AISI431 stainless steel

AISI431 is the material of stainless steel AISI are the standard of the American iron and steel institute.

Hardness and heat treatment specification of grade AISI431

Annealing hardness HBS	Cold pull hardness HBS	Preheating temperature ℃	Quenching temperature ℃		Holding time min	Hardening medium	Temper temperature ℃	After tempering hardness ≥HRC
			salt-bath furnace	controlled atmosphere furnace
235	262	788	1191	1204	5～15	air cooling	522	60

Stainless steel is widely used in various fields, it can be used as chemical industry, oil refining industry, synthetic fiber industry, food, medicine and daily necessities of acid-proof, alkali resistance, resistance to high pressure of the pressure vessel equipment and material storage and operation of tank; Also can be used as electric power industry, the steam turbine manufacturing industry, shipbuilding industry, aviation industry of high temperature and low temperature components; In the aerospace industry, nuclear industry and manufacturing artificial satellites, spacecraft, the rockets and nuclear power plant and so on of the indispensable materials.

【Simple calculation formulas for AISI431 stainless steel weight】
Stainless steel plate formula of weight (kg) per square meter：SG×T(mm) ×W（m）L(m)
304,321 tubes per material weight (kg) is calculated: 0.02491 × wall thickness (mm) × (OD - Wall Thickness) (mm)
316L, 310S tube Hemmi Weight (kg) is calculated: 0.02495 × wall thickness (mm) × (OD - Wall Thickness) (mm)
Stainless steel bar: diameter × diameter × 0.00623: kg / m
Stainless chromium steel: diameter × diameter × 0.00609: kg / m
Stainless steel angle: width × thickness × 0.015: kg / m
Stainless steel channel: width × thickness × 0.015 × 2: kg / m

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