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Stainless Steel Austenitic

Stainless Steel Austenitic Deutschland

  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe
  • 347H Stainless Steel Pipe

347H Stainless Steel Pipe

TP347H (1Cr19Ni11Nb) is a high-carbon niobium-containing Cr-Ni austenitic stainless steel. Because it contains the stabilizing element Nb, it has good intergranular corrosion resistance and polysulfate intergranular stress corrosion resistance. It can be used in corrosive media such as acids, alkalis, and salts. Its corrosion resistance is similar to that of 18-8 austenitic stainless steel containing Ti. Since Nb is less likely to be burned than Ti, this steel type can also be used as a welding core for welding chromium-nickel austenitic stainless steel. This steel type has higher high-temperature strength and better high-temperature oxidation resistance than the 316 series, so it is often used as a heat-strength steel.

Specifications

In stock, can be customized according to customer requirements

Form

Plate,Strip,Bar,Pipe

Classification

Stainless steel austenitic

Product Parameters

1)Product Specification and Steel Grade

 Type

 321 stainless steel seamless pipe

 Grade

 201,304,310,316,316l,317l,321 ,409,410,430,410s,904l,2205 etc.

 Surface Finish

 2B, BA,4K,8K, NO.1,2D,3#, HL

 Size Range

 From 4mm to 800mm800mm

 Wall Thickness Range

 From 1mm to 150mm (SCH10-XXS)

 Length Options

 4000mm, 5800mm, 6000mm, 12000mm, or as required.

 Standard

 AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc

 Type

 Round, square, rectangular, hexagonal, flat, angle

 Technique

 Cold rolled, hot rolled

 MOQ

 1 ton, We can accept sample order.

 Delivery port:

 Shanghai, Tianjin, Qingdao, Ningbo, Guangzhou, etc.

 Packaging Detail

 Standard export packaging, various transportation, according to customer needs

2)Chemical Composition 

Grade

C

Si

Mn

Cr

Ni

S

Nb

P

347H (S34709)

 

0.04~0.10

≤0.75

2.00

17.0~19.0

9.0~12.0

≤0.03

8C~1.00 

 

≤0.045

3) Mechanical Property

Grades

Tensile Strength(Mpa)

Yield Strength(Mpa)

Elongation(50mm)/%

HBW

