RING JOINT GASKET JD-80 Machined from solid metals in a variety of shapes and are designed for high pressure, high temperature or highly corrosive applications by selecting the most suitable material and shape. Our products according API 6A standard.   NO.   Description   Cross section JD-80(T)   OvaltypeJD-80   (B)   OctagonaltypeJD-80   (API-RX) API-RX   API-RX typeJD-80   (API-BX) API-BX   API-BX typeService Range   Metallic Material Identification (℃)   Temperature Brinell* Rockwell B+ Soft Iron 9056D-40~500Low Carbon 12068S-40~195F5 13072F5304 SS 16083S304-195~760321 SS 16083S321-195~760316L SS 16083S316 L-100~760347 SS 16083S347-195~925SMO254 18089S31254S31803 S31803S32750 S32750Monel 400 15080N04400-150~820Inconel 600/625 15080600/625-100~1090Inconel 800 15080800-100~870Inconel 825 19592825-100~870Nickel 200 11062NI-195~760Titanium --TI-100~1090Hast C276 21095C-276-185~1090