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DIN 17211 Alloy Steel Forgings 1.8519/31crmov9 Tool Nitriding Steel Flat Round Bar

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Brand Name :	TSING SHAN
Model Number :	1.8519 31CrMoV9 QT
Certification :	ISO SGS MTC
Price :	0.65-1.85 USD/KG
Payment Terms :	L/C, T/T
Supply Ability :	50000KGS
Delivery Time :	7 Days

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DIN 17211 Alloy Steel Forgings 1.8519/31crmov9 Tool Nitriding Steel Flat Round Bar

Nitriding Steel Round Bar D 470 mm Material 1.8519 31CrMoV9 QT Forged Steel Soild Rod

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Product Name	31CrNoV9 33CrMoV12-9 34CrAlNi7-10 41CrAlMo7-10 1.8519 1.8522 1.8550 1.8509 alloy steel bar/rod
Material	31CrNoV9 33CrMoV12-9 34CrAlNi7-10 41CrAlMo7-10 1.8519 1.8522 1.8550 1.8509
Standard	AISI,ASTM,GB,DIN,EN,BS,JIS
Technique	Hot rolled,cold rolled
Surface	No.1,2B,BA
Diameter	3-480mm or as required
Length	3000mm,4000mm,5800mm,6000mm,12000mm or as required
Tolerance	±5%
MOQ	1TON
Trade Terms	EXW,FOB,CFR,CIF
Payment Terms	30% TT for deposit,70% TT/70% LC at sight balance before shipment.
Delivery time	Shipped in 7-15 days after payment.
Package	Standard sea-worthy package or as required.

About products
31CrMoV9 is a nitriding steel which has at least 2.3%Cr,0.15%Mo,0.1%V as strengthening alloy elements.
Due to its high wear resistance,it is mainly used in the automotive industry and general components mechanical engineering.
30CrMoV9 is difficult to weld and therefore should not be used in weld constructions.It can attain surface hardness of 800 HV
after nitriding.31CrMov9 is directly involved the nitriding steel 30CrMoV9 (DIN1.7707).

Chemical Composition(%)

C	Mn	P	S	Si	V	Cr	Mo
0.27-0.34	0.40-0.70	≤ 0.025	≤ 0.035	≤ 0.4	0.1-0.2	2.3-2.7	0.15-0.25

Physical Property
Density ,g/cm3: 7.85
Specific heat capacity, J/(kg.K):460
Thermal conductivity ,W/(m.K):42
Electric resistivity,Ohm.mm2 /m:0.19
Modulus of elasticity ,Gpa: 210
Mechanical Property

Diameter d mm	16-40	40-100	100-160	160-250
Yield Strength Mpa	≥900	≥800	≥700	≥650
Tensile Strength Mpa	1100-1300	1000-1200	900-1100	850-1050
Elongation, %	≥9	≥10	≥11	≥12
impact,J	≥25	≥30	≥35	≥40
Hardness,HB	331-380	298-359	271-331	253-319

Forging
Heat the temperature between 1050ºC-1150ºC,hold suitable time for the steel to be thoroughly heated.Reheat the steel once
temperature below 850°C. Crack is easily occured when improper cooling way after forged,so it should be cooled as slowly
as possible in the furnace or in sand after forged.
Heat Treatment
Soft Annealing
Heat to 650-720ºC, cool slowly in the furnace. This will produce a maximum Brinell hardness of 248.
Hardening
Harden from a temperature of 870-930ºC, followed by oil/polymer or water quenching.
Tempering
Tempering temperature: 580-700ºC.
Nitriding
Gas/plasma nitriding temperature (gas, salt bath): 570-580ºC
Gas/plasma nitriding temperature (powder, plasma): 580ºC
Surface hardness after nitriding: 800 HV

Hold time,h	Hardness,HV
30	750	540	430	410	400	380	380
90	830	750	640	530	430	410	410
120	790	730	660	600	540	460	400
180	800	760	700	640	580	550	420
Depth,mm	0.15	0.25	0.35	0.45	0.55	0.65	1

Application
31CrMoV9 nitriding steel is used in mechanics automotive and general mechanics, which must be nitrided for very high wear forces,
for example, gears, rods or axes.Structural parts of medium and large cross sections and high surface hardness, e.g., valve and
gate valves, cylinders for combustion engines, superheated steam valves and fittings.

F A Q
1. How can I know whether you are a reliable company?
We are engaged in steel for nearly 10 years and have high visibility in domestic. We welcome you to inspect our company at any time.
2. Can you guarantee your products?
Yes, we guarantee your 100% satisfaction on all our products. Please feel free to feedback us immediately.
3. Do you provide samples?
Yes, we can provide most of the product samples. We will charge a little sample fee. But we will return the charge if you place an order. if you asked to use DHL, Blue Dart Express, FedEx, etc. to send samples, you can inform us in advance to prepare.
4. Can I visit your company?
Of course, If you want to order our products and visit our company, please contact us to make an appointment.

Product Tags:

DIN 17211 Alloy Steel Forgings

1.8519 Alloy Steel Forgings

31crmov9 Alloy Steel Forgings

DIN 17211 Alloy Steel Forgings 1.8519/31crmov9 Tool Nitriding Steel Flat Round Bar

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38CrMoAl Alloy Structure Steel Round Bar DIN 1.8509 41CrAlMo7-10 Forged Rod 650mm

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Company Info.

JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

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DIN 17211 Alloy Steel Forgings 1.8519/31crmov9 Tool Nitriding Steel Flat Round Bar

Nitriding Steel Round Bar D 470 mm Material 1.8519 31CrMoV9 QT Forged Steel Soild Rod

Chemical Composition(%)

C

Mn

P

S

Si

V

Cr

Mo

0.27-0.34

0.40-0.70

≤ 0.025

≤ 0.035

≤ 0.4

0.1-0.2

2.3-2.7

0.15-0.25

Physical PropertyDensity ,g/cm3: 7.85Specific heat capacity, J/(kg.K):460Thermal conductivity ,W/(m.K):42Electric resistivity,Ohm.mm2 /m:0.19Modulus of elasticity ,Gpa: 210Mechanical Property

Diameter d mm

16-40

40-100

100-160

160-250

Yield Strength Mpa

≥900

≥800

≥700

≥650

Tensile Strength Mpa

1100-1300

1000-1200

900-1100

850-1050

Elongation, %

≥9

≥10

≥11

≥12

impact,J

≥25

≥30

≥35

≥40

Hardness,HB

331-380

298-359

271-331

253-319

Hold time,h

Hardness,HV

30

750

540

430

410

400

380

380

90

830

750

640

530

430

410

410

120

790

730

660

600

540

460

400

180

800

760

Physical Property
Density ,g/cm3: 7.85
Specific heat capacity, J/(kg.K):460
Thermal conductivity ,W/(m.K):42
Electric resistivity,Ohm.mm2 /m:0.19
Modulus of elasticity ,Gpa: 210
Mechanical Property