BDF can offer you good quality alloy 31 hex head bolts, alloy 31 socket head/allen bolts, alloy 31 hex cap screws, alloy 31 hex heavy bolts… in full thread or half thread. Our standards/specifications covers ASTM, ASME, DIN, ISO. Such as DIN933, DIN931, DIN912, ISO4014, ISO4017, ASME/AISI 18.2.1 etc. We can also manufacture all shapes of non-standard hastelloy bolts according to customers’ drawing. BDF is able to produce a wide range of sizes bolts by cold or hot forging. The diameter of bolts ranges from M6-M80 in Metric and 5/16” to 3 1/2” in Inch, and length can be up to 1000mm for bolts.
(1) Excellent corrosion resistance in halide media (whether acidic or basic).
(2) Excellent corrosion resistance in any concentration of sulfuric acid.
(3) Excellent corrosion and corrosion resistance in phosphoric acid media.
Alloy 31 (N08031) Nickel-based alloy is a nitrogen-containing iron-nickel-chromium-molybdenum alloy with properties between super austenitic stainless steel and existing nickel-based alloys. Alloy 31 (N08031) nickel-based alloy is suitable for use in chemical and petrochemical, environmental engineering and oil and gas production industries.If our alloy 31 bolts caters to your requirement, welcome to contact our professional manufacturers and suppliers. Highly qualified products, competitive price and good after-sale service can be assured.