AISI O2 DIN 1.2842 Cold Work Tool Steel Round Bar

FOB Price: US $1500.001 - 20 metric ton

group name: Steel Forgings

Min Order: 1 metric ton

brand name: fushun

model: O2 1.2842

Nearest port for product export: Tianjin, Qingdao, Shanghai, Huangshi

Delivery clauses under the trade mode: FOB, CFR, CIF, CIP, CPT, DDP, DDU, DAF

Acceptable payment methods: T/T, L/C, D/P D/A

update time: Tue, 12 May 2020 15:46:16 GMT

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Paramtents

Round bar 8mm-350mm
Flat bar thickness 2mm –300mm x width 200mm – 800mm
Surface Finish Black, Rough Machined, Turned or as per given requirements.

Packging & Delivery

Min Order1 metric ton

Briefing

Tool steel O2 is with excellent wear resistance and its ability to hold a good cutting edge.

Detailed

Applications for ASTM A681 O2 Tool Steel

Steel O2 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.

Contact us for any request of O2 tool steel materials. We will be a better choice.

Standard

ASTM A681 Standard Specification for Tool Steel Alloy

1. Relevant Steel Specification of AISI O2 Tool Steel

USA	German	British	China
ASTM A681	DIN EN ISO 4957	BS 4659	GB/T 1299
O2 / T31502	1.2842 / 90MnCrV8	B02	9Mn2V

2. AISI O2 Tool Steel Chemical Composition & Other Equivalents

ASTM A681	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
DIN ISO 4957	C		Mn		P	S	Si		Cr		V		Mo
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	. . .	. . .
BS 4659	C		Mn		P	S	Si		Cr		V		Mo
B02	0.85	0.95	1.50	1.80	0.035	0.035	. . .	0.40	. . .	. . .	. . .	0.25	. . .	. . .
GB/T 1299	C		Mn		P	S	Si		Cr		V		Mo
9Mn2V	0.85	0.95	1.70	2.00	0.03	0.03	. . .	0.40	. . .	. . .	0.10	0.25	. . .	. . .

3. ASTM O2 Tool Steel Material Mechanical Properties

Forging of ASTM O2 Tool Steel

Heat O2 steel to 1000°C. Forge it within a range of 850-1050°C reheating if necessary. Cool slowly to avoid setting up stresses

5. 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 HRC

Hardness after tempering :

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