347 Stainless Steel CR Plates
Technique:Cold Rolled
Specification:0.5-3.0mm
Surface Treatment:Mirror, Golden Mirror, Hairline, No.4 Satin etc.
Certificates:SGS, TUV and Mtc
Inspection;Third Partyinspection
Transport Package:Metal Pallet Standard Export Package
What is 347 Stainless Steel CR Plates ?
347 Stainless Steel Cold-Rolled Plate is a niobium stabilized austenitic stainless steel with excellent high temperature resistance and intergranular corrosion resistance. It is widely used in high temperature environments such as aerospace, petrochemical, heat exchangers and pressure vessels.
347 stainless steel plate

Advantages of 347 custom stainless steel plate
347 stainless steel plate contains 18-20% Cr, 9-12% Ni and niobium. It is produced by cold rolling process with a thickness of 0.5-3.0mm. It passes the ASTM A262 intergranular corrosion test, solves the problem of high-temperature welding cracking of traditional 304 stainless steel, and has no oxide scale peeling after long-term use at 850℃. Its oxidation resistance is better than 304 and slightly inferior to 321. It is suitable for high-temperature structural parts that need to be welded (such as nuclear power pipelines and petrochemical heat exchangers), and complies with international standards such as ASTM A240, GB/T 3280, and JIS G4305.
347 stainless steel cold rolled plate applications:
Aerospace engine parts
Petrochemical equipment
Heat exchangers and boilers
High-temperature pressure vessels
Chemical reactors and piping systems
ss 347 plate price
GNEE is equipped with a stainless steel plate production line with an annual production capacity of tens of thousands of tons, which supports fast delivery of large orders and meets the centralized procurement needs of large projects. It can provide thickness (complex layer 1.5-10mm, base layer 6-200mm) and specifications (maximum width 4000mm, length 12000mm) according to customer requirements, and supports detailed design of drawings and process optimization.
ASME SA240 347 Stainless Steel Plate Specifications
| Property | Specification |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| UNS Number | S34700 |
| EN Designation | 1.4550 |
| Thickness Range | 0.3 mm – 5 mm |
| Width Range | 1000 mm – 1500 mm |
| Length Range | 2000 mm – 6000 mm |
| Surface Finish | 2B, BA, No.4, Mirror |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% offset) | ≥ 205 MPa |
| Elongation (in 50 mm) | ≥ 40% |
| Hardness | ≤ 201 HBW |
| Density | 7.93 g/cm³ |
| Melting Range | 1398–1446°C |
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