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{"title":"Precision ST52 Hollow Round Bar Hard Chrome Plated Rod ISO9001 Approved","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/00\/25\/3723629c56011e3f403e4448f3cd-200x200-1\/precision_st52_hollow_round_bar_hard_chrome_plated_rod_iso9001_approved.jpg","attrs":{"Brand Name":"chunfa","Certification":"ISO9001:2008","Place of Origin":"China","Minimum Order Quantity":"1 ton"}}
{"title":"Durable Hollow Round Bar 1000mm - 8000mm HRC 25-30 Chrome Plating","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/82\/24\/9e22e75da653cc835a661f247d20-200x200-1\/durable_hollow_round_bar_1000mm_8000mm_hrc_25_30_chrome_plating.jpg","attrs":{"Brand Name":"chunfa","Place of Origin":"china","Straightness":"Not More Than 0.2 MM\/M","Standard Length":"1000mm - 8000mm"}}
{"title":"Hardness HRC 25- HRC 30 Hollow Round Bar Stainless Steel Hollow Rod Round","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/36\/b5\/ed152d23859cd229c44724d60108-200x200-1\/hardness_hrc_25_hrc_30_hollow_round_bar_stainless_steel_hollow_rod_round.jpg","attrs":{"Brand Name":"chunfa","Place of Origin":"china","Product":"Hollow Round Bar","Straightness":"Not More Than 0.2 MM\/M"}}
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{"title":"Carbon Steel Hollow Round Bar Custom Length Cold Drawn Round Bar","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/c7\/5f\/c045ca52c60c659af7bf8ec49e8c-200x200-1\/carbon_steel_hollow_round_bar_custom_length_cold_drawn_round_bar.jpg","attrs":{"Brand Name":"chunfa","Place of Origin":"china","Product":"Hollow Round Bar","Hardness":"HRC 25-30"}}
{"title":"High Strength Round Hollow Stainless Steel Bar For Construction","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b0\/35\/fa72c82fbd111122f23956db2532-200x200-1\/high_strength_round_hollow_stainless_steel_bar_for_construction.jpg","attrs":{"Brand Name":"chunfa","Place of Origin":"china","Tensile Strength":"Not Less Than 610 N\/MM2","Diameter":"3mm-500mm"}}
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!
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2003
Ecer Certification：
Verified Supplier
Wuxi Chunfa Hydraulic and Pneumatic Machinery Co., Ltd. is a modern enterprise integrating scientific research, production and marketing. It is located on the shore of the beautiful Taihu Lake in Yangshan Town, Wuxi City, which enjoys the reputation of "Hometown of Peach".
Our factory s... Wuxi Chunfa Hydraulic and Pneumatic Machinery Co., Ltd. is a modern enterprise integrating scientific research, production and marketing. It is located on the shore of the beautiful Taihu Lake in Yangshan Town, Wuxi City, which enjoys the reputation of "Hometown of Peach".
Our factory s...
