440A stainless steel, UNS S44002, 7Cr17MoV, EN 1.4109, DIN X70CrMo15, Strips, Coils, sheets, plates

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US $1,000-10,000 / Metric Ton | 1 Metric Ton/Metric Tons 440A stainless steel sheet (Min. Order)
Supply Ability:
500 Metric Ton/Metric Tons per Month
Port:
shanghai
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Overview
Quick Details
Grade:
400 Series
Standard:
ASTM, AISI, DIN, EN, GB, JIS
Length:
customized
Thickness:
0.2mm ~ 20.0mm
Width:
250mm
Place of Origin:
Jiangsu, China (Mainland)
Brand Name:
changjiang
Model Number:
AISI 440A / JIS SUS440A / EN 1.4109 / DIN X70CrMo15
Type:
Plate
Application:
Cutlery and scissors.
Certification:
SGS
techique:
cold rolled and hot rolled, annealed
Packaging & Delivery
Packaging Details
Seaworthy packing
Delivery Time
35 days after receipt the 30% advanced payment

440A high carbon stainless steel, UNS S44002, 7Cr17MoV, EN 1.4109, DIN X70CrMo15, Strips, Coils, sheets, plates

 

Steel Type 440A is a high-carbon martensitic stainless steel developed to provide stainless properties with maximum hardness. It is magnetic in both the annealed and hardened conditions. Maximum hardness and corrosion
resistance are available only in the hardened or hardened and stress relieved conditions, so the alloy is not used in the annealed or annealed and tempered conditions.
Dental and surgical instruments and cutlery are frequent applications for Type 440A.

 

COMPOSITION (wt %)
Carbon 0.60 – 0.75
Manganese 1.00 max.
Phosphorus 0.040 max.
Sulfur 0.030 max.
Silicon 1.00 max.
Chromium 16.0 – 18.0
Molybdenum 0.75 max.

 

CORROSION RESISTANCE
Type 440A provides good corrosion resistance in the hardened and stress relieved condition. It is resistant to fresh water,
steam, crude oil, gasoline, perspiration, alcohol and foodstuffs.

 

HEAT TREATMENTS
Full Annealing: Heat uniformly at 1500 – 1600 °F (816 – 871 °C), soak and cool slowly in furnace to 1000 – 1200 °F

(538 – 649 °C) at a rate of 20 – 50 °F (11 – 27 °C) per hour, then cool in air, oil or water.
Process Annealing: Heat at 1350 – 1450 °F (732 – 788 °C), then cool very slowly in the furnace.
Hardening: Preheat slowly to 1450 °F (788 °C) and soak, then raise temperature
to 1850 – 1950 °F (1010 – 1066 °C), quench in warm oil or air. Produces Rockwell hardness
of C55 – 58. Stress relieve immediately. A subzero treatment of -100 °F (-73 °C) is recommended in order to obtain

maximum hardness. Stress Relieving: Heat to 300 – 800 °F (149 – 427 °C) for 1 to 3 hours, air cool.

 

Your contact - we are specialized in the high performance stainless martensitic steels.
Paul 
skype: paul_luhongxiang
cell: 86 15190257143
export @ ahoneststeel.com

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