Third-Party Test Reports

Full chemical composition analysis of AISI 321 (UNS S32100 / 1.4541) stainless steel plate by optical emission spectrometry. Report covers all controlled elements including C, Mn, Si, Cr, Ni, Ti, P, S, and trace elements. Test results verified against ASTM A240 and GB/T 4237 specification limits. CNAS accredited laboratory with equipment calibration data included.

Room temperature tensile testing of AISI 321 stainless steel plate per GB/T 228.1 (equivalent to ASTM E8). Report includes complete stress-strain data, yield strength (Rp0.2), ultimate tensile strength (Rm), elongation after fracture (A%), and reduction of area (Z%). Test conducted on a calibrated universal testing machine at 23±5°C with CNAS traceability.

Dual-accredited (CMA & CNAS) chemical composition analysis of AISI 321 seamless stainless steel pipe. Spectrometric analysis verified all major and trace elements against AISI 321 specification requirements. CMA accreditation ensures the report is legally valid for domestic Chinese quality inspection, while CNAS provides international recognition under ILAC-MRA mutual recognition arrangement.

Intergranular corrosion (IGC) susceptibility test on AISI 321 seamless pipe per GB/T 4334 Method E (equivalent to ASTM A262 Practice E — Strauss test). Specimen subjected to boiling copper sulfate-sulfuric acid solution for 16 hours followed by bend testing. Report documents test conditions, solution composition, specimen preparation, and post-test examination results confirming no intergranular cracking.

Comprehensive intergranular corrosion test report for AISI 321 seamless pipe with extended documentation. Includes full test methodology, solution preparation records, specimen dimension verification, temperature monitoring logs, and detailed post-test metallographic examination. Both GB/T 4334 and ASTM A262 equivalent procedures documented. Report includes original laboratory equipment calibration certificates.

CNAS accredited room temperature tensile testing of Nimonic 75 (NiCr20Ti / UNS N06075) nickel-chromium alloy precision strip. This 80Ni-20Cr alloy is widely used in aerospace gas turbine combustion chambers and industrial furnace components. Report includes yield strength, ultimate tensile strength, elongation, and Young's modulus data. Test specimens prepared and tested per GB/T 228.1 standards.

Chemical composition analysis of S31020 (UNS S31020) heat-resistant austenitic stainless steel seamless pipe. S31020 is a high-chromium, high-nickel grade designed for elevated temperature service up to 1100°C in furnace components and thermal processing equipment. Report includes full spectrometric analysis of Cr, Ni, Mn, Si, C, P, S, and other alloying elements verified against ASTM A213/A312 specifications.

Combined chemical composition analysis and room temperature tensile test for XH60BT nickel-based superalloy. XH60BT is a Russian-grade nickel-chromium heat-resistant alloy (analogous to ЭП708 / Inconel 718-class) used in aerospace engine hot-section components and industrial gas turbines. Report covers full spectrometric analysis plus yield strength, tensile strength, elongation, and reduction of area at ambient temperature.

Comprehensive test report for XH60BT nickel-based superalloy with extended documentation. Includes detailed chemical composition analysis across all specified elements, room temperature tensile properties with complete stress-strain curves, specimen geometry documentation, and equipment calibration verifying traceability. This report serves as a complete material certification document for aerospace and power generation quality requirements.

Chemical composition analysis of Russian-grade XH58B (ЭП648) nickel-based superalloy seamless pipes. XH58B/ЭП648 is a high-temperature nickel-chromium alloy with additions of tungsten, molybdenum, and niobium, designed for long-term service at 700-900°C in aerospace engine combustion chambers and transition ducts. CNAS accredited spectrometer analysis confirms all elements within specification limits.

Mechanical properties test report for XH58B (ЭП648) nickel-based superalloy pipes. Report documents room temperature tensile properties including yield strength (Rp0.2), ultimate tensile strength, elongation, and reduction of area. Additional hardness testing per Brinell and Rockwell scales included where applicable. All test data referenced against GOST and ASTM equivalent standards for nickel alloy pipe products.

Full chemical composition analysis of Hastelloy C-276 (UNS N10276) nickel-molybdenum-chromium alloy bar (Φ10mm) by spark atomic emission spectrometry per ASTM E3047-22. Results verified against ASME BPVC Section II-B 2025 SB-574 specification: Cr 15.78%, Mo 15.81%, Fe 5.74%, Si 0.06%, Mn 0.34% — all elements within N10276 specification limits. Report includes equipment data (OE750 spectrometer), heat/batch number traceability, and laboratory accreditation stamps.

Comprehensive SGS test report for GH4169 (Inconel 718) precipitation-hardening nickel superalloy bar covering three test categories: (1) Room temperature tensile test per GB/T 228.1-2021 — Rm 887 MPa, Rp0.2 525 MPa, elongation 53%; (2) Austenite grain size measurement per GB/T 6394-2017 — average grain size 6.5; (3) Macroscopic inspection per GB/T 14999.2-2012 — no cracks, shrinkage, bubbles, porosity, slag, or inclusions detected. Report includes macrographs and sample photographs.

SGS third-party test report for Monel 400 (UNS N04400) nickel-copper alloy seamless pipe. Monel 400 is widely used in marine engineering, chemical processing, and hydrocarbon processing for its excellent corrosion resistance to seawater, hydrofluoric acid, and alkalis. Report covers material verification testing with full traceability documentation. SGS accreditation ensures international recognition under ILAC-MRA mutual recognition arrangement.

Third-party material test report for SUS630 (05Cr17Ni4Cu4Nb / UNS S17400 / 1.4542) precipitation-hardening stainless steel plate. This martensitic stainless steel grade is strengthened by copper precipitation, offering high strength and moderate corrosion resistance for aerospace, offshore, and chemical processing applications. Report issued by Zhongke Testing (Chinese Academy of Sciences affiliated laboratory) with full material certification data and specification verification.