253mA/S30815/1.4835/X9crnisince21-11-2, Seamless Stainless Steel Tube, Round, Heat Exchanger Tube, Hydraulic, Tubular

• Customization: Available
• Type: Seamless
• Technique: Cold Rolled
• Material: Stainless Steel
• Surface Treatment: Pickling and Annealing
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Transport Package: Knitting Strips, Plywood Case
• Specification: OD: 1/2"--40", WT: 10S--XXS
• Trademark: XTD
• Origin: China
• HS Code: 7304419000
• Production Capacity: 15000 Tons/Year

Product Description

Detailed Photos

 

Product Description

Material Summary

Despite its lean nickel content, 253 MA offers an outstanding combination of creep strength and high resistance to oxidation, sulphidation and erosion/abrasion at extremely high temperatures. This makes the alloy more economical than most heat resistant alloys.
The high heat resistant properties of 253 MA are obtained by the tight control of micro alloy additions. Whilst the benefit of creep rupture strength is down to the combination of nitrogen, carbon and cerium, its superior oxidation resistance is a result of the combination of cerium and silicon.
Its strength at these temperatures is higher than that of alternatives such as Grade 310.

Chemical Composition

Cr	Ni	C	Si	Mn	P	S	N	Ce	Fe
20.0-22.0	10.0-12.0	0.05-0.10	1.40-2.00	≤0.08	≤0.04	≤0.03	0.14-0.20	0.03-0.08	Balance

Mechanical Properties

Grade	Tensile Strength ksi(MPa)	Yield Strength ksi(MPa)	Elongation in 2", %	Hardness Brinell	Hardness Rockwell
253SMA	≥87(600)	≥45(310)	≥40	≤217HBW	≤95HRB

 

Product application

Application

• Pyrolysis Vessels
• Boiler Nozzles
• Corrugated Boxes
• Cyclones
• Bar Baskets
• Radiant Tubes
• Combustion chambers

 

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