1.2365

Update：2018/7/21 17:56:13 View：3854

Type： 1.2365
Description：
1.2365

Introduction

1.2365 / H10 Hot Work Tool Steel

Equivalence

AISI / SAE	DIN / W.Nr	JIS	GB
H10	1.2365	SKD7	----

Chemical Composition (%)

Steel Grade	C	Si	Mn	P	S	Cr	Mo	V
1.2365	0.28 0.35	0.10 0.40	0.15 0.45	≤ 0.030	≤ 0.030	2.70 3.20	2.50 3.00	0.40 0.70
H10	0.35 0.45	0.80 1.20	0.25 0.70	≤ 0.030	≤ 0.030	3.00 3.75	2.00 3.00	0.25 0.75

Dimensions

Shape	Thick / Dia. (mm)	Width (mm)
Round	8-600	/
Flat	6-200	20-910
Block	150-500	200-1500

Delivery Condition

EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, EFS, Hardness≤235HB, Un-machined or

Machined surface (Peeled, Turned, Milled, Grinded), UT 100% Passed

Characteristics

Hot work tool steel featuring a fine combination of heat checking resistance, hot strength and impact strength; admits water cooling.

Applications

1. Highly stressed hot work tools, mainly for the processing of heavy alloys, such as mandrels, dies

and containers for metal tube and rod extrusion; hot extrusion tools;

2. Tools for the manufacture of hollows, screws, rivets, nuts and bolts.

3. Die casting tools, forming dies, die inserts, hot shear blades.

Heat Treatment

Annealing

750 to 800°C (1382 to 1472°F)

Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (50 to 68°F/hr) down to approx. 600°C (1112°F), further cooling in air. Hardness after annealing: max. 235 HB.

Stress relieving

600 to 650°C (1112 to 1202°F)

Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1 - 2 hours.

Hardening

1010 to 1050°C (1850 to 1922°F)

Oil, salt bath (500 - 550°C / 932-1022°F), air

Holding time after temperature equalization: 15 to 30 minutes.

Obtainable hardness: 52 - 56 HRC

Tempering

Slow heating to tempering temperature immediately after hardening / time in furnace 1 hour for each 20 mm of work piece thickness, but at least 2 hours / cooling in air. It is recommended to temper at least twice. A third tempering cycle for the purpose of stress relieving may be advantageous.

1st tempering approx. 30°C (86°F) above maximum secondary hardness.

2nd tempering to desired working hardness. The tempering chart shows average tempered hardness values.

3rd for stress relieving at a temperature 30 - 50°C (86 to 122°F) be low highest tempering temperature.

Steel Grades We Can offer

	AISI	DIN	JIS	Stock	Application
Hot Work Tool Steel	H11	1.2343	SKD6	√	Die Casting Dies,Extrusion Dies, Hammer Dies, Ram Dies, Forging Dies etc.
	H13	1.2344	SKD61	√
	H10	1.2365	SKD7
	——	1.2367	——
	L6	1.2714 / 1.2713	SKT4	√
	H12	1.2606	SKD62
	H21	1.2581	SKD5	√
Cold Work Tool Steel	D3	1.2080	SKD1	√	Cutting Tools, Punching Tools, Shear Bladers, Reamers, Thread Rolling Dies, Calipers, Sockets etc.
	——	1.2601	~SKD11	√
	D2	1.2379	~SKD11	√
	——	1.2379 MOD	DC53 (Daido)	√
	D6	1.2436	——
	O1	1.2510	SKS3	√
	O2	1.2842	——
	A2	1.2363	SKD12
	S1	1.2550	——
	S7	1.2357	——
	——	1.2767	SKT6
	L2	1.2210	——
Plastic Mould Steel	P20	1.2311	——	√	Mold Base, Core & Cavity, Bumper Mold etc.
	P20+Ni	1.2738	——	√
	P20+S	1.2312	——	√
	——	1.2316	——
	420	1.2083	SUS420J2	√
	——	——	NAK80 (Daido)	√
Alloy Steel	4120	25CrMo4 / 1.7218	SCM420		Shafts, Gears, Drillers, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Crankshafts, Connecting Rods, Came, Couplings etc.
	4135	34CrMo4 / 1.7220	SCM435
	4130	34CrMo4 / 1.7220	SCM430	√
	4140	42CrMo4 / 42CrMoS4 / 1.7225	SCM440	√
	4142	41CrMo4 / 1.7223	SCM440
	4145H	——	——
	4330V	——	——
	4340	34CrNiMo6 / 1.6582	SNCM439
	5115	16MnCr5 / 16MnCrS5 / 1.7131
	5120	20MnCr5 / 20MnCrS5 / 1.7147	SMnC420H
	5140	41Cr4 / 41CrS4 / 1.7035	SCr440	√
	8620	21NiCrMo2 / 1.6523	SNCM220
	8640	40NiCrMo2-2 / 1.6546	SNCM240
	——	18CrNiMo7-6 / 17CrNiMo6 / 1.6587	——
	9840	36CrNiMo4 / 1.6511	——
	E71400	41CrAlMo7-10 / 1.8509	SACM1
	——	34CrAlNi7 / 1.8550	——
Bearing Steel	E52100	100Cr6 / 1.3505	SUJ2	√	Bearing, Shafts etc.
	——	100CrMn6 / 1.3520	——
	——	100CrMo7-3 / 1.3536	——
Spring Steel	5155	55Cr3 / 1.7176	SUP9		Springs
	6150	51CrV4 / 1.8159	SUP10
	9261	60CrSi7 / 1.7108	——
Carbon Steel	1010	CK10 / C10E / 1.1121	S10C		Shafts, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Came, Couplings etc.
	1020	C22 / 1.0402	S20C	√
	1040	CK40 / C40E / 1.1186	S40C	√
	1045	CK45 / C45E / 1.1191	S45C	√
	1050	CK50 / C50E / 1.1206	S50C	√
	1055	CK55 / C55E / 1.1203	S55C
	1064	CK60 / C60E / 1.1221	S58C
High Speed Tool Steel	M2	1.3343	SKH51	√	Reamer, End-mill, Hob, Cutter, Bite, Drill, Punch, Tap, Brooch etc.
	M7	1.3348	——
	M42	1.3247	SKH59	√
	M35	1.3243	SKH55	√
	T1	1.3355	SKH2
	T15	1.3202	——
	T42	1.3207	SKH57

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