Chemical Composition Limits Weight% C P Si Ni Cu Cb + Ta Mn S Cr Mo Ti Fe Alloy 455 0.05 max 0.040 max 0.50 max 7.5-9.5 1.5-2.5 0.10-0.50 0.50 max 0.030 max 11.0-12.5 0.50 max 0.80-1.4 Bal

Typical Mechanical Properties Material Condition 0.2 % Yield Strength (Mpa) Ultimate Tensile Strength (Mpa) Notch Tensile Strength % Elongation in 4D % Reduction of Area Rockwell C Hardness Charpy V Notch Impact Strength (ft-lbs) Alloy 455 Bar 1″ Section Custom 455® A 793 1000 1585 14 60 31 70 Alloy 455 Bar 1″ Section Custom 455® H900 1689 1724 1792 10 45 49 9 Alloy 455 Bar 1″ Section Custom 455® H950 1551 1620 2068 12 50 48 14 Alloy 455 Bar 1″ Section Custom 455® H1000 1379 1448 2000 14 55 45 20 Alloy 455 Bar 1″ Section Custom 455® H1050 1207 1310 1793 15 55 40 35

Applications: Aerospace springs Fasteners Precision components

Chemical Composition Limits Weight% C P Si Ni Cu Cb + Ta Mn S Cr Mo Ti Fe Alloy 455 0.05 max 0.040 max 0.50 max 7.5-9.5 1.5-2.5 0.10-0.50 0.50 max 0.030 max 11.0-12.5 0.50 max 0.80-1.4 Bal

Typical Mechanical Properties Material Condition 0.2 % Yield Strength (Mpa) Ultimate Tensile Strength (Mpa) Notch Tensile Strength % Elongation in 4D % Reduction of Area Rockwell C Hardness Charpy V Notch Impact Strength (ft-lbs) Alloy 455 Bar 1″ Section Custom 455® A 793 1000 1585 14 60 31 70 Alloy 455 Bar 1″ Section Custom 455® H900 1689 1724 1792 10 45 49 9 Alloy 455 Bar 1″ Section Custom 455® H950 1551 1620 2068 12 50 48 14 Alloy 455 Bar 1″ Section Custom 455® H1000 1379 1448 2000 14 55 45 20 Alloy 455 Bar 1″ Section Custom 455® H1050 1207 1310 1793 15 55 40 35

Applications: Aerospace springs Fasteners Precision components

Alloy 455/ Stainless Steel 455

Grade: Alloy 455/ Stainless Steel 455/UNS 45500

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

Alloy 455 is a martensitic age hardenable stainless steel, which has properties of high strength and good corrosion resistance. Alloy 455 is relatively soft and formable in the annealed condition, however through a single-stage aging treatment alloy 455 develops an exceptionally high yield strength with good ductility and toughness.

Chemical Composition Limits

Weight%

Cb + Ta

Alloy 455

0.05 max

0.040 max

0.50 max

7.5-9.5

1.5-2.5

0.10-0.50

0.50 max

0.030 max

11.0-12.5

0.50 max

0.80-1.4

Bal

Typical Mechanical Properties

Material	Condition	0.2 % Yield Strength (Mpa)	Ultimate Tensile Strength (Mpa)	Notch Tensile Strength	% Elongation in 4D	% Reduction of Area	Rockwell C Hardness	Charpy V Notch Impact Strength (ft-lbs)
Alloy 455 Bar 1″ Section Custom 455®	A	793	1000	1585	14	60	31	70
Alloy 455 Bar 1″ Section Custom 455®	H900	1689	1724	1792	10	45	49	9
Alloy 455 Bar 1″ Section Custom 455®	H950	1551	1620	2068	12	50	48	14
Alloy 455 Bar 1″ Section Custom 455®	H1000	1379	1448	2000	14	55	45	20
Alloy 455 Bar 1″ Section Custom 455®	H1050	1207	1310	1793	15	55	40	35

Applications:

Aerospace springs
Fasteners
Precision components

Introduction

Specification

Chemical Composition Limits

Weight%

Cb + Ta

Alloy 455

0.05 max

0.040 max

0.50 max

7.5-9.5

1.5-2.5

0.10-0.50

0.50 max

0.030 max

11.0-12.5

0.50 max

0.80-1.4

Bal

Mechanical

Typical Mechanical Properties

Material	Condition	0.2 % Yield Strength (Mpa)	Ultimate Tensile Strength (Mpa)	Notch Tensile Strength	% Elongation in 4D	% Reduction of Area	Rockwell C Hardness	Charpy V Notch Impact Strength (ft-lbs)
Alloy 455 Bar 1″ Section Custom 455®	A	793	1000	1585	14	60	31	70
Alloy 455 Bar 1″ Section Custom 455®	H900	1689	1724	1792	10	45	49	9
Alloy 455 Bar 1″ Section Custom 455®	H950	1551	1620	2068	12	50	48	14
Alloy 455 Bar 1″ Section Custom 455®	H1000	1379	1448	2000	14	55	45	20
Alloy 455 Bar 1″ Section Custom 455®	H1050	1207	1310	1793	15	55	40	35