400series 2B cold rolled stainless steel coil

Prix FOB

Obtenir le dernier prix

1400 ~ 1600 / Metric Ton ( Negotiable )

20 Metric Ton Minimum Order

Pays:

China

N Â° de modÃ¨le:

Prix FOB:

1400 ~ 1600 / Metric Ton ( Negotiable )(Negotiable) Obtenir le dernier prix

LocalitÃ©:

China TISCO

Prix de commande minimale:

1400 per Metric Ton

Commande minimale:

20 Metric Ton

Packaging Detail:

As mill's waterproof packages

Heure de livraison:

30days or 45 days basis your quantity

Capacité de Fournir:

10000 Metric Ton per Month

Payment Type:

T/T, L/C

Groupe de produits :

stainless steel coil

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Shanxi Devotion Special Metal Technology Co., Ltd

China

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Taiyuan Stainless Steel Eco-industrial Park,No.1,Fengyuan Road West,Bdistrict, Taiyuan, Shanxi

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SpÃ©cification du produit

Weight:10t

La description

GENERAL PROPERTIES

Types 410, 420, 425 Modified, and

440A (see composition on Page 2) are hardenable, straight-chromium stainless steels which combine superior wear resistance of high carbon alloys with the excellent corrosion resistance of chromium stainless steels. Oil quenching these alloys from temperatures between 1800°F to 1950°F (982-1066°C) produces the highest strength and/or wear resistance as well as corrosion resistance. A range of as-quenched hardnesses is achieved in these alloys by varying the carbon level from .15% maximum in Type 410 to .60-

.75% in Type 440A.

These alloys are used where strength, hardness, and/ or wear resistance must be combined with corrosion resistance.

APPLICATIONS

A major use for these grades of heat treatable stain-less steels is in cutlery. Depending on the customer's end-use requirements, cutlery alloys are usually selected with respect to heat treating response, mechanical properties and fabricating characteristics.

When sufficient amounts of carbon are added to straight- chromium stainless steels, the alloy then has the capability to transform its microstructure through proper heat treatment (hardening) into one that will possess optimum strength, hardness, edge retention, and wear resistance. The presence of sufficient chromium will impart the necessary corrosion resis-tance and form chromium carbide particles that enhance the wear resistance of the given alloy. The higher the carbon content, the greater the amount of

chromium carbide particles, and the greater the strength and hardness for heat treatable straight-chromium stainless steels.

When blanking cutlery parts from annealed raw material stock, Types 410, 420, and their higher carbon versions (Types 410HC and 420HC) will usually exhibit hardness, yield strength, and tensile strength that are low enough for fine blanking pur-poses. However, Type 440A is not readily amenable to fine blanking due to its higher strength and hardness in the annealed condition; and therefore, could require more powerful presses to blank parts. In addition, the presence of large primary carbides in Type 440A would tend to reduce die life.

When buffing blanked parts, the higher hardness of Type 440A in the heat treated condition (hardened) would mean less residual buffing lines on the surfaces of parts but the large primary carbides could be dislodged during buffing which would produce scratches called comet-tails. Stainless steels lower in carbon content are essentially free of "comet-tails".

Other applications for these grades include dental and surgical instruments, nozzles, valve parts, hardened steel balls and seats for oil well pumps, separating screens and strainers, springs, shears, and wear surfaces.

PRODUCT FORM

These alloys are available as plate, sheet, strip and flat bars.

CHEMICAL COMPOSITION

Stainless				Element in Weight Percent
Steels	Carbon	Manganese	Silicon	Chromium	Molybdenum	Nickel	Sulfur	Phosphorus

Type 410*	0.15 max	1.00 max	1.00 max	11.50-13.50	--	0.50 max	0.03 max	0.04 max

Type 420**	0.15-0.40	1.00 max	1.00 max	12.00-14.00	---	0.50 max	0.03 max	0.04 max

Type 425 Mod	0.50-0.55	1.00 max	1.00 max	13.00-14.00	0.80-1.20	0.50 max	0.03 max	0.04 max

Type 440A	0.60-0.75	1.00 max	1.00 max	16.00-18.00	0.75 max	0.50 max	0.03 max	0.04 max

*A higher carbon version of Type 410 is also available called Type 410HC (nominal 0.21% C).

**A higher carbon version of Type 420 is also available called Type 420HC (nominal 0.44% C).

MECHANICAL PROPERTIES

Typical compositions, annealed mechanical properties and hardening response for the various Allegheny Ludlum martensitic stainless steels are presented below.

	Typical Composition				Typical Annealed
	(Weight Percent)				Properties			Hardening


Stainless	C	Cr	Mo		0.2% Offset	Tensile	Elongation,	Response
Stainless	C	Cr	Mo		0.2% Offset	Tensile	Elongation,	HRC
Steels				HRB	Yield Strength	Strength	Percent in	HRC
Steels

Pays:	China
N Â° de modÃ¨le:	-
Prix FOB:	1400 ~ 1600 / Metric Ton ( Negotiable ) (Negotiable) Obtenir le dernier prix
LocalitÃ©:	China TISCO
Prix de commande minimale:	1400 per Metric Ton
Commande minimale:	20 Metric Ton
Packaging Detail:	As mill's waterproof packages
Heure de livraison:	30days or 45 days basis your quantity
Capacité de Fournir:	10000 Metric Ton per Month
Payment Type:	T/T, L/C
Groupe de produits :	stainless steel coil