HASTELLOY ni aloi iliyotengenezwa kwa nikeli-kromiamu-molybdenum ambayo inachukuliwa kuwa aloi inayostahimili kutu inayopatikana kwa njia nyingi zaidi.
Aloi hii ni sugu kwa uundaji wa mipaka ya nafaka katika eneo lililoathiriwa na joto, na hivyo kuifanya iweze kutumika katika matumizi mengi ya kemikali katika hali ya svetsade. Umbo la Hastelloy: Bomba / Mrija (uliounganishwa na usio na mshono), Bamba / Karatasi, Upau, Waya, Vipimo
Waya: 0.01-10mm
Ukanda: 0.05*5.0-5.0*250mm
Upau: φ4-50mm; Urefu 2000-5000mm
Bomba: φ6-273mm;δ1-30mm; Urefu 1000-8000mm
Karatasi: δ 0.8-36mm; Upana 650-2000mm; Urefu 800-4500mm

Daraja		C276	C22	C4	B2	B3	N
Kemikali Muundo (%)	C	≤0.01	≤0.015	≤0.015	≤0.02	≤0.01	0.04-0.08
	Mn	≤1	≤0.5	≤1	≤1	≤3	≤1
	Fe	4-7	2-6	≤3	≤2	≤1.5	≤5
	P	≤0.04	≤0.02	≤0.04	≤0.04	–	≤0.015
	S	≤0.03	≤0.02	≤0.03	≤0.03	–	≤0.02
	Si	≤0.08	≤0.08	≤0.08	≤0.1	≤0.1	≤1
	Ni	pumzika	pumzika	pumzika	pumzika	≥65	pumzika
	Co	≤2.5	≤2.5	≤2	≤1	≤3	≤0.2
	Ti+Cu	–	–	≤0.7	–	≤0.4	≤0.35
	Al+Ti	–	–	–	–	≤0.5	≤0.5
	Cr	14.5-16.5	20-22.5	14-18	≤1	≤1.5	6-8
	Mo	15-17	12.5-14.5	14-17	26-30	≤28.5	15-18
	B	–	–	–	–	–	≤0.01
	W	3-4.5	2.5-3.5	–	–	≤3	≤0.5
	V	≤0.35	≤0.35	–	0.2-0.4	–	≤0.5