hollow steel tube round hollow bar from China manufacturer

Place of Origin:

Zhejiang, China (Mainland)


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Product Detail

Customized CK45 Chrome Plated Hollow Round Bar 6 - 1000mm Diameter <span style="fon

Customized CK45 Chrome Plated Hollow Round Bar 6 - 1000mm Diameter

chrome plated hollow bar

Detailed Product Description
1.Material:CK45
2.Ground and chrome plated
3.Diameter:6~1000mm
4.length:1000~8000mm
5.ISO9001:2008

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 he