Delta Verification Registry

Ref: ASTM-CF8M-SS316-P99
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DELTADRAIN-CREDENTIAL
ID: LD-CAST-SERIES
Delta Engineered Drainage Systems

Certificate of Conformance

American Standard Specification Certification of Purity

This certifies that the structural castings, dimension layouts, alloy compounds, and chemical purities of Delta drainage assemblies are strictly manufactured to meet international standards. This document verifies compliance as detailed under the registered standard specification code below.

Conformance StandardASME A112.6.3 / ASTM A48 / ASTM A351
Registry NumberASTM-CF8M-SS316-P99
Official Scope of Certification

Verification of chemical composition, corrosion resistance indices, and physical standards conformities for Austenitic Stainless Steel (A351 CF8/CF8M), Cast Nickel Bronze (UNS C99700), and Heavy Gray Cast Iron (A48 Class 35B).

CONFORMANCE & INSPECTION METRICS:

  • Spectrometric composition: Chromium 16-18%, Nickel 10-14%, Molybdenum 2-3% (CF8M/SS316).
  • Corrosion pitting resistance equivalent index (PREN) verified >= 23 or higher.
  • Threads and collars machined strictly per ASME B1.20.1 NPT connection profiles.
  • Dura-Coat asphaltic protective lacquer applied for extreme chemical resistance.
Manufactured By: DELTA METALLURGY FOUNDRY
Facility Code: LHR-CAST-SERIES
Issue Date: March 05, 2026
Expiration: March 04, 2029
Tanveer Ahmed
SEAL
Engr. Tariq Saeed (Metallurgist & Quality Director)Chief Operations & Inspector Desk

This digital credential corresponds directly with the hard-copy certificate issued on dispatch. To request certified hard copies, email us at deltainfofficial@gmail.com with your reference serial.