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Gangsteel, a leading Chinese exporter of high-quality stainless steel products, offers premium ASTM A240 / A276 Type 430 (UNS S43000) BA stainless steel coils. This ferritic stainless steel grade, equivalent to JIS SUS430, provides excellent corrosion resistance, formability, and thermal conductivity at a competitive price point. Ideal for applications requiring a bright, reflective surface, our BA (Bright Annealed) finish coils are produced to meet stringent American standards, ensuring reliability for global markets. As nickel-free stainless steel, Type 430 serves as an economical alternative to austenitic grades like 304, with superior performance in mild environments.
Manufactured in China using advanced cold-rolling and annealing processes, these coils are exported worldwide for use in appliances, automotive trim, and architectural elements. Below, we detail the key features, specifications, pricing, and more for ASTM A240 / A276 430 BA stainless steel coils as of February 24, 2026.
Introduction to ASTM A240 / A276 Type 430
ASTM A240 covers chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and general applications, while A276 specifies stainless steel bars and shapes. Type 430 under these standards is a straight-chromium ferritic alloy with 16-18% chromium, offering good oxidation resistance up to 815°C (1500°F) and magnetic properties. The BA finish, achieved through bright annealing in a controlled atmosphere, results in a highly reflective, mirror-like surface free from scale and oxidation.
Key Benefits of Type 430 BA Coils
Gangsteel's Type 430 BA coils are available in thicknesses from 0.25 mm to 3.0 mm, widths up to 1500 mm, and coil weights tailored to customer needs.
Chemical Composition and Mechanical Properties
The composition and properties of ASTM A240 / A276 Type 430 are strictly controlled to ensure consistent performance.
Chemical Composition
Type 430's chemistry emphasizes chromium for corrosion resistance while minimizing carbon to prevent embrittlement.
|
Element |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
|---|---|---|---|---|---|---|---|
|
Content (%) |
≤0.12 |
≤1.00 |
≤1.00 |
≤0.040 |
≤0.030 |
16.00-18.00 |
≤0.75 |
This formulation ensures a stable passive layer, providing resistance to atmospheric corrosion, fresh water, and mild acids.
Mechanical Properties
In the annealed condition, Type 430 exhibits balanced strength and ductility.
|
Property |
Value |
|---|---|
|
Yield Strength (0.2% offset) |
≥205 MPa (30 ksi) |
|
Tensile Strength |
≥450 MPa (65 ksi) |
|
Elongation (in 2") |
≥22% |
|
Hardness (Rockwell B) |
≤89 HRB |
|
Density |
7.75 g/cm³ |
These properties make it suitable for forming operations, with good weldability using common techniques.
Available Specifications and Finishes
Gangsteel supplies Type 430 coils compliant with ASTM A240 for sheets/strips and A276 for related forms. Standard tolerances include thickness ±0.03 mm and width ±0.5 mm.
BA Finish Details
The BA (Bright Annealed) finish is our specialty for Type 430 coils:
Other finishes like 2B or No.4 are available upon request, but BA is preferred for its aesthetic appeal in end-use products.
Current Market Pricing (as of February 24, 2026)
Pricing for ASTM A240 Type 430 BA stainless steel coils remains competitive, influenced by stable raw material costs and strong Chinese production capacity. The following quotes are FOB China Port on a CFR basis, based on recent market data from February 23, 2026. Prices may vary with quantity, customization, and global factors.
Pricing for BA+PI Finish Coils (Set 1: Thinner Gauges)
Suitable for precision applications.
|
Item |
Thickness (mm) |
Width (mm) |
Total Tons |
USD/MT CFR |
|---|---|---|---|---|
|
1 |
0.40 |
1001 |
20.00 |
1274.00 |
|
2 |
0.50 |
1001 |
20.00 |
1244.68 |
|
3 |
0.60 |
1001 |
20.00 |
1244.68 |
|
4 |
0.80 |
1001 |
20.00 |
1244.68 |
|
5 |
1.00 |
1001 |
20.00 |
1244.68 |
Total Quantity:100 tons Average Price: ~1249.54 USD/MT
Pricing for BA+PI Finish Coils (Set 2: Standard Gauges)
For general industrial use.
