Stainless Steel Valve Balls 316/316L

Overview

• Excellent Corrosion Resistance
• Good Elevated Temperature Strength
• Good Pitting Resistance

316 Stainless Steel is widely used in applications requiring corrosion resistance superior to Type 304, or good elevated temperature strength. Type 316L immunity to carbide precipitation due to welding assures optimum corrosion resistance.
Type 316L is an extra-low carbon version of Type 316 that eliminates harmful carbide precipitation due to welding.

Composition

Type 316 %

Type 316L %

Carbon

0.08 max.

0.03 max.

Manganese

2.00 max.

2.00 max.

Phosphorus

0.045 max.

0.045 max.

Sulfur

0.030 max.

0.03 max.

Silicon

0.75 max.

0.75 max.

Chromium

16.00 – 18.00

16.00 – 18.00

Nickel

10.00 – 14.00

10.00 – 14.00

Molybdenum

2.00 – 3.00

2.00 – 3.00

Nitrogen

0.10 max.

0.10 max.

Iron

Balance

Balance


Typical Room Temperature Properties

 

UTS
ksi (MPa)

0.2% YS
ksi (MPa)

Elongation
% in 2″
(50.8 mm)

Hardness
Rockwell

Type 316

84.0 (579)

42.0 (290)

50

B79

Type 316L

81.0 (558)

42.0 (290)

50

B79

Elevated Temperature Properties

Temperature

°F (°C)

UTS

ksi (MPa)

0.2% YS

ksi (MPa)

Elongation

% in 2″

(50.8 mm)

400 (204)

81.0 (558)

35.0 (241)

51

600 (316)

78.0 (538)

31.0 (214)

48

800 (427)

76.0 (524)

27.5 (190)

47

1000 (538)

70.0 (483)

24.0 (165)

44

1200 (649)

57.0 (393)

21.0 (145)

40

1400 (760)

35.0 (241)

18.0 (124)

37

1600 (871)

24.0 (165)

16.0 (110)

44

Corrosion Resistance

Types 316 and 316L Stainless Steels exhibit better corrosion resistance than Type 304. They provide excellent resistance to pitting type corrosion such as encountered in a sea coast environment. They also provide good resistance to most chemicals involved in the paper, textile and photographic industries. They are particularly useful in one to five percent sulfuric acid solutions up to 150°F (66°C) as well as acetic, phosphoric, formic and tartaric acids, and in certain chloride, bromide and iodide solutions.

Oxidation Resistance

The maximum temperature to which Types 316 and 316L can be exposed continuously without appreciable scaling is about 1700°F (927°C). For intermittent exposure, the maximum exposure temperature is about 1600°F (871°C).

Heat Treatments
Types 316 and 316L are non-hardenable by heat treatment. 
Annealing: Heat to 1900 – 2100°F (1038 – 1149°C), then rapidly quench.

Stainless Steel Valve Balls 316/316L

Size:1/2″~56″
Product Feature:
Material: F304, F316, CF8M, CF8, 1.4301 1.4008,4A …etc. by Forging and centrifugal casting
Roundness ≤0.03mm
Surface roughness=0.4μm
Outside diameter. 1/2″-4″ +-0.03 mm, 6″-12″+-0.05 mm (Outside diameter tolerance)
Inner diameter 1/2″-4″ 0~0.03mm,6″~12″ 0~0.05mm (Inner diameter tolerance)

 

MaterialF304, F316, CF8M, CF8, 1.4301 1.4008,4A …etc. 
Dimension1/2″~56″
Processing of blankForging, centrifugal casting , coil welding
Sample making timeNormally 5days
Lead timeNormally within 30 days
PackageCartons if no special requests
Types of ballFloating ball , trunnion ball ,hollow ball, solid ball, Metal to Metal ball, T-port ball,V-port ball,Special ball,Blank ball
Surface treatmentPolishing, nickel plating (ENP), chromium plating (ECR), tungsten carbide (TCC), chromium carbide (CCC), NI60, NI55 and surfacing nickel-based materials

*Any other sizes available on request according to customer drawings!