Gr 660A Flange Nut is a high-performance flange nut made of A453 Gr 660A high-temperature alloy material, which meets ASTM standards and is designed for high-temperature environments. Its M80 size and A-grade product grade ensure its reliability and durability under various harsh conditions. The tensile strength of this nut reaches 895 N/mm² and the elongation is 25%, which enables the reliability of the connection to be maintained in high temperature and high pressure environments. Whether in oil pipeline flange connections or other industrial applications, Gr 660A Flange Nut can provide excellent performance.
The high temperature resistance of this Gr 660A Flange Nut makes it particularly suitable for the oil and gas industry, especially in the connection of oil pipeline flanges. Due to its excellent mechanical properties, Gr 660A Flange Nut can effectively resist high temperature and corrosive environments, ensuring the safe and stable operation of the pipeline system. In addition, with its excellent ductility, this nut can provide better adaptability during installation, reduce stress concentration caused by temperature changes, and thus extend service life.
When choosing flange nuts, Gr 660A Flange Nut is an ideal choice. Its high strength and high temperature resistance make it excellent in various industrial environments, especially in the oil and gas industry. Whether it is a new project or maintaining an existing facility, choosing A453 Gr 660A flange nuts can provide reliable protection for your project.
Xiamen Qishine Imp.&Exp. Co.,Ltd. PRODUCT QUALITY CERTIFICATE CUSTOMER：St. Petersburg Russia 1. Gr 660A Flange Nut DESCRIPTION DATE： DESIGNATION：Gr 660A Flange Nut | MATERIAL GRADE: A453 Gr.660 Cl.A | MATERIAL MARK：660A | STANDARD：ISO 4033-1999 | SPECIFIATIONS：ASTM A453/A453M-2017 | HEAT NO：222A-0954 | Specs | M80 | PO. Item | 13# | | | Qty/PCS | 40 | | | | | 2. Gr 660A Flange Nut CHEMICAL COMPOSITION | elements | C | Si | Mn | P | S | Cr | Ni | Mo | Al | Ti | B | V | norm values | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.040 | ≤0.030 | 13.5-16.0 | 24-27 | 1.0-1.5 | ≤0.35 | 1.9-2.35 | 0.001-0.010 | 0.1-0.5 | Actual | 0.0414 | 0.624 | 1.25 | 0.0247 | 0.0173 | 14.0 | 24.4 | 1.19 | 0.132 | 2.022 | 0.0010 | 0.187 | 3. Gr 660A Flange Nut MECHANICAL PROPERTY | INSPECT. ITEM | -196℃ impact test J | Hardness HB | Spec | - | HB247-341 | Actual | 61.25 | 64.34 | 64.20 | 262 | 4. Gr 660A Flange Nut HEAT TREATMENT | METHOD： 980℃ 720℃ Solid solution + Prescription Solid solution Prescription MEDIUM：water | 5. SURFACE & CLASS | THREAD CLASS：6H | DIMENSIONAL AND SURFACE INSPECTION：OK | APPEARANCE TREATMENT: Color | Testconclusions | After Inspection , The quality of this product get the ISO 4033-1999、ASTM A453/A453M-2017standard of the pattern and the industry standard。 | THE ABOVE MATERIAL IS MANUFACTURED IN ACCORDANCE WITH SPECIFIED SPECIFICATION AND IS SUBJECT TO RANDOM TEST AND INSPECTION.THE CERTIFICATE IS PREPRARED BASED ON THE TEST RESULTS WHICH ARE OBTAINED UNDER THE SUPERVISION BY THE INSPECTOR.THE INSPECTOR IS INDEPENDENT OF THE MANUFACTURER. |
Inspectors：Jin Biao Inspect Engineers： Yang Mingming Quality inspection seal |
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