SUS431 DP2 Stainless Steel Sheet Price Per Ton

If you are sourcing SUS431 stainless steel plates for shafts, fasteners, pump components, or high-strength mechanical parts, then price is a factor you should consider. Understanding the price per ton, performance advantages, and market timing will help you control costs while ensuring long-term reliability.

 

SUS431 DP2 stainless steel sheet price per ton

As of early 2026, import/wholesale offers for AISI 431 (SUS431, EN 1.4057) sheet/plate​ are around USD 2.10–2.50/kg, equivalent to about USD 2,100–2,500/ton​ depending on thickness, finish, and order size.

 

What is SUS431 DP2 stainless steel sheet?

SUS431 stainless steel plate is a Japanese standard martensitic stainless steel (equivalent to AISI 431 / EN 1.4057) with high tensile strength (≥ 980 MPa after heat treatment) and good corrosion resistance in mild environments. It is commonly used for high-strength shafts, valve components, and pump parts requiring moderate corrosion and wear resistance.

What is DP2 stainless steel?
DP2 = Dull Polished on both Sides = Brushed = Satin Finish. All thicknesses. BP1 = Bright (Mirror) Polished on 1 Side = Polished. BP2 = Bright (Mirror) Polished on both Sides = Polished.

 

SUS431 stainless steel sheet specifications

Standard	ASTM A240
Grade	1Cr17Ni2, SUS431, X29CrMo13-4
Length	6000 mm (236.22 in) to 12000 mm (472.44 in), Customized
Thickness	10 mm (0.39 in), 12 mm (0.47 in), 15 mm (0.59 in), 20 mm (0.79 in), 3 mm (0.12 in), 6 mm (0.24 in), Customized
Width	1000 mm (39.37 in), 1200 mm (47.24 in), 1500 mm (59.06 in), 2000 mm (78.74 in)
Surface Finish	2B, BA, Brushed, Etched, HL, Mirror, No.1, No.4, Polished, Satin
Technique	Annealing, Bending, Cold Rolling, Grinding, Hot Rolling, Punching, Shearing, Welding
Form	Annealed plate, Brushed plate, Cold Rolled Plate and Sheet, Etched Plate, Hot Rolled Plate and Sheet, Pickled Plate, Polished Plate, Satin finish plate, Tempered plate

 

Chemical Compositions

Element	Carbon (C)	Silicon (Si)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)	Chromium (Cr)	Nickel (Ni)	Molybdenum (Mo)
Composition %	0.12-0.20%	0.50% max	1.00% max	0.040% max	0.030% max	15.00-17.00%	1.25-2.50%	0.20-0.50%

 

Mechanical Properties

Properties	Metric Unit	Imperial Unit
Tensile Strength	930-1080 MPa	135-157 ksi
Yield Strength	680-895 MPa	98.6-130 ksi
Vickers Hardness	270-320 HV	270-320 HV
Brinell Hardness	250-300 HB	250-300 HB
Rockwell Hardness	24-32 HRC	24-32 HRC
Elongation	15%	15%
Elastic Modulus	200 GPa	29,000 ksi

 

grade 431 stainless steels plate Applications

Grade 431 stainless steel plate is used for high-strength, corrosion-resistant parts like fasteners (bolts, nuts), shafts (pump, propeller, aircraft), valve components, and marine hardware, offering good toughness in marine, aerospace, oil & gas, and general engineering, thanks to its martensitic nature and heat-treatability to high hardness levels.

GNEE currently has SUS 431 (UNS S43100) products in stock, including: plates, sheets, coils, strips, tubes, bars, and wires. In addition, we offer a variety of surface finishes for you to choose from, such as: No. 1, 2B, 2D, BA, No. 3, No. 4, HL, No. 8, sandblasting, etc.

We guarantee 100% quality. We will never deliver any defective products to our customers. Please contact us to customize your required product specifications, including shape, condition, surface treatment, and processing techniques.

 

SUS431 Range of products

Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)×(W)×(L)	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm×L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting
Coil / Strip	Steel Coil/Steel Strip	0.03-16.0×1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm × WT:0.5-20