Chrome-Plated
Tubes

Chrome-plated tubes on the outside, steel grade E355+SR / P460N+N / C45E

cromati_ENG

Description

Externally hard chrome plated steel tubes.

Steel grade: E355, P460N / OD: Ø12 - 200 mm

Induction hardened and externally hard chrome plated steel tubes.

Steel grade: E355, C45E / OD: Ø45 - 125 mm

Hard chrome plated telescopic steel tubes.

Steel grade: E355 / OD: Ø40 - 200 mm, ID: Ø30 - 180 mm

Corresponding steel grade

EN

Werkstoff

DIN

B.S.

UNI

JIS

GOST

AISI / SAE / ASTM

E355

1.0580

St52

CFS5

Fe510

STKM19A

St6sp

1524 / 1024

P460N

1.8905

StE460

55C

FeE460KG

-

18G2AF

-

C45E

1.1191

Ck45

080M46

C45

S45C

45

1045

Chemical composition - in % by weight

Steel grade

C

Si

Mn

P

S

Cr

Mo

Ni

V

Cu

N

E355

max. 0.22

max. 0.55

max. 1.60

max. 0.025

max. 0.040

-

-

-

-

-

-

P460N

max. 0.20

max. 0.60

1.00 ÷ 1.70

max. 0.025

max. 0.020

max. 0.30

max. 0.10

max 0.80

max. 0.20

max. 0.70

max. 0.020

C45E

0.42 ÷ 0.55

max. 0.40

0.50 ÷ 0.80

max. 0.035

max. 0.035

max. 0.40

max. 0.10

-

-

-

-

Mechanical properties

Steel grade

Tensile strength

Rm

N/mm2

Yield point

Rp 0.2

N/mm2

Impact energy

KV

J

Elongation

A5

%

Norm

E355+SR

min. 580

min. 450

(27 J / -20°C) **

min. 10

EN 10305-1

E355+C

min. 640

min. 540

-

min. 4

EN 10305-2

P460N+N

560 - 730

min. 460 *

(27 J / -20°C)

min. 19

EN 10216-3

C45E+N

min. 540

min. 340

-

min. 18

EN 10305-1

E355+SR / P460N+N / C45E

External diameter - OD

Ø12 - 200 mm

Internal diameter - ID

standard dimensions range

External tolerance - OD

ISO f7 / other on request

Roundness - OD

max. 1/2 from diameter tolerance

Standard length

5.000 - 7.200 mm/ others on request

Surface roughness - OD

Ra: max. 0.20 μm

Chrome thickness

OD < 20 mm: min. 15 μm

OD ≥ 20 mm: min. 20 μm

Chrome hardness

min. 900 HV0.1

Straightness

max. 0.25 mm / 1000 mm

Table of dimensions - OD tolerance

Diameter

mm

ISO f7

μm

Diameter

mm

ISO f7

μm

10 < Ø ≤ 18

-16 / -34

80 < Ø ≤ 120

-36 / -71

18 < Ø ≤ 30

-20 / -41

120 < Ø ≤ 180

-43/ -83

30 < Ø ≤ 50

-25 / -50

180 < Ø ≤ 200

-50 / -96

50 < Ø ≤ 80

-30 / -60

On request we can provide chrome plated bars with different levels of corrosion resistance

Diameter

mm

Standard corrosion resistance

High corrosion resistance

Ø < 20

rating 9 after 120 h in NSS

-

Ø ≥ 20

rating 9 after 200 h in NSS

rating 9 after 500 h in NSS

Steel grade and surface hardness

E355+SR

C45E+N

Surface hardness beneath the chrome layer

42±4 HRC

58±3 HRC

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    Chrome-Plated Tubes

    Bricom Srl was founded in 2016 and immediately established itself as a supplier of quality chrome-plated tubes in a highly competitive industry. The company was able to build a solid reputation thanks to the preparation and experience of the founders, who had been working in this field for more than 30 years and were able to rely on a network of leading suppliers, which allowed them to gain the trust of their customers. In recent years, Bricom’s strong growth has impacted all the company’s figures: not only its economic results, but also those related to staff and company assets, which have also been consolidated in terms of technology, up to the doubling of production space in 2022 with the relocation of the headquarters. Today, the Italian and foreign customers that rely on Bricom are particularly concentrated in northern Italy and Europe, where some countries are also reached through local distributors. From the outset, quality and speed have been the characteristics that have made the company’s work stand out in the field of chrome-plated tubes, which has earned the trust of customers and suppliers alike, and which is also enshrined in an efficient quality system that regulates every stage of sales and has enabled the company to obtain UNI EN ISO 9001:2015 certification. This recognition is not only an excellent achievement, but it is considered a starting point for working every day according to high quality procedures. Speed in order fulfilment is another feature that Bricom has made a strong point of: being able to process the order and deliver chrome-plated tubes quickly has always been one of the company’s goals. Major companies from various sectors, primarily hydraulics and pneumatics, rely on Bricom for the supply of chrome-plated tubes, as they are looking for high-profile materials in both standard and custom sizes. In this way, Bricom has become a benchmark for the sale of chrome-plated tubes and can target new and expanding markets.