AMS 6478 AMS 6532 Aermet 100 A100 Martensitic Alloy Bar for Aircraft Landing Gear

• Customization: Available
• After-sales Service: Support
• Warranty: Lifetime Warranty
• Model NO.: AMS 6532
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Forged/Hot Rolled/Cold Drawn
• Application: Structural Steel Bar, Tool Steel Bar
• Surface Treatment: Polished
• Alloy: Alloy
• Special Use: Free Cutting Steel, Cold Heading Steel
• Certificate: ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
• Quality Inspection: Ut, Chemical Composition, Physical Properties/SGS
• Siz: Dia. 10-1500mm, Length: 3000-6000mm
• Heat Treatment: Quenched, Tempered, Annealed
• Surface Require: Black, Grinding, Bright, Polish
• Delivery Condition: Hot Rolled, Forged, Eaf+Lf+Vd
• Transport Package: Seaworthy Packing/Wooden Box or at Client′s Requir
• Specification: Customized
• Trademark: OEM & ODM
• Origin: China
• HS Code: 722100000
• Production Capacity: 1000 Ton/Month

Product Description

Product Description

AerMet® 100 is an ultra-high strength type of martensitic (a very hard form of steel crystalline structure) steel alloy.

Is was developed in response to a need for a stronger and tougher material with superior fracture toughness and ductility. The alloy possesses a minimum tensile strength of 280 ksi (1930 MPa) and a minimum fracture toughness of 100 Ksi/in. AerMet is weldable requiring no preheating. Since it is not a corrosion resistant alloy, it must be sealed if used in a moist environment. The exceptional properties of hardness, FTT, tensile strength and ductility make this alloy a candidate for application such as landing gear, armor, fasteners, actuators, ordnance, jet engine shafts, drive shafts and structural tubing. AerMet 100 may be considered for use up to about 800° F (427° C).

 

Chemical Composition:

Element	min	max
Carbon	0.21	0.25
Manganese	-	0.10
Silicon	-	0.15
Phosphorus	-	0.008
Sulfur	-	0.005
Chromium	2.90	3.30
Cobalt	13.00	14.00
Molybdenum	1.10	1.30
Titanium	-	0.015
Aluminum	-	0.015
Oxygen	-	0.0020 (20 ppm)
Nitrogen	-	0.0015 (15 ppm)
Nickel	11.00	12.00
Iron	-	*Balance

Fabrication and Working Instructions:

AerMet 100 can be difficult to machine at HRC 38. In order to mitigate that, carbide tools are recommended at 280 to 350 SFM. After the machining process, stress relieve at 800°F (427°C) is recommended for 1-3 hours.

Forging, on the other hand, should start at a temperature of 2250°F (1232°C) for first break down. Then, the part should be finished starting with a temperature of 1800°F (982°C) and down to 1650° F (899°C) for optimization. After the forging is finished, Steel AerMet 100 should be air cooled to room temperature, followed by annealing and normalizing in order to restore properties to the dead zone.

AerMet 100 is weldable without preheating required.

Typical mechanical properties on longitudinal orientation with heat treatment at 1625°F (885°C), one-hour air cooling to achieve -100°F (-73°C) of the previous temperature, and then aging for 5 hours at 900°F (482°C) are listed in the table below:

Rc	UTS	Elongation	Reduction of Area	Charpy V-notch Impact Energy	FTT K
53.0/54.0	285 ksi	14%	65%	30 ft-lbs / 40.67 Nm	115 Ksi√ in

Mechanical Properties (Longitudinal)

Property	Value
Tensile Strength	290 ksi
Yield Strength at 0.2% Offset	245 ksi
Elongation in 4D	10%
Reduction of Area	50%

Mechanical Properties (Transverse)

Property	Value
Tensile Strength	290 ksi
Yield Strength at 0.2% Offset	245 ksi
Elongation in 4D	8%
Reduction of Area	35%

Physical Properties

Property	Value
Density	0.285 lb /in^3
Modulus of Elasticity	28.2 x 10^3 ksi
Electrical Resistivity	259.0 ohm-cir-mil/ft at 70.0°F (21°C)
Critical Temperature	AC1 - 1065°F (573°C)
	AC3 - 1525°F (830°C)
Mean Co of Thermal Expansion	Annealed - 6.01 x 10-6 in/in/°F
	Heat treated - 6.08 x 10-6 in/in/°F

