Hot Rolled 1.2842 9Mn2V Cold Work Alloy Tool Steel Flat Bar

• Customization: Available
• Technique: Hot Rolled
• Standard: AISI, JIS, ASTM, DIN, BS, GB
• Model NO.: O2
• Certification: IS0, RoHS, ABS
• Payment Term: 30% Tt Deposit, Balance Against Bl Copy
• Length: 3000-5800mm
• Delivery Date: 30 Days
• Ex-Stock: No
• Ut Standard: Sep 1921-84 D/D
• Grain Size: ASTM E112
• Non-Metallic Inclusiton: ASTM E45
• Form: Round Bars/ Flat Bar / Blocks/ Tube
• Process: Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
• Technology: Hot Rolled/ Forged/ Cold Drawn
• Heat Treatment: Normalized;Annealed ;Quenched ;Tempered
• Surface: Black; Peeled; Polished; Machined; Grinded; Turne
• Test: Ensile Strength, Yield Strength, Elongation
• Certificate: ISO/ Mill Certificate
• Transport Package: Seaworthy Package
• Trademark: Qilu
• Origin: China
• HS Code: 7228400000
• Production Capacity: 400, 000ton/Year

Product Description

GB 9Mn2V | DIN 1.2842 | BS B02 | ASTM O2 Cold Work Tool Steel

 

 

Quick Details

1: AISI O2 steel introduction

    AISI O2 tool steel is an oil hardening tool steel which is supplied in the annealed condition and characterised by its characteristics of offering good durability. Tool steel O2 is with excellent wear resistance and its ability to hold a good cutting edge. 02 steel is a good quality general purpose tool steel often used where the expense of a high carbon high chromium tool steel would not be justified.

 

2: AISI O2 Steel equivalent

Country	China	Japan	Germany	USA	UK
Standard	GB/T 1299	JIS G4404	DIN EN ISO4957	ASTM A681	BS 4659
Grade	9Mn2V		1.2842 / 90MnCrV8	O2	B02

3: AISI O2 steel chemical composition

Grade	C		Mn		P	S	Si		Cr		V		Mo
O2 / T31502	0.85	0.95	1.40	1.80	0.03	0.03	. . .	0.50	. . .	0.50	. . .	0.30	0.30
1.2842 / 90MnCrV8	0.85	0.95	1.80	2.20	0.03	0.03	0.10	0.40	0.20	0.50	0.05	0.20	. . .
B02	0.85	0.95	1.50	1.80	0.035	0.035	. . .	0.40	. . .	. . .	. . .	0.25	. . .
9Mn2V	0.85	0.95	1.70	2.00	0.03	0.03	. . .	0.40	. . .	. . .	0.10	0.25	. . .

4: AISI O2 steel mechanical properties

    The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

  

5: AISI O2 steel overviews

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
	Process	EAF+LF+VD+Forged+Heat treatment(optional)
Heat treatment	Normalized ; Annealed ; Quenched ; Tempered
Surface condition	Black; Peeled; Polished; Machined; Grinded; Turned; Milled
Delivery condition	Forged; Hot rolled; Cold drawn
Test	Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc.
Payment terms	T/T;L/C;/Money gram/ Paypal
Trade terms	FOB; CIF; C&F; etc..
Packing	Standard Packages, or as Customers Request
Delivery time	30-45 days
Application	AISI O2 tool steel is used as tool steel for universal use, highly stressed plastic moulds, mould inserts for high hardness and abrasive stress, blanking and stamping tools for all types cutting sheet metals up to 6 mm thickness, cold forming dies, cutting and punching tools of all types, shear blades for paper, plastic and metalworking industries, reamers, thread chasers and cutting tools, pressure pads, guide pins, taps, measuring tools, precision calipers and plug gauges, woodworking tools, plastic and rubber compression moulds, deep drawing tools, clipping.

 

6. AISI O2 Tool Steel Heat Treatment

    Annealing : 680 - 720 °C

    Hardness after annealing : Max. 220 HB

    Stress relieving : Approx. 650 °C

    Hot forming : 1050 - 850 °C

    Hardening : 790 - 820 °C

    Quenching media : Oil, Salt bath ( 220 - 250 °C ) up to 20 mm thickness

    Hardness after quenching : 63 - 65 HRCHardness after tempering :

100ºC	200ºC	300ºC	400ºC
64HRC	62HRC	57HRC	50HRC

 

 

7: Delivery condition
    For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
    For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.

    For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.

 

 

Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.



Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels,  including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.

Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.

Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.


The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.

 

Summer Ning 
 

Hunan Qilu Industrial CO., LTD

Web: qilusteel.en.made-in-china.com