We are professional CONTOURED ROLLED RINGS, PROFILED ROLLED RINGS factory from china
We could make CONTOURED ROLLED RINGS, PROFILED ROLLED RINGS with diamter from 80MM to 6000MM, with weight from 10KGS to 15000KGS
We are equiped with 1 tons, 3 tons, 5 tons, 9 tons open die forging parts hammer, 5000 tons hydraulic press, and 1 metres, 6 metres seamless rolled rings machine.
Folllowing is the steel grade of CONTOURED ROLLED RINGS, PROFILED ROLLED RINGS that we could do:

Alloy and carbon steel forging steel grades:
A182-F1, A182-F2, A182-F9, A182-F11, A182-F12, A182-F21, A182-F22, A182-F36, A182-F91, A182-F92, A694-F42, A694-F46, A694-F48, A694-F50, A694-F60, A694-F70, SA-350 LF1, SA-350 LF2, SA-350 LF3, SA-350 LF5, SA-350 LF6, AISI 1045, AISI 4140, AISI 4130, AISI 4340, AISI 4317, AISI 4130, AISI 8620, AISI 9840, AISI 4145H, AISI 4145H, AISI 4145H Mod, AISI 4330V, AISI 4330V Mod. AISI 4150, AISI 1020, 42CrMo4, 25CrMo4, 34CrNiMo6, 17CrNiMo6-4 20NiCrMo22, 34CrMo4, 30CrNiMo8, 36CrNiMo4, 16CrNiMo12, 40NiCrMo7, 41CrALMo7, 30NiCrMo12, 12CrMo9-10, 18CrMos4, 18CrNiMo7-6, 17CrNiMo6, 16MnCr5, St52-3, S355j2g3, 50CrMo4, 39NiCrMo3, , 20NiCrMo2-2
Stainless Steel Forged Steel Grades
A182-F6a, A182-F6b, A182-F304, A182-F304L, A182-F310, A182-F316, A182-F316L, A182-F317, A182-F317L, A182-F347, AISI 309, AISI 310s, AISI 316Lmod, A182-F48, A182-F321, A182-F347, A182-F348, Nitronic 50, Nitronic 40, Nitronic 60, Nitronic 30, Xm-11, Xm-10, UNS S21800, Alloy 20, 904L, PH13-8Mo, 17-4ph, 15-5ph, 17-7ph, Ph15-7 Mo, 254Smo, Al-6Xn, 654SMO, A182-F44, A182-F45, A182-F51, A182-F53, A182-F60, A182-F55, A182-F62, A182-F52
Nickel alloy and Super ALloy Forging Steel Grades
Nickel 200, Nickel 201, Monel 400, Monel R-405, Monel K-500, Hastelloy C-22, Hastelloy X, Hastelloy C-4, Hastelloy B-2, Hastelloy C-276, Hastelloy C-2000, Hastelloy B, Nimonic 75, Nimonic 90, Nimonic 80A, Nimonic 105, Nimonic 901, Inconel 600, inconel 601, inconel 617, inconel 625, inconel 686, inconel 690, inconel 693, inconel 718, inconel 725, inconel X-750, incoloy 800, incoloy 800H, incoloy 800HT, Incoloy 825, Incoloy 926, Incoloy 890, Incoloy 925, Incoloy 901, Incoloy 945, Incoloy A-286, NI-SPAN-C Alloy 902, MP35N, MP159, Multimet N155, Haynes 230, Haynes 188, Haynes 25, Udimet 500, Rene 41, Waspalloy, Invar 36, Invar 42, Stellite 6B, Kovar alloy,
UNS NO6022, UNS NO6200, UNS No5500, UNS NO6002, UNS N010665, UNS N10276, UNS N10001, UNS N07080, UNS N06600, UNS N06601, UNS NO6625, UNS N06686, UNS N06693, UNS N06690, UNS N07718, UNS N07725, UNS N07750, UNS N08800, UNS N08811, UNS N08810, UNS N08825, UNS N09925, UNS S66286, UNS N07500, UNS K93600
2.4602, 2.4675, 2.4816, 2.4663, 2.4642, 2.4668, 2.4669, 1.4958, 2.4858, 2.4375, 2.4665, 2.4617, 2.4819. 2.4631, 2.4851, 2.4606, 1.4876, 1.4959, 1.4980, 2.4983, 2.4656

Tool And Die Steel Forged Steel Grades
AISI 6F7, AISI A2, AISI O1, AiSI O2, AISI S7, AISI D6, AISI S1, AISI D2, AISI A6, AISI O7, AISI L2, H13, H11, H12, AISI L6, H21, H10, H10A, H19, 314, H19A, P20, P20+Ni, P20+S, S136, 718
SKT6, SKD12, SKD1, SKD2, SKS3, SKS41, SKS95, SKD11, DC53, SKS43, SKD61, SKD6, SKT4, SKD5, SKD7, SKD62, NAK80
1.2767, 1.2363, 1.2510, 1.2080, 1.2436, 1.2542, 1.2379, 1.2824, 1.2550, 1.2509, 1.2210, 1.2344, 1.2606, 1.2782, 1.2678, 1.2889, 1.2605, 1.2343, 1.2714, 1.2581, 1.2365, 1.2779, 1.2661, 1.2083, 1.2311, 1.2312, 1.2738, 1.2316
Heat treatment:
Normalized / Annealed / Quenched / tempered
Surface Treatment:
painting,plating,polishing,black oxide,transparent anti-rust oil
Quality control:
UT,MT,RT,PT,chemical composition test,mechanical property test,etc.
Inspection:
1, Raw material certificate(material chemical composition) 2, Heat treatment sheet report
3, Dimension inspection report      4, UT test report 
Delivery condition:
Hot forged +Rough machined (black surface after Q /T)+ Turned 
Competitive Advantage:
Quality control and management to the whole produce process, including ingot smelting, forging, heat treatment, machining and strictly final inspection prior to delivery.
Excellent product quality and service, competitive price, "in-time" delivery