BDF can offer you good quality 17-7PH hex nuts, 17-7PH hex heavy nuts, 17-7PH nylon lock nuts, 17-7PH hex jam nuts etc. Our standards/specifications covers ASTM, ASME, DIN, ISO. Such as DIN934, 5587, ISO4032, ISO4033, ASME/AISI 18.2.2 etc. We can also manufacture all shapes of non-standard hastelloy nuts according to customers’ drawing. BDF is able to produce a wide range of sizes nuts by cold or hot forging. The diameter of nuts ranges from M6-M80 in Metric and 5/16” to 3 1/2” in Inch. BDF had kept some common sized nuts in stock.
chemical composition:
Carbon (C) ≤ 0.09
Manganese (Mn) ≤ 1.00
Nickel (Ni) 6.50 ~ 7.75
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.030
Chromium (Cr) 16.00～18.00
Aluminum (Al) 0.75~1.50
17-7PH is an austenitic-martensitic precipitation hardening stainless steel developed on the basis of 18-8CrNi, also known as controlled phase change stainless steel.