China China OEM Purity Polished Tungsten Rods Manufacturer and Supplier

China OEM Purity Polished Tungsten Rods

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Dedicated to strict high-quality management and considerate shopper company, our experienced team associates are normally available to discuss your requirements and ensure full shopper gratification for China OEM Purity Polished Tungsten Rods, Welcome to go to our firm and manufacturing facility. You should truly feel no cost to get in touch with us if you need any further assistance.
Dedicated to strict high-quality management and considerate shopper company, our experienced team associates are normally available to discuss your requirements and ensure full shopper gratification for Polished Tungsten Rods, Purity Tungsten Rods, Tungsten Bars, The best and original quality for spare parts is a most important factor for transportation. We may stick on supplying original and good quality parts even a little profit earned. God will bless us to do kindness business forever.
Chemical composition:

Main and minor components	Min.content(%)	ASTM B760
W	99.95	balance
Impurities	Max.values (μg/g)	Max.values (μg/g)
Al	15	-
Cu	10	-
Cr	20	-
Fe	30	100
K	10	-
Ni	20	100
Si	20	100
Mo	100	-
C	30	100
H	5	-
N	5	100
O	20	100
Cd	5	-
Hg	1	-
Pb	5	-

Diameter and tolerances:

Diameter (mm)	Tolerance
	Straightened	Forged	Turned	Ground
0.50-0.99	-	-		±0.007
1.00-1.99	-	-		±0.010
2.00-2.99	±2.0 %	-		±0.015
3.00-15.9	-	-		±0.020
16.0-24.9	-	±0.30		±0.030
25.0-34.9	-	±0.40		±0.050
35.0-39.9	-	±0.40	±0.30	±0.060
40.0-49.9	-	±0.40	±0.30	±0.20
50.0-90.0	-	±1.00	±0.40	-

Length and straightness:

Diameter (mm)	Production length (mm)	Stiraightness/Meter (mm)
Diameter (mm)	Production length (mm)	Cleaned	Ground/turned
0.50-10.0	≥500	＜2.5	＜2.5
10.1-50.0	≥300	＜2.0	＜1.5
50.1-90.0	≥100	＜2.0	＜1.5

Length tolerance:

Diameter 0.50-30.0 mm
Nominal length (mm)	≥15	15-120	120-400	400-1000	1000-2000	＞2000
Length tolerance(mm)	±0.2	±0.3	±0.5	±2.0	±3.0	±4.0
Diameter ＞30.0 mm
Nominal length (mm)	≥30	30-120	120-400	400-1000	1000-2000	＞2000
Length tolerance(mm)	±0.5	±0.8	±1.2	±4.0	±6.0	±8.0

Density: ≥19.1g/cm³
Nondestructive testing: For diameters＞15.00 mm:100% ultrasonic testing. For diameters of 0.50-50.0mm:Eddy curent tests on rods with ground surface.

Diameter(mm)	Hardness (HV 10)
0.50-2.99	—
3.00-9.99	420-500
10.0-29.9	420-480
30.0-49.9	380-460
≥50	＞350

Surface condition:

Diameter (mm)	Surface condition
0.50-90.0	Chemical cleaned
≥40.0	Turned Ra ≤3.2μm
0.50-30	Centerless ground Ra≤1.0μm
≥40.0	- Centerless ground Ra≤1.2μm