Product Information
Name Martensitic Aged Steels FV520B & FV520 Instock
Equivalent Grade: 1.4594, X5CrNiMoCuNb14-5
Condition of delivery: Hot Forged/rolled, annealed / aged
Surface condition Bright condition - Peeled, Ground, Polished, Rough turned
Product Shape available: Round bars, Flat bars, Ring, Forged Step Shaft
Customs HS code: 722219 / 722220 / 722230
Material origin From: P. R. China.
Terms of price: Ex-works, CFR, CIF
Mode of transportation: Sea Shipment, Air Cargo, or International Express
Certification For Exportation: MTR, COC, Certificate of Origin, Form A/E, Invoice, Packing list, Bill of Lading.
Min.order quantity per batch: 3000 KG
Heat Treatment Practice: Solution 1040 ℃, water, oil or air cooled, Aged 480 / 550 / 620 ℃, air cooled
UT test standards: ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308
Meltling Process Route: EAF + VD + LF / BEF + ESR / +VAR
Standard Export Packing Way: Wooden box, pallet / tray free from fumigation
Production Lead Time: Within 55 days after 30% deposit prepayable
Description

Product Descriptiion
Grade FV520B Stainless steel is Martensitic
Stainless steel that should be precipitation hardened to achieve excellent mechanical properties by different age treatments. Alloy FV520 achieved high strength and hardness after ageing treatment. 

Chemical Composition (Weight %) - Grade FV520B
Carbon, C (%):  ≤ 0.07
Silicon, Si (%):  ≤ 0.70
Manganese, Mn (%):  ≤ 1.00
Phosphorus, P (%)≤:  0.035
Sulfur, S (%)≤:  0.025
Chromium, Cr (%):  13.0 ~ 15.0
Nickel, Ni (%): 5.00 ~ 6.50
Molybdenum, Mo (%): 1.20 ~ 2.00
Copper, Cu (%): 1.20 ~ 2.00
Niobium, Nb(%): 0.15 ~ 0.60

Mechanical Properties Under Special Heat treatment Practice
Form available: Round bar, flat bar, forgings
Condition: double overaged,1050º C +2 hours 750 - 850 ºC,+2 hours 750 - 850 ºC
Proof stress (N/mm²): 800
Tensile strength, σb/MPa:  925 ~ 1050
Yield strength, σ0.2/MPa:  375
Elongation, δ (%): 15.0
Hardness | HB: 277 ~ 355
Impact strength, AKv /Min: 40

Metals, Stocklist and Services
Stock over 50 grades with a competitive price, along with cutting service for specific requirement.
With extensive Stock with a prompt delivery, Customizing special material is welcome.