Stock 1.2355/50crmov13-15 S7 Tool Steel Pipe

• Customization: Available
• After-sales Service: Lifetime Warranty
• Type: Seamless
• Model NO.: Seamless Pipe
• Material: Carbon Steel/Alloy Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Certificate: ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
• Quality Inspection: Ut, Chemical Composition, Physical Properties/SGS
• Length: 2.5-12mm or Customized
• Outside Diameter: 4-914mm or Customized
• Heat Treatment: Quenched, Tempered, Annealed
• Surface Require: Black, Grinding, Bright, Polish
• Transport Package: Seaworthy Packing/Wooden Box or at Client′s Requir
• Specification: Customized
• Trademark: OEM & ODM
• Origin: China
• HS Code: 7228400000
• Production Capacity: 1000 Ton/Month

Product Description

Product Description

  
DIN 1.2355 | ASTM S7 Hot Work Tool Steel

Quick Details

1. AISI S7 steel introduction

    AISI S7 tool steel is a shock-resistant air hardening steel. AISI S7 steel has exceptional impact properties plus the highest hardenability of shock resisting grades of tool steel. Steel S7 also possesses good softening resistance at high temperatures which gives it hot work capabilities. Since S7 steel hardens in air, it is also safe and stable in heat treatment.

    AISI S7 tools steel has an unusual combination of properties, making it suitable for an extremely wide range of tool and die work - where shock-resistance, medium hot-work properties, or ease of machining and heat-treatment are most important.

 

2. AISI S7 Steel equivalent

Country	China	Japan	Germany	USA	UK
Standard	GB/T 1299	JIS G4404	DIN EN ISO4957	ASTM A681	BS 4659
Grade			1.2355/50CrMoV13-15	S7/T41907

3. AISI S7 steel chemical composition

Grade	C		Si		Mn		P	S	Cr		V		Mo
S7/T41907	0.45	0.55	0.20	1.00	0.20	0.90	0.03	0.03	3.00	3.50	-	0.35	1.30	1.80
1.2355/ 50CrMoV13-15	0.45	0.55	0.20	0.80	0.50	0.90	0.03	0.02	3.00	3.50	0.15	0.35	1.30	1.70

4. AISI S7 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 S7 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 S7 tool steel are suitable for  hot and cold shock applications, medium hot-work dies and medium-run cold work tools dies, Bull Riveters, Concrete Breakers (Moll Points), Riveting Dies, Powder Metal Dies, Notching Dies, Dowels, Drills, Drill Plates, Hubs, Plastic Mold Dies, Cold Forming Dies, Blanking Dies, Bending Dies, engraving dies, machined cavities for plastic molding dies, die-casting dies, shear blades and Master Hobs.

 

6. AISI S7 Tool Steel Heat Treatment

Annealing

    Anneal in a protective atmosphere. Heat rapidly to 1500 to 1550°F and hold at that temperature for one and one-half hours for each inch of greatest thickness. To obtain best machining properties, cool slowly to 1000°F, and then air-cool. This annealing procedure should produce a hardness of Brinell 197 max.
Stress Relief S7 steel Material: When desirable to relieve the strains of machining, heat slowly to 1050°-1250°F, allow to equalize, then cool in air.

Hardening

    Preheat: Warm steel S7 slightly before charging into the preheat furnace 1200°-1300°F, prior to hardening.

Harden: 1750°F. Quench S7 tool steel in air if cross section is 2-1/2″ or smaller; sections 2-1/2″ to 6″ should be oil quenched to black (1000°F) followed by air cooling to 150°F. Larger cross sections of S7 steel should be oil quenched to 150°F.

    Quench: Quench in still air or dry air blast.

    Temper: Tool steel S7 is normally tempered one hour per inch of section thickness to desired heating rate of 2 hours per inch. Cool in air to room temperature between the two tempers. The tempering temperature varies according to the intended use. Suggested: For cold-working and similar applications, the recommend400°-500°F. Hot working applications: apply a tempering temperature of 900°-1000°F. Never temper at less than 400°F.
 

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.

 

Chemical Composition

ASTM	DIN	DIN	C	Si	Mn	P	S	V	Cr	Mo	Ni	Cu	W
A2	1.2363	Cr5Mo1V	0.95-1.05	≤0.5	≤1.0	≤0.030	≤0.030	0.15-0.5	4.75-5.5	0.9-1.4	0.3	0.25	-
D2	1.2379	X153CRMOV12	1.50-1.60	0.10-0.40	0.15-0.45	≤0.030	≤0.030	0.90-1.10	11.0-12.0	0.60-0.8	-	-	-
D3	1.208	X210Cr12	2.0-2.35	0.2-0.6	0.1-0.6	≤0.030	≤0.030	1.1	11.0-13.5	-	0.3	0.25	1.0
H10	1.2365	32CrMoV12-28	0.35-0.45	0.80-1.20	0.25-0.70	≤0.030	≤0.030	0.25-0.75	3.00-3.75	2.00-3.00	0.3	0.25	-
H11	1.2343	X37CrMoV5-1 |	0.38-0.43	0.8-1.0	0.2-0.4	≤0.015	≤0.015	0.4-0.6	4.75-5.25	1.2-1.4	-	-	-
H12	1.2606	X35CrWMoV5	0.30-0.40	0.80-1.25	0.2-0.6	≤0.030	≤0.030	0.2-0.5	4.75-5.5	1.1-1.6	-	-	1.0-1.7
H13	1.2344	X40CrMoV5-1	0.32-0.45	0.8-1.2	0.25-0.5	≤0.030	≤0.030	0.8-1.2	4.8-5.5	1.1-1.5	-	-	1.6-2.4
H21	1.2581	X30WCrV9-3	0.26-0.36	0.15-0.25	0.2-0.4	≤0.030	≤0.030	0.3-0.6	3-3.75	-	-	-	8.5-10
L6	1.2714	55NiCrMoV7	0.5-0.6	0.1-0.4	0.25-0.8	≤0.030	≤0.030	0.05-0.15	0.6-1.2	0.35-0.55	1.5-1.8	-	-
O2	1.2842	90MnCrV8	0.85-0.95	0.1-0.4	1.8-2.2	≤0.030	≤0.030	0.05-0.2	0.2-0.5	-	-	-	-
P20	1.2311	-	0.28-0.4	0.2-0.8	0.6-1.0	≤0.030	≤0.030	-	1.4-2.0	0.3-0.55	-	-	-
S1	1.2542	-	0.4-0.55	0.15-1.20	0.1-0.4	≤0.030	≤0.030	0.15-0.30	1.0-1.8	≤0.5	-	-	-
S7	1.2355	50CrMoV13-15	0.45-0.55	0.2-1.0	0.2-0.9	≤0.030	≤0.030	0.15-0.30	3.0-3.5	1.3-1.8	-	-	-

Main Products

 

Alloy Steel	4140,4142,42CrMo4,1.7225,SCM440,4130,SCM430,25CrMo4,1.7218,34CrNiMo6, 1.6582,4340,SNCM439,36CrNiMo4,1.6511,SACN645,1340,SMn438,SNC236,
Tool Steel	H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419, SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
Bearing Steel	GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel	9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159
Stainless Steel	321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028, 434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057

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