Mechanical and Physical Properties at a Given Temperature

Properties	70°F (21.1°C)	200°F (93.3°C)	300°F (148.9°C)	400°F (204.4°C)	600°F (316.5°C)	700°F (371.1°C)	800°F (426.7°C)	1000°F (537.8°C)
Ultimate Tensile Strength	-	285 ksi	270 ksi	260 ksi	248 ksi	237 ksi	229 ksi	-
Yield Strength at 0.2% Offset	-	250 ksi	240 ksi	230 ksi	218 ksi	200 ksi	192 ksi	-
Reduction of area	-	55%	62%	64%	63%	61%	60%	-
Elongation	-	14%	16%	16%	16%	15%	15%	-
Charpy V-notch Impact Energy	-	50 ft-lb	52.3 ft-lb	50 ft-lb	33.2 ft-lb	28 ft-lb	27.2 ft-lb	-
Modulus of Elasticity	28.2 x 103 ksi	-	-	-	-	-	-	-

Specification

Size	Round	Dia 6-1200mm
	Plate/Flat/Block	Thickness 6mm-500mm
		Width 20mm-1000mm
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; CNF
Delivery time	20-25 days
Application	Structural parts of medium and large cross sections and high surface hardness, e.g., valve and gate valves, cylinders for combustion engines, superheated steam valves and fittings.

 

Quality Assurance
Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT; 
(5) eddy current flaw detection-ET
 

Mill′s test certificate
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.

 

Main Material

 

COLD WORK TOOL STEEL
Grade	AISI  /ASTM	DIN (W.Nr)	JIS	EN/ BS	GB
DC53	higher than D2		SKD11	XW-5	Cr8Mo2Vsi
D2	D2	1.2379	SKD11	BD2	CR12MO1V1
Cr12MoV					CR12MOV
D3	D3	1.2080	SKD1	BD3	CR12
O1	O1	1.2510	SKS3		9CRWMN
HMD5		HMD5			7CrSiMnMoV
5CrNiMo	L6	55NiCrMoV6	SKT4		5CrNiMo
52100	52100	1.3505		EN31	GCR15
HOT WORK TOOL STEEL
H13	H13	1.2344/1.2342	SKD61/DAC	8407	4CR5MOSIV1
FDAC		1.2347	FDAC		FDAC
H11	H11	1.2343	SKD6		H11
3Cr2W8V	H21	1.2581/ X30WCrV93	SKD5	BH21	3CR2W8V
PLASTIC MOULD STEEL
P20	P20	1.2311	HPM7/PX88	618	3CR2MO
718	P20+NI	1.2738	PX4/PX5	718	3CR2NIMO
S136	420	1.2083	S-STAR	S136	4CR13
NAK80	P21 /P20+S	1.2312	NAK80		15NI3MN
HIGH SPEED STEEL
M2	M2		SKH51		W6MO5CR4V2
M42	M42	S2-10-1-8	SKH59		W2MO9CR4VCO8
ALLOY STRUCTURE STEEL
Grade	AISI  /ASTM	DIN (W.Nr)	JIS	EN/ BS	GB
5120	5120	1.7027 /21Cr4	SCr420		20Cr
530M40 /5140	530M40 /5140	1.7035 /41Cr4	SCr440		40Cr
5145	5145		Scr445		45CR4
4118	4118	1.7243 /18CrMo4	SCM418 / SCM420		20CrMo
4135	4130	1.7218 /25CrMo4	SCM430	708A25/ 708M25	30CrMo
4140	4140	1.7225 /42CrMo4	SCM440	EN19/ 709M40	42CrMo
4340	4340	1.6582/ 34CrNiMo6	SNCM 439/ SNCM8	EN24/ 817M40	40CrNi2Mo
8620	8620	1.6523/ 21NiCrMo2	SNCM220	805M20	20CrNiMo
CARBON STEEL
20	1020	C22. CK22	S20C	EN3B /070M20	20
35	1035	C35.CK35	S35C		35
45	1045	C45.CK45	S45C	EN8D/C45E	45
50	1050	CK53	S50C	EN9/070M55	50
Q355		S355J   /ST52		EN14	Q355
30Mn	1030.1033		S30C		30Mn
30Mn2	1330	30Mn5	SMn433h		30Mn2
STAINLESS STEEL
steel grades: 304, 304L, 316, 316L, 321, 410 430, 431, 2205, 2304, 2507. F53, F55

 

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