39NiCrMo3 34CrNiMo4 Forged/Forging Steel Forging Rings Shafts Flat Round Bars Sleeves Bushes Bushing Discs Disks Blocks Pipes Tubes Hollow bars shells barrels

• Customization: Available
• Type: Alloy Steel Bar
• Standard: AISI
• Model NO.: 39NiCrMo3 forged bars
• Technique: Forged
• Application: Die Steel Bar
• Surface Treatment: Polished
• Alloy: Alloy
• Special Use: Mold Steel
• Material of Forged Bars: 39NiCrMo3
• Transport Package: Wooden or Steel Frame Crate Packing
• Specification: CE
• Trademark: LY
• Origin: Jiangyin
• HS Code: 722840000
• Production Capacity: 5000 Tons/Year

Product Description

We are professional 39NiCrMo3 34CrNiMo4 Forged/Forging Steel Forging Rings Shafts Flat Round Bars Sleeves Bushes Bushing Discs Disks Blocks Pipes Tubes Hollow bars shells barrels factory from china

Chemical analysis -% by mass

Chemical elements	C	Si	Mn	P	S	Cr	Mo	Ni
%, by mass	0,35 - 0,43	0,40	0,50 - 0,80	max 0.025	max 0,035	0,60-1,00	0,15-0,25	0,70-1,00
Permissible deviation	± 0.02	± 0,03	± 0,04	+ 0.005	+ 0.005	± 0.05	± 0.03	± 0.05

 
Mechanical properties in the quenchedand tempered condition

	d  ≤ 16mm oder t ≤ 8mm	16mm < d  ≤ 40mm 8mm < t  ≤  20mm	40mm < d  ≤ 100mm 20mm < t  ≤  60mm	100mm <  d  ≤ 160mm 60mm < t  ≤  100mm	160mm < d  ≤  250mm 100mm < t  ≤  160mm
Re min (MPa)	785	735	685	635	540
Rm (MPa)	980-1180	930-1130	880-1080	830-980	740-880
A  min. (%)	11	11	12	12	13
Z  min. (%)	40	40	45	50	50
KV min. (J)	35	35	40	40	40

The Process As Follow: ingot → heat → forging → heat treatment(normalizing+tempering) → inspection  → rough machining → UT → 2nd heat treatment → finishing machining → inspection .
Quality Control: UT,MT,RT,PT,chemical composition test,mechanical property test,etc.
Heat Treatment: Normalize,Quenching,Tempering,Anealled.
Surface Treatment: painting,plating,polishing,black oxide,transparent anti-rust oil.
Inspection: Besides our in-house inspecion, you could also choose a third party inspection.
Standard: ANSI,ASTM,ASME,API,JIS,DIN,BS,EN,KS,UNI,SABS,GOST.
Certificate:  1, Raw material certificate(material chemical compositon)
                      2, Heat treatment sheet report
                      3, Dimension inspection report
                      4, UT test report
Packing:  Seaworthy plywood packaged on stell pallets or as customer's request
Delivery Date: Decided by the amount and dimensions of products. Usually we control the large diameter rings' delivery time within 5 weeks after we receive your formal order.
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.