Stainless Steel Grade Custom 455
Custom 455 stainless represents a significant advancement in the area of precipitation hardening stainless steels. It should be considered where simplicity of heat treatment, ease of fabrication, high strength and corrosion resistance are required in combination.
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Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of stainless steel grade custom 455 in China. With abundant experience, we warmly welcome you to wholesale customized stainless steel grade custom 455 from our factory. For price consultation, contact us.
Products Description
The high-strength alloys Custom 455 with good corrosion resistance to atmospheric environments, and a martensitic age-hardenable stainless steel. This alloy is relatively soft and formable in the annealed condition. Asingle-step aging treatment develops exception-alloy high yield strength with good ductility and toughness.Custome 455 stainless resists staining in normal air atmospheres, and shows no corrosion in fresh water. Test in 5% salt spray at 95 °F(35 °C) and in 5% ferric chloride at room temperature have demonstrated good resistance to pitting and rusting. Laboratory test s in a variety of mild chemical environments have shown that the level of general corrosion resistance is superior to that of the 12% chromium steels (Type 430). In most tests there was no significant effect of aging temperature on corrosion resistance. Hydrogen embrittlement tests in 5% acetic acid saturated with sulfuric hydrogen at room temperature show the same degree of susceptibility as other high-strength martensitic stainless steels. All high-strength steels are subject to stress corrosion under certain stress conditions and in certain environments.
Products properties
| 455 stainless steel 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 |
| 455 SS PHYSICAL PROPERTIES | ||||||
|---|---|---|---|---|---|---|
| Density | Electrical conductivity (% IACS) | Thermal conductivity (BTU-in/hr-ft²-°F) | Specific heat capacity | Thermal expansion (1/°F) | Melting Point (°F) | |
| 0.282 | 1.9 | 125 | 0.11 | 0.00000590 | – | |
| Custom 455 MECHANICAL PROPERTIES | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| PROPERTY | MINIMUM | MAXIMUM | |||||||
| Yield Strength Range (Rp0.2 Offset) (ksi) | 115 | 195 | |||||||
| Tensile Strength Range (Rm) (ksi) | 145 | 250 | |||||||
| Elongation (AL=5 x Ø) | 10.0% | 14.0% | |||||||
| Brinell Hardness (H) | 297 | 472 | |||||||
| Modulus of Elasticity (ksi) (E): 29000 | |||||||||
| Machineability General Index: 28% | |||||||||
Numerous severe tests have been conducted to evaluate the behavior of Custom 455 stainless in different environments, and to determine the effect of aging temperature on resistance to stress -corrosion cracking. These tests include U-bend specimens, direct tension specimens, C-rings and precracked cantilever beam specimens. Environments have included marine atmospheres, 20% salt spray, and 3-1/2% sodium chloride solutions. All tests have shown that Custom 455 stainless has inherently good resistance to stress-corrosion cracking, and that this resistance improves markedly as aging temperature is increased. For optimum corrosion resistance, surfaces must be free of scale and foreign particles and finished parts should be passivated.
customer case
FAQ
Q:what is your delivery time ?
A: Our delivery time is about one week, timing according to the number of customers.
Q: How long is your delivery time?
A: It is according to quantity. Generally it is 30 days.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 50% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.or negotiable
Q: What are the advantages of your company ?
A: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
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