|
Item |
Thickness (mm) |
Width (mm) |
Total Tons |
USD/MT CFR |
|---|---|---|---|---|
|
3 |
1.00 |
1001 |
20.00 |
1244.68 |
|
4 |
1.00 |
1220 |
20.00 |
1230.01 |
|
5 |
1.20 |
1220 |
20.00 |
1230.01 |
|
6 |
1.50 |
1220 |
20.00 |
1244.68 |
Total Quantity:80 tons Average Price: ~1237.35 USD/MT
Pricing for BA Finish Coils with Tolerances (Ultra-Thin)
For high-precision needs, including tolerances.
|
Item |
Thickness Tolerance |
Thickness (mm) |
Width (mm) |
M/T |
USD/MT CFR |
Total USD |
|---|---|---|---|---|---|---|
|
1 |
0.22-0.25 mm |
0.25 |
1000 |
26.5 |
1392.66 |
36905.60 |
|
2 |
0.25-0.28 mm |
0.28 |
1000 |
26.5 |
1326.97 |
35164.73 |
|
3 |
0.27-0.30 mm |
0.30 |
1000 |
27.0 |
1312.37 |
35434.05 |
Total Quantity:80 tons Total Value: 107,504.38 USD Average Price: ~1343.80 USD/MT
Prices are indicative; contact Gangsteel for customized quotes.
Applications of Type 430 BA Coils
Type 430 BA stainless steel coils are versatile across industries due to their durability and aesthetics.
Household and Appliances
Used in refrigerator panels, dishwasher interiors, and kitchen sinks for their bright finish and resistance to staining.
Automotive and Transportation
Ideal for trim, exhaust components, and wheel covers, benefiting from formability and corrosion resistance in road environments.
Architectural and Construction
Employed in cladding, roofing, and decorative elements where the BA surface enhances visual appeal and withstands weathering.
Other uses include food processing equipment, heat exchangers, and medical instruments.
ASTM A240 430 Equal grade
|
Country |
STANDARD |
Grade |
|---|---|---|
|
JIS |
JIS G4305 |
|
|
ASTM |
ASTM A240 / A276 |
|
|
UNS |
UNS |
|
|
EN |
EN 10088-2 |
|
|
DIN |
DIN EN |
|
|
GB |
GB/T 4237 / GB/T 3280 |
|
|
BS |
BS 1449 / BS 970 |
430S17 / 430S29 |
|
AFNOR |
AFNOR |
Z8C17 |
|
ISO |
ISO 683-2 / ISO 4954 |
X6Cr17 / 4016-430-00-I |
|
SS |
Swedish SS |
2320 |
|
GOST |
GOST |
12X17 / 12Ch17 |
|
UNI |
UNI |
X8Cr17 |
FAQ
What is the difference between ASTM A240 and A276 for Type 430?
A240 applies to flat-rolled products like coils and sheets, focusing on pressure vessel and general use. A276 covers bars and shapes, emphasizing structural forms. Both ensure similar material properties for Type 430.
Is Type 430 magnetic?
Yes, as a ferritic stainless steel, Type 430 is magnetic, unlike austenitic grades like 304. This property aids in handling and separation processes.
How does the BA finish compare to 2B?
BA offers a brighter, more reflective surface due to controlled annealing, while 2B is matte and pickled. BA is preferred for decorative applications.
What are the welding considerations for Type 430?
It has good weldability but may require preheating to avoid cracking. Use matching fillers or austenitic wires, followed by post-weld annealing for optimal corrosion resistance.
Can Gangsteel provide custom sizes?
Yes, we offer slitting, edging, and protective coating services. Minimum order quantities start at 5 tons, with lead times of 15-30 days.
How do prices fluctuate?
Prices depend on chromium market trends, order volume, and shipping terms. As of February 24, 2026, they remain stable, but we recommend requesting real-time quotes.
For more information or samples, contact Gangsteel today. Our team is ready to assist with your stainless steel needs.
Gangsteel, a leading Chinese exporter of high-quality stainless steel products, offers premium ASTM A240 / A276
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