Lork Uns S35000/AMS 5548/ASTM A693 Alloy Steel Strip for Industrial Cutting Machines Am-350 Stainless Steel Coil

Product Description

Product Description

 

Introduction

Lork Group specializes in the supply of AM-350 Bar raw materials and processing, alloys, stainless steel, metal quality development, welcome your inquiries

Alloy 350 is a chromium-nickel-molybdenum stainless steel which can be hardnened by martensitic transformation and/or precipitation hardening. It has been used for gas turbine compressor components such as blades,discs,rotors,and shafts,and similar parts where high strength was required at room and intermediate temperatures. Depending upon the heat treatment,alloy 350 may have an austenitic structure for best formability,or a martensitic structure with strengths comparable to those of martensitic steels. The alloy normally contains about 5 to 10% delta ferrite. The corrosion resistance of alloy 350 approaches that of the chromium-nickel austenitic stainless steel

Stainless Steel AM-350 Applications
 

▪ Gas turbine compressor components such as blades, rotors and shafts.
▪ Bellows,
▪ Industrial cutting machines, tools
▪ Valves

Stainless Steel AM-350 Chemical Composition

%	Carbon	Nickel	Molybdenum	Chromium	Nitrogen	Manganese	Silicon	Sulfur
Min	0.07	4.00	2.50	16.00	0.07	0.50
Max	0.11	5.00	3.25	17.00	0.13	1.25	0.05	0.03

Stainless Steel AM-350 Mechanical Properties

	Metric	Typical
Yield Strength 0.2%, ksi	1030MPa	149000psi
Tensile Strength, ksi	1274MPa	184900psi
Elongation, %	25  min	30
Hardness RC	≥42	≥42

 

 

Stainless Steel Custom 465 Heat Treatment

Annealing

Heat to 1850/1950 °F(1010/1066 °C),cool rapidly to room temperature.

Hardening

Alloy 350 can be hardened by either sub-zero cooling and tempering (SCT) or double aging(DA). Sub-zero cooling and tempering will result in higher strength than double aging. "Conditioning" of the alloy by rapid cooling from 1710 °F (932 °C) +/-25 °F is required before the SCT treatment,and is not required, but is recommended before double aging. It is further recommended that following an anneal at 1850/1950 ° F (1010/1066 °C), alloy 350 be cooled to -100 °F (-73 °C) for at least 3 hours before hardening.

Sub-zero cooling

After conditioning at 1710 °F(932 °C) +/-25 °F (rapid cool) for 90 minutes per inch of thickness, alloy 350 is held for a minimum of 3 hours at -100 °F, then tempered at either 850 °F or 1000 °F (454 °C or 538 °C) for a minimum of 3 hours. The 850 °F temper produces the highest strengths and hardnesses,and the 1000 °F temper produces improved toughness and stress corrosion properties.

Double age

Hold for 3 hours at 1350/1400 °F(732/760 °C), air cool to room temperature; heat to 825/875 °F(440/468 ° C), hold for 2-3 hours, air cool.
 

Workability

Hot working

Alloy 350 is readily hot worked. It is worked from a maximum temperature of 2150 °F(1177 °C). The use of temperature above 2150 °F will cause an increase in the amount of ferrite. Finishing temperature should be in the range of 1700/1800 °F(927/982 °C) to prevent grain coarsening on subsequent heat treatment and promote homogenous precipitation of carbides.

Cold working

In the annealed condition, alloy 350 is essentially austenitic and has forming characteristics similar to those of the AISI 300 series stainless steels. It has a higher rate of work hardening and cold forming will cause martensite formation in proportion to the amount of deformation. If capacity is limited or deformation is severe, heating the material to 300 °F(149 °C) or above will minimize work hardening. In the hardened condition, alloy 350 has sufficient ductility for limited forming or straightening operations .

Machining

Succesfully maching alloy 350 requires the same pratices used for other stainless steels, such as rigid tool and work suports, slower speeds, positive cuts, absence of dwelling or glazing, and adequate coolant. In the annealed condition, the alloy is soft and gummy and has a high work-hardening rate. Machining alloy 350 in the annealed condition is consequently not recommended. Best machinability is obtained in the equalized and overtempered condition. Finishing operations may be performed in this condition if proper allowances are made for growth during subsequent hardening treatments. If extreme dimensional accuracy is necessary, finish machining should be done in the hardened condition.

Available Sizes And Specifications

AM-350 stainless steel profile sizes and specifications
Grade	AM-350
Cold rolled stainless steel coil	Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm, Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel coil	Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mm Surface: No.1/pickling
Standard	ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,   BS 1449, DN17441, G4305

 

Surface Treatment

 

Detection

Processing

 

Packaging & Shipping

Company Profile

FAQ

Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .

Q2: Can I have free sample before making orders?

A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.

Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .

Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .

Q5: How can I quickly get the price list ?
A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .