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High Hardness Grade 440A Flat Stainless Steel Bar Hot Rolled ASTM DIN

High Hardness Grade 440A Flat Stainless Steel Bar Hot Rolled ASTM DIN

Brand Name : WINFAST
Model Number : 440A
Certification : ISO
Place of Origin : CHINA
MOQ : 200 kgs
Price : 4000 - 5000 USD/Ton
Payment Terms : L/C, T/T, Western Union
Supply Ability : 200 Ton/month
Delivery Time : 5 - 15 days
Packaging Details : good packing suit for export
Products : stainless steel flat bar
Size : 20*4-200*20 or as clients request
Length : 4m 6m or cutting the informed length
Type : hot rolled
Grade : 440A
Standard : ASTM DIN
Company type : factory
Service : cutting
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High Hardness Grade 440A Stainless Steel Flat Bars ASTM DIN Flat Stainless Steel Iron Bars

1. Product:stainless steel flat bars
2. Thickness:3 - 80.0mm
3. Width:20mm~400mm
4. Length:1~6 meters
5. Steel type:302, 303, 303Cu, 304, 304L, 308, 316, 316L, 321, 347, 431, 416, 630,
17-4PH, S31803 (F51), S32205 (F60), S32750 (F53), S32760 (F55), 904L 440A/B/C
6. Standard:ASTM 276, ASTM A564, ASTM A582, ASTM A484
7. Surface:Bright, peeled, polished, or black etc, will be as per customers' request
8. Tolerance:H9, H11, H13, K9, K11, K13 etc…as per clients’ request etc
9. Finishing:Solution treated
12. Application:Shipbuilding industry, machine-made industry, food industry, paper mill equipment.
13. Delivery timeGenerally within 25 days, as per the q’ty.
14. Certificate:ISO, BV, TUV, SGS, mill test certificate
15. Package:Good quality & fumigated wooden box, can better protect the bars. ( See pictures below )
16. Experience::We have much experience in producing the stainless steel flat bar, enjoy good reputations.

Introduction of 440A stainless steel

440A is one of the workhorses of the Sports and Tactical Knife industry. The majority of entry level knives use either 440A, 420HC or AUS-6 steel. 440 is a medium carbon, martensitic stainless steel that is very corrosion resistant and extremely tough that can be hardened to about RC58.

While not considered a premium knife steel, 440A still has some very good properties for cutlery use. It takes a very fine edge and will easily pop the hairs off your arm if heat treated properly, and is more corrosion resistant and tougher than 440B or 440C.

440A is rarely used by custom knifemakers, and is usually only used by production knife companies. Some of the Knife companies using this steel include Kershaw, Gerber and Buck.

440A belongs to the family of stainless steels that include 440B and 440C, the major differences being the variance in carbon content. 440A and 440B are actually indentical aside from carbon content.

Chemical composition of 440A stainless steel


Mechanical Properties
Typical mechanical property requirements for annealed product
Yield Strength, min. (ksi)60-62
Tensile Strength, min. (ksi)65
Elongation, min. (%)20
Hardness, max. (Rb)95-96

Applications of 440A stainless steel

  • Cutlery
  • Bearings
  • Gage blocks
  • Molds and dies
  • Valve components
  • Turbine components
  • Medical instruments
  • Aircraft structural parts
  • Knives and measuring instruments

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High Hardness Grade 440A Flat Stainless Steel Bar Hot Rolled ASTM DIN Images

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