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NDT Requirements for Pressure Vessel Heads from Manufacturer in China

NDT Requirements for Pressure Vessel Heads from Manufacturer in China

Henan Guojiang Precision Formed Head Co., Ltd. Manufacturers ASME-Compliant Large-Sized Pressure Vessel Heads with Welding Gap, We Carry out Strict Full-Range Non-Destructive Testing for all Pressure Vessel Heads. Including section-by- section Radiographic Testing (RT) for Internal Weld internal defects and Liquid Penetrant Testing (PT) for surface-breaking flaws. RT is Performed via Section-by Section Exposure instead of Full-length Single-Shot Exposure to Guarantee reliable inspecition quality.

NDT Requirements for Pressure Vessel Heads from Manufacturer in China

For Large-diameter Pressure Vessel Heads with Welded Gaps, Nib-Destructive Tesing (NDT) Serves as the Core Quality Control Barrier. It Detects Internal and Surface Flaws without Damaging Finished Heads.

So It is Very Important for Non-Destruction Testing before Delivery. Nowdays, In the Industry There are Several Mainstream Non-Destructive Testing Methods As Following:

(1). RT= Radiographic Testing: RT for Internal Welding Defects of Curcumferential & Longgitudinal Welds.

(2). PT= Penetrant Testing: Find out the Tiny Surface Cracks on Stainless Steel, Duplex Steel, Non-Magnetic Alloy Heads. And Carbon Steels.

(3). UT=Ultrasonic Testing: Detect Internal Thickness Deviation, Internal Cracks and Material Lamination of Steel Plates.

(4). MT=Magnetic Particle Testing: INspect Surface & Subsurface Defects for Carbon Steel and Ferromagnetic Components.

Henan Guojiang Precision Formed Head Co., Ltd. ImPlements Segmental RT Radiographic Inspection on All Welded Heads, All Our Delivered Pressure Vessel Heads Fully Comply with ASME & PED Standards.

Pub Time : 2026-08-10 10:36:32 >> Blog list

Contact Details

Henan Guojiang Precision Formed Head Co., Ltd.

Contact Person: Ms. Lynn Chen

Tel: +86 15037307289

blog About NDT Requirements for Pressure Vessel Heads from Manufacturer in China

Ellipsoidal Head

Conical Head

Elliptical Head

Torispherical Head

Polished Head

Pressure Vessel Head

Dished Tank Heads

Stainless Steel Head

Carbon Steel Head

Flat Dished Head

Spherical Cap Head

Pipe End Cap

ASME Dished Head

Flanged and Dished Heads

Polished Head

Polished Stainless Steel Torispherical Dished Head RA 0.3μM For LNG Cryogenic Tanks

Polished Stainless Steel(SUS304 )Reducing Dished Head With 500mm Diameter And 2.5mm Thickness

RA 0.3μm Precision Polished Dished Head with 1100mm Diameter in S30408 Stainless Steel

Ellipsoidal Head

ASME Cold Pressing Ellipsoidal Head 2250×16 Cryogenic Tanker Dished Head

S30408 Ellipsoidal Dished Head 2700mm Open ID 8mm Thickness GB/T 25198-2023 Compliant

S30408 EHA（Cold-Pressed Forming）Inner Diameter 2500mm, Wall Thickness 10mm, Suitable for Cryogenic Tankers