Hard Chrome Plated Bars

Products

Corrosion resistance and long life under extreme conditions

Modercromo, a manufacturer specializing in the chrome plating of metal bars and tubes, has been operating for over 60 years at the service of major distributors and OEMs in Italy and abroad, ensuring consistent quality and maximum flexibility in product customization.

Chrome plated bars are one of the main products of our production. The chrome plating process, performed in-house with world-unique facilities and rigorous controls, is designed to provide high resistance to corrosion, wear, and aggressive agents, making these bars ideal for use in complex and demanding environmental conditions.

Our chrome plated bars are used in several sectors, including: hydraulic, pneumatic, mechanical and manufacturing industries, energy, telescopic cylinders, special applications and marine and offshore areas, where high performance and long life over time are required.

We produce standard chrome plated bars in a wide range of diameters from 3 to 200 mm and in various steel grades, available in both commercial lengths and with custom cuts according to customer specifications.

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Technical features

Discover the features of our products

DIAMETERS	ISO TOLERANCES	STRAIGHTNESS	ROUGHNESS		OVALIZATION	MICROHARDNESS
DIAMETERS	ISO TOLERANCES	MAX	Ra MAX	Rt MAX	OVALIZATION	MICROHARDNESS
3÷200	f7 h6 h7	0,3mm/m	0,2µm	3,00µm	1/2 Tolerance	> 900 HV_(0,1)

Inch	Diameter (mm)	Weight (Kg/m)
	3.0	0.05
	4.0	0.1
	5.0	0.15
	6.0	0.22
	7.0	0.3
	8.0	0.39
	10.0	0.62
	12.0	0.89
"1/2""	12.7	0.99
	13.0	1.04
	14.0	1.21
	15.0	1.39
"5/8""	15.88	1.55
	16.0	1.58
	18.0	2.0
	20.0	2.47
"1""	22.0	2.98
	24.0	3.55
	25.0	3.85
	25.4	3.98
	28.0	4.63
"1"1/4	30.0	5.55
	31.75	6.21
	32.0	6.31
	35.0	7.55
"1""1/2"	36.0	7.99
	38.0	8.9
	38.1	8.95
	40.0	9.86
"1"3/4"	42.0	10.88
	44.45	12.18

Inch	Diameter (mm)	Weight (Kg/m)
	45.0	12.73
	50.0	15.41
2"	50.8	15.9
	55.0	18.35
	56.0	18.83
	56.15	20.14
2"1/4	60.0	22.19
	63.0	24.47
	63.5	24.86
2"1/2	65.0	26.05
2"1/2	70.0	30.21
3"	75.0	34.66
	76.2	35.78
	80.0	39.46
	85.0	44.54
3"1/2	88.9	48.72
	90.0	49.77
	95.0	55.61
4"	100.0	61.65
	101.6	63.64
	105.0	67.92
	110.0	74.6
	115.0	83.0
	120.0	88.78
	125.0	96.25
	130.0	104.19
	140.0	120.83
	150.0	139.0
	160.0	158.0
	170.0	178.02
	180.0	200.0
	200.0	246.4

Acciaio	Diametro	Rottura	Yield Point	Lungamen.	Resilienza	Durezza	Norma
Acciaio	Ø mm	R_m N/mm²	R_{p 0.2} N/mm²	A₅ %	KV₂ J	Brinell (HB) N/mm²	Norma
C45E	6 < Ø ≤ 10	750-1050	min 565	min 5	-	225-320	EN 10277
	10 < Ø ≤ 16	710-1030	min 500	min 6		210-315
	16 < Ø ≤ 40	650-1000	min 410	min 7		200-298
	18 ≤ Ø ≤ 100	min 580	min 305	min 14		172-242	EN ISO 683-1
	100 < Ø < 200	min 560	min 275	min 14		172-242	EN ISO 683-1
C45E +QT	20 ≤ Ø ≤ 40	650-800	min 430	min 16	-	195-240	EN ISO 683-1
	40 < Ø ≤ 100	630-780	min 370	min 17		190-270
	100 < Ø < 160	I valori di Rm, Rp 0,2 e A5 devono essere concordati				-
20MnV6	6 < Ø ≤ 25	min 700	min 620	min 10	min 27J / -20°C	213-260	Dati tecnici secondo norma interna
	19 < Ø ≤ 80	min 600	min 460	min 18		159-220
	80 < Ø < 200	min 550	min 420	min 18		155-220
42CrMo4 +QT	40 < Ø ≤ 100	900-1100	min 650	min 12	min 35J / 20°C	271-331	EN ISO 683-2
	100 < Ø ≤ 160	800-950	min 550	min 13		240-290
	160 < Ø < 200	750-900	min 500	min 14		225-275
39NiCrMo3 +QT	40 < Ø ≤ 100	900-1100	min 700	min 12	min 35J / 20°C	269-331	EN ISO 683-2
	100 < Ø ≤ 160	850-1000	min 650	min 13		255-302
	160 < Ø ≤ 200	800-950	min 600	min 14		240-285
AISI 303 (1.4305)	Ø ≤ 100	500-750	min 190	min 35	-	-	EN 10088-3
AISI 304 (1.4301)	Ø ≤ 100	500-700	min 190	min 40	-	max 215	EN 10088-3
AISI 316 (1.4401)	Ø ≤ 100	500-700	min 200	min 40	-	max 215	EN 10088-3
AISI 420 +QT (1.4028)	6 ≤ Ø ≤ 80	max 760	-	-	-	max 230	EN 10088-3
AISI 420 +QT (1.4028)	Ø ≤ 100	700 - 850	min 500	min 13	-	-	EN 10088-3

ACCIAIO	C%	Ni%	Cr%	S%	Si%	Mn%	P%	Mo%
C45E	0,42-0,50	0,4	0,4	0,04	0,15-0,40	0,50-0,80	0,035	0,1
42CrMo4 +QT	0,38-0,45	-	0,90-1,20	0,035	0,4	0,60-0,90	0,035	0,15-0,30
20MnV6	0,16-0,22	-	-	0,035	0,10-0,40	1,30-1,70	0,035	max 0.08
39NiCrMo3 +QT	0,36 - 0,44	1.30 - 1.65	1.30 - 1.70	-	0,15-0,40	0,60-0,90	-	-
AISI 303 (1.4305)	max 0.15	8.00 - 10.00	17.00 - 19.00	0.15 - 0.35	1.00	2.00	0.20	0.20 - 0.30
AISI 304 (1.4301)	max 0.07	8.00 - 10.50	17.50 - 19.50	0,03	1.00	2.00	0.045	-
AISI 316 (1.4401)	max 0.07	8.00 - 13.00	16.50 - 18.50	0,03	1.00	2.00	0.045	2.00 - 2.50
AISI 420 +QT (1.4028)	0.16 ÷ 0.25	-	12.00 - 14.00	0,03	1.00	1.50	0.04	-

Available Steel Grades

Discover our steel grades you can use

C45 E/R

20MnV6

42CrMo4/V

39NiCrMo3/V

C45 +QT

AISI 303 / 304 / 316 / 420 B

Possible fields of use

Where our experience GENERATES more value

Thanks to more than sixty years of activity, we have developed solid skills that allow us to offer targeted and reliable solutions to different industrial sectors. Our experience translates into constant quality, continuous innovation and the ability to adapt to the specific needs of each customer. In the most complex and challenging contexts, our services best express their value, ensuring concrete and lasting results.