SUS 444 Stainless Steel Bars for Food industry

GNEE Stainless Steel, as a professional supplier of stainless steel bars, has stable sourcing channels from major domestic mills such as Baosteel and TISCO, and supports flexible supply from sample orders to bulk procurement.

 

GNEE supplies SUS444 (UNS S44400 / 1.4521) food-grade stainless steel bars in accordance with ASTM A276 / A479 standards. Available forms include round bars, square bars, and hex bars, with diameters ranging from 6–200 mm and lengths of 2–6 m or customized. Surface finishes include black, bright, polished, and turned finishes, meeting the machining requirements of components such as shafts, agitators, valve stems, and support parts used in food processing equipment.

 

Our SUS444 stainless steel bars are manufactured through forging at 1100–1200°C and hot rolling, followed by annealing at 850–920°C, precision straightening, and surface finishing. They then undergo eddy current and ultrasonic testing, full dimensional inspection, and pickling and passivation. A zero-contamination control process is maintained throughout production to ensure the material is safe, non-toxic, and free from precipitation, complying with FDA and EU 1935/2004 food contact standards.

 

 

In chloride-containing food environments (such as brine and cleaning agents), SUS444 shows no stress corrosion cracking, with long-term resistance to rust and no heavy metal precipitation. Its thermal conductivity is 130–150% that of austenitic stainless steel, while its thermal expansion coefficient is only 60–70%. Being nickel-free, it offers a cost advantage of 15–20% compared to 316L. Each batch is supplied with a Mill Test Certificate, EN 10204 3.2 certification, and food-grade inspection reports, with a finished product qualification rate of ≥99.5% and fast delivery capability.

 

SUS 444 Stainless Steel Bars Specifications

ITEM	Stainless Steel Bar / Stainless Steel Rod
Type	Stainless Steel Round Bar Rod
Grade	201  304 304L 316 316L 309 310 310S 410 420 430 444 904L 2205 2507
Surface Finish	Polish,Black,bright,rough turned,grinding,centreless Ground etc
Standard	JIS,GB,AISI,ASTM,DIN,EN,SUS,UNS etc
Technique	Cold Rolled; Hot Rolled;Cold Drawn,Forged
Testing Methods	Flaw detection, Eddy current testing, Hydrostatic testing or Ultrasonic examination and also with chemical and physical property inspection
Diameter	3-480mm
Length	3000mm, 4000mm,5800mm,6000mm,12000mm,or as required.
Lead Time	7-15 working days after the receipt of 30% deposit
Payment Terms	30% TT for deposit,70% TT balance before shipment.
Price Terms	FOB, EXW, CIF, CFR
Packing	Standard Seaworthy Package or according to customer's requirements

 

Chemical Composition (%)

Element	C	Si	Mn	P	S	Cr	Mo	Ti+Nb
Value	≤ 0.025	≤ 1.00	≤ 1.00	≤ 0.040	≤ 0.030	17.5 - 19.5	1.75 - 2.50	0.2+4(C+N) min

 

Mechanical Properties (at Room Temperature)

Property	Minimum Value	Typical Value
Tensile Strength (Rm)	≥ 410 MPa	450 - 580 MPa
Yield Strength (Rp0.2)	≥ 245 MPa	310 MPa
Elongation (A%)	≥ 20%	25%
Hardness (Brinell HB)	≤ 217	180

 

In addition, we provide deep processing services such as cutting, turning, grinding, and polishing, along with professional material selection advice and welding guidance. SUS444 can be welded using conventional stainless steel welding methods without the risk of intergranular corrosion after welding.

 

 

SUS 444 Stainless Steel Bars Applications

Food and beverage processing: Used in machinery, piping, and dairy equipment.
Hot water heating and storage: Widely used in household hot water tanks, water containers, and water heaters.
Process industry components: Suitable for boiler parts, fumed ducts, and chemical processing equipment.

 

 

corrosion resistance：SUS 444 vs. SUS 316/304?

SUS 444 demonstrates excellent resistance to stress corrosion cracking, pitting, and crevice corrosion in chloride-containing environments,such as brine used in food processing, cleaning agents, and acidic media containing chlorides. Accelerated laboratory corrosion tests have shown that it remains free of cracks after 48 hours in a boiling magnesium chloride solution; its resistance to stress corrosion cracking is significantly superior to that of SUS 304 (which developed cracks in 2.5 hours) and SUS 316L (which developed cracks in 9.8 hours). This makes it highly suitable for use in pickling equipment, seafood processing lines, high-temperature cleaning systems, and water treatment applications.

 

SUS 444 Stainless Steel Bars Manufacturer

To meet the high standards of the food industry, our SUS 444 stainless steel bars strictly adhere to the JIS G4303 standard, maintaining a PREN value (pitting resistance equivalent) consistently between 24 and 26. For packaging, we use a single-layer PE protective film with fiber-reinforced hexagonal binding. For precision-ground bars with tolerances of h8-h9, we also provide export-grade fumigated wooden crates to ensure a surface roughness ≤0.4μm and prevent scratches caused by logistics transportation.

 

Regarding delivery time, standard Φ10-Φ120mm bars are in stock and can be shipped within 48 hours; orders requiring custom cutting or surface grinding have a delivery time of 5-7 working days; the factory production cycle for large-volume non-standard contract materials is 30-35 days, and a 100% Material Conformity Certificate (MTC) is provided with each shipment, including a traceable furnace number and a third-party food-grade contact test report.