Powder Metallurgy Parts, Mechanical Seal, Sintered Gear -----Ningbo Rock Metal Product Co., Ltd.

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Powder Metallurgy Parts (Sintered Metal Parts)
Multi-level powdered metal components on iron, stainless and copper base. Major products include automobile and motorcycles parts, structure components, hand tool machine parts, food machine parts, office machine parts, sewing machine parts, farming machine and stainless parts, oil pumps parts, rotors, gears, oil impregnated bearing, various lock ware and other hardware supplies.
Our sinter metal operations consistently provide it's customers with aggressive pricing, superior design and engineering, excellent quality and unparalleled service and delivery.
Advantages:
Low-cost
Close Tolerances
Complex multi-level design
High strength
Custom metallurgical properties
Minima scrap


Shock Absorber Parts	Structure Parts	Gears (bevel, camshaft)

Pulleys	Oil Pump Rotor Parts	Hardware Parts, Office Parts

Sewing Machine Parts	Transmission Parts	Power Tool Parts

Brass Parts	Stainless Parts

Typical Sintered Material
<Table: I>
Type		Bronze	Brass	Fe	Fe-Cu	Fe-C	Fe-Cu-C		Fe-Cu-Ni-C			Cu Infiltrate
Comparative Specifications (std)		MPIF CT-1000	MPIF CZP-2002	MPIF F-0000	MPIF FC-0200	MPIF F-0008	MPIF FC-0205	MPIF FC-0205 -80HT	MPIF FD-0205	MPIF FD- 0205 -105HT	MPIF FD-0405	MPIF FX-1008
DIN CODE		SINT A50	-	SINT D00	SINT B10	SINT C01	SINT C11	SINT C11 HT	SINT D39	SINT D39HT	SINT D30	-
JIS CODE		SBK 1218	-	SMF 1015	SBF 2118	SMF 3030	SMF 4040	SMF 4040HT	SMF 5030	SMF 5030HT	SMF 5040	-
Application	Machine parts	-
Application	Oil impregnated Bearings		-	-		-	-	-	-	-	-	-
Chemical Composition (%)	Fe	-	-	bal	bal	bal	bal	bal	bal	bal	bal	Bal
	C	-	-	-	-	0.4~0.8	0.3~0.6	0.4~1.0	0.3~0.6	0.4~1.0	0.3~0.6	0.3~0.8
	Cu	bal	77~88	-	2.0	-	1~3	1~3	1~2.5	1~2.5	1~2.5	8~14.9
	Sn	8~11	-	-	-	-	-	-	-	-	-	-
	Ni	-	-	-	-	-	-	-	1~5	1~5	2~8	-
	Pb	-	1~2	-	-	-	-	-	Mo0.5	Mo0.5	Mo0.5	-
	Zn	-	bal	-	-	-	-	-	-	-	-	-
	Others	< 1.0	< 1.0	< 1.0	< 1.0	< 1.0	< 1.0	< 1.0	< 1.0	< 1.0	< 1.0	< 4.0
Physical Mechanical Properties	Density (g/cm3)	6.4~6.8	7.6~8.0	6.8 Min	5.6~6.4	6.6	6.8	6.8	6.8	6.8	6.8 Min	7.2 Min
	Oil Content (VOL. %)	18 Min	-	-	18 Min	-	-	-	-	-	-	-
	Ultimate Tensile Strength (kg/mm2)	8	15	20	15	30	50	60	40	80	40	60
	Elongation (%)	2	10	5	1.0	0.5	1.0	0.2	1.0	0.3	1.0	2.0
	Radial Crushing Strength (kg/mm2)	15 Min	-	-	20 Min	-	-	-	-	-	-	-
	Hardness	RH30~70	RH75	RB20	RH30~70	RB40	RB40	MHV450 Min	RB60	MHV450 Min	RB70	RB80

Table: II (Stainless)>

Type

Chemical Composition (%)

Physical Mechanical Properties

Tin

Other

Density
(g/cm3)

Ultimate Tensile Strength (kg/mm2)

Elong-ation
(%)

Hard-ness

SUS303L

bal

18.2

12.5

2.0

1.0

0.8

0.13

< 0.08

0.20

< 1.0

> 6.3

20 Min.

Min.2.0

RB40

SUS316L

bal

17.0

13.5

2.0

1.0

0.75

0.12

2.2

< 0.08

0.01

< 1.0

> 6.3

25 Min.

Min.5.0

RB38

SUS410L

bal

12.7

0.8

0.18

< 0.08

0.01

< 1.0

> 6.3

20 Min.

Min.2.0

RB80

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