904L Stainless Steel Bar with 19-23% Chromium and 4-5% Molybdenum for Strong Acid Resistance

Price Negotiable

Price: FobShanghai usd 5.9-6.4/kg

MOQ: 100kgs

Delivery Time: 25-30 days subject to the clients' requirement and quantity

Brand: BLM-DX-1

Product Description

904L Stainless Steel Bar Overview

Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high-alloy stainless steel contains copper additions that significantly enhance its resistance to strong reducing acids, particularly sulphuric acid. The material demonstrates excellent resistance to stress corrosion cracking and crevice corrosion while being non-magnetic with superior formability, toughness, and weldability characteristics.

Chemical Composition

The compositional ranges of grade 904L stainless steel according to ASTM specifications:

Element	Carbon (C)	Manganese (Mn)	Silicon (Si)	Phosphorus (P)	Sulfur (S)	Chromium (Cr)	Molybdenum (Mo)	Nickel (Ni)	Copper (Cu)
904L Range	≤ 0.02%	≤ 2%	≤ 1%	≤ 0.045%	≤ 0.035%	19-23%	4-5%	23-28%	1-2%

Mechanical Properties

Property	Tensile Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in 50mm)	Rockwell B (HR B)	Brinell (HB)
904L Values	≥ 490	≥ 220	≥ 36	70-90 typical	150

Physical Properties

Property	Density (kg/m³)	Elastic Modulus (GPa)	Thermal Conductivity (W/m·K)	Specific Heat (J/kg·K)	Electrical Resistivity (nΩ·m)
904L Values	7900	190	11.5	500	952

International Grade Equivalents

UNS No	British Standard	Euronorm	Swedish SS
N08904	904S13	1.4539	2562

Material Characteristics

Excellent resistance to strong reducing acids including sulphuric acid
Superior stress corrosion cracking and crevice corrosion resistance
Non-magnetic with outstanding formability and weldability
Contains high-cost alloying elements including molybdenum and nickel
Often replaced by cost-effective duplex stainless steel 2205 in many applications