar the cardboard tube will be marked with black colour: "NIMAX CODE / diameter/ Tolerance / Steel grade/ heat no. / date".
On each bundle (or wooden boxe / palet) they will be applied minim one label for identification.
| Steel grade | NIMAX Code (Chromed) | NIMAX Code (Induction hardened and chromed) |
| C45 E | NIMAX CBZ | NIMAX ICBZ |
| 20MnV6 | NIMAX CBMZ | NIMAX ICBMZ |
| 38MnVS6 | NIMAX CBMZ | NIMAX ICBMZ |
| 42CrMo4V | NIMAX CBVZ | NIMAX ICBVZ |
