Radiographic Testing (RT) Services for Forgings | X-Ray Inspection per ASTM E94 | Shivam Forge

Producing a Permanent Picture of What's Inside

Volumetric inspection methods — those capable of detecting discontinuities distributed throughout a component's internal material volume, rather than only at its surface — represent an essential category of quality verification for forged components where internal soundness genuinely matters to structural reliability, and radiographic testing occupies a distinctive position within this category through the specific physical mechanism it employs: rather than analyzing reflected sound wave signals the way ultrasonic testing does, radiographic testing passes X-rays (or, less commonly for forgings, gamma rays) through the component and captures the resulting image on film or a digital detector, exploiting the fact that different materials and discontinuities attenuate radiation differently, producing visible density variations in the resulting image wherever an internal discontinuity exists.

This image-based approach delivers a genuinely distinctive practical advantage over UT's more operator-dependent, real-time signal interpretation: a radiograph is a permanent, physical (or digital) record that can be reviewed repeatedly, by multiple qualified reviewers, at any point after the original inspection — including potentially years later if a question arises about a specific component's original internal condition. This permanent record characteristic makes radiographic testing particularly valuable for applications where thorough documentation and the ability to independently re-review inspection results carries genuine importance, complementing UT's own strengths in situations favoring faster field inspection or particular sensitivity to certain discontinuity orientations.

Radiographic testing's particular effectiveness at detecting porosity and certain inclusion types reflects how these specific discontinuity types interact with X-ray attenuation: porosity (small internal voids) and many non-metallic inclusions attenuate radiation differently enough from surrounding sound material to produce clearly visible indications in a properly exposed radiograph, making RT a particularly well-suited method for these specific discontinuity categories — one of several reasons demanding applications, particularly in aerospace and pressure vessel manufacturing, frequently specify both RT and UT together rather than relying on a single volumetric inspection method alone, since the two methods' complementary sensitivity profiles together provide more comprehensive internal soundness verification than either method achieves independently.

For customers requiring radiographic testing of forged components — for aerospace, pressure vessel, or other internal-soundness-critical applications, or wherever a permanent, reviewable inspection record adds genuine value — Shivam Forge provides film and digital radiography per ASTM E94/E1032 with full documentation. Contact our quality engineering team at +91-9265772827 or sales@shivamforge.com with your component and acceptance criteria specification to discuss scope and quotation.