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Classification

Duplex Steel Valve Balls

Valve Balls

TongBall duplex steel and super duplex steel valve balls provide ultra-high strength and resistance to chloride stress corrosion cracking due to austenite-ferrite microstructure. Specialized forging and heat treatment ensure the best phase balance, making it suitable for seawater, offshore and high-pressure chlorine-containing environments (up to 250°C), and it performs exceptionally well in brine, sulfur-containing oil and gas, and acidic chloride media.

Size Range 

1/2"- 56" (Custom Sizes Available)

Pressure rating 

PN10- PN420 (Class150 - 4500)

Ball Material 

F51 (S31803), F53 (S32750), F60 (S32205), etc.

Manufacturing ProcessForging
Coaxiality ≤0.01mm
Roundness Accuracy 

≤0.02mm

Surface Roughness Ra ≤ 0.4 μm
Outside Diameter Tolerance1/2" - 4" : +0.03 mm6" - 12" : +0.05 mm
Inner Diameter Tolerance 1/2" - 4" : 0~ +0.03 mm6" - 12" : 0~+0.05 mm


Duplex Steel Valve Balls
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YONGJIA TONG BALL VALVE CO.,LTD.

Anfeng Industrial zone, Oubei Town Wenzhou China

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+86-13106135735

Email

sales@china-valve-ball.com