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Company Profile

Shanghai JW Steel Co.,Ltd
[China]

Address:
Rm.2101,YuCheng Mansion,North ShanXi Road Shanghai Shanghai 200060 China

Phone:
86-21-62666697

Contact name:
Alan Shu , Export Engineer

Shanghai JW Steel Co.,Ltd

Products

	Chrome Rod/Bar

Click to enlarge image

Origin

China

1.MATERIAL

CK45,

2. CHEMICAL COMPOSITION (%)

C
Mn
Si
S
P

0.40-0.50
0.60-0.90
0.035
0.035
0.035

3. MECHANICAL PROPERTIES

UTS Min
Y.S. Min
E % Min
CHARPY
CONDITION

630 N/mm2
340 N/mm2
16

NORMALISED

600 N/mm2
380 N/mm2
17
41J
HARDENED AND TEMPERED

4.SUPPLY CONDITION

Ground and Chrome plated

5.CHROME THICKNESS

20 TO 40 Micron

6.SURFACE ROUGHNESS

Ra ≤0.2 Micron and Rt≤2 Micron

7. TOLERANCES ON DIA

ISO f7 on the diameter

8.OVALITY

Half of the tolerance ISO f7

9. STRAIGHTNESS

≤0.2mm/m

10.SURFACE HARDNESS

850-1150HV (Vickers 100g)

11.COHESION

No cracks, breaking or detaching after thermic shock (warming up at 300 celsius degrees and cooling in water)

12.POROSITY

Test according to ISO1456/1458 and result valuation according to ISO 4540 rating 8-10

13.CORROSION RESISTANCE

Test in natural salt spray according to ASTM B 117-36 hours

Results evaluation according to ISO 4540 RATING 7-10.

14. WELD ABILITY

Good

15.PACKING

Anti rust oil to be appred on material and each rod to be packed in steel box.

16.Certification

All certificates related with material, heat treatment and plating is required