Standard chrome plated bars - NIMAX CB series

Diameter (range for metric size): 6-200 mm

Diameter (range for imperial sizes): 1/4"-8"

Steel grades:

1. NIMAX CB: C35 E; Ck45
2. NIMAX CBV: 42CrMo4V
3. NIMAX CBM: 20MnV6 (*); 38MnVS6 - * Impact value: on request

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

Roundness: maximum 1/2 IT

Standard lengths: 6000 ±300 mm

Special lengths: on request

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)

Chrome thickness:

• < Ø 20 = min. 15 µm
• ≥ Ø 20 = min. 20 µm

Chrome micro hardness: min. 900 HV0.1

Straightness:

• Ø > Ø 16 mm = max 0.2 mm/m
• Ø ≤ Ø 16 mm = max 0.3 mm/m

Standard chromed bars (NIMAX CB, NIMAX CBM, NIMAX CBV)

From Ø 6 to 200 mm (Imperial range: 3/4" - 8")

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
42CrMo4V	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	Yield point Rp0.2	Elongation A5
	(mm)	- N/mm2 -	- N/mm2 -	- % min -
C35E (natural state)	Ø≤16	Min.550	min 300	18
	16<Ø≤100	Min.520	min 270	19
	100<Ø≤250	Min.500	min 245	19
Ck45 (natural state)	Ø≤16	Min.620	min 340	14
	16<Ø≤100	Min.580	min 305	16
	100<Ø≤250	Min.560	min 275	16
20MnV6 (natural state)	12<Ø≤25	Min.580	min. 450	18
	25<Ø≤80	Min.550	min. 430	18
	80<Ø≤160	Min.530	min. 390	18
38MnVS6	18≤Ø≤115	Min.800	min 520	12
42CrMo4V (in Q+T condition)	Ø≤16	Min.1100	min 900	10
	16<Ø≤40	Min.1000	min 750	11
	40<Ø≤100	Min. 900	min 650	12
	100<Ø≤160	Min. 800	min 550	13
	160<Ø≤250	Min. 750	min 500	14

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 (0.1% max of corroded surface)
<18	72 hours NSS	24 hours AASS
18 to 200	120 hours NSS	40 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

EN 10267	Werkstoff No.	DIN	STAS 500	AFNOR A36101 A35501	B.S. 1449 4360	UNI 7070	JIS G3106	GOST 380 19281	AISI SAE ASTM
19MnVS6	1,5217	20MnV6	-	E420	55M	-	-	-	A572
38MnVS6	1.1303	38MnSiVS5	-	30MV6	-	-	-	-	1045V
EN 10083	Werkstoff No.	DIN 17200	STAS 880	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	AFNOR NFA35552 NFA35551	B.S. 970	UNI 7845 7847 7846	JIS G4051 G4052 G4104	GOST 4543	AISI SAE ASTM
42CrMo4V	1,7225	42CrMo4V	42MoCr11	42CD4 42CrMo4V	708A42 708M40 709M40	42CrMo4V	SCM440(H)	-	4140 4142

Packaging

NIMAX CB bars can be supplied with three packaging options:

• For diameter between 16-200 mm individually cardboard tubes with caracteristic red and white spiral stripes
• For diameter between 16-80 mm bundles with max 1000 kg weight and for diameter ≥ 80 mm bundles with maximum 1500 kg weight
• For Ø < 16 mm plastic spacer rings in wooden boxes with maximum 900 kg weight

Each bundle with weight ≤ 1200 kg being equipped with two thongs (four for more than 1200 kg).

On wooden euro-palets from smallest cut lenghts.

Marking

For each bar the cardboard tube will be marked with black colour: "NIMAX CB / Diameter / Tolerance / Steel grade / Heat no. / Date".

On each bundle (or wooden boxe / palet) they will be applied minim one label for identification.

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