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Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved

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Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved

Brand Name : chunfa

Certification : ISO9001:2008

Place of Origin : China

MOQ : 1 ton

Price : Negotiation

Payment Terms : L/C, T/T

Supply Ability : 400ton per month

Delivery Time : 30days

Packaging Details : Anti rust oil to be applied on material and each rod to be packed in paper sleeve

Chrome Thickness : 20-30 micron

Product : Chrome hollow round bar

Corrosion Resistance : High

Elongation : ≥40%

Hard Chrome Thickness : 20 - 30 micron

Ovality : Half of the tolerance ISO f7

Shape : Round

Standard Length : 1000mm - 8000mm

Straightness : Not more than 0.2 MM/M

Surface Treatment : Hard Chrome Plated

Surface Condition : Hard Chrome Plated

Surface Hardness : 850-1150 HV (vickers 100g)

Surface Treatment : Polished

Tensile Strength : ≥520 MPa

Yield Strength : ≥205 MPa

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Precision ST52 Hollow Round Bar Hard Chrome Plated Rod Tempered With ISO9001:2008

Product Name: Hollow Round Bar Standard Length: 1000mm - 8000mm
Diameter: 6mm - 1000mm Yield Strength: Not Less Than 355 N/MM2
Straightness: Not More Than 0.2 MM/M Surface Hardness: 850-1150 HV (vickers 100g)
High Light:

hollow steel tube

,

hollow steel bar

Precision ST52 Hollow Round Bar Tempered with ISO9001:2008


Detailed Product Description

1. Material: CK45, ST52, 20MnV6, 42CrMo4, 40Cr
2. ISO9001:2008
3. Complete manufactured equipment
4. Condition: Chrome plated, Quenched / Tempered, Induction hardened, Q / T Induction hardened
5. Application: Mining machinery industry, textile / printing industry and so on


Detailed Description
1.CHEMICAL COMPOSITION

Material C% Mn% Si% S% P% V% Cr%
Ck45 0.42-0.50 0.50-0.80 0.04 0.035 0.035
ST52 0.22 1.6 0.55 0.035 0.04
20MnV6 0.16-0.22 1.30-1.70 0.10-0.50 0.035 0.035 0.10-0.20
42CrMo4 0.38-0.45 0.60-0.90 0.15-0.40 0.03 0.03 0.90-1.20
40Cr 0.37-0.45 0.50-0.80 0.17-0.37 0.80-1.10


2.MECHANCIAL PROPERTIES

Material T.S N/MM2 Y.S N/MM2 E%(MIN) CHARPY CONDITION
CK45 610 355 15 >41J NORMALIZE
CK45 800 630 20 >41J Q + T
ST52 500 355 22 NORMALIZE
20MnV6 750 590 12 >40J NORMALIZE
42CrMo4 980 850 14 >47J Q + T
40Cr 1000 800 10 Q + T


3. SUPPLY CONDITION
Ground and chrome plated
4. CHROME THICKNESS
20 to 30 micron
5. SURFACE ROUGHNESS
Ra≤0.2 micron and Rt≤2 micro
6. TOLERANCES ON DIA
ISO f7 on the diameter
7.OVALITY
Half of the tolerance ISO f7
8. STRAIGHTNESS
≤0.2MM/M
9. SURFACE HARDNESS
850-1150HV (vickers 100g)
10.COHESION
No cracks,breaking or detaching after thermic shock(warming up at 300 celsius degrees and cooling
in water)
11 .POROSITY
Test according to ISO 1456/1458 and result yaluation according to ISO 4540 rating 8-10
12 CORROSION RESISTANCE
Test in natural salt spray according to ASTM B 117-72hours
Results evaluation according to ISO 4540 RATING 7-10
13. WELDABILITY
Good
14. PACKING
Anti rust oil to be applied on material and each rod to be packed in paper sleeve
15. CERTIFICATE
All certificate related with material heat treatment and plating is required

We imported one continous chrome plating line from Italy at the beginning of 2016. With this new chrome plating line, we will improve efficiency and product quality a lot.The new chrome plating line is the first one in China and will be the only one in the next five years!


Product Tags:

Precision Hollow Round Bar

      

ST52 Hollow Round Bar

      

Hard Chrome Plated Rod ISO9001

      
Quality Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved for sale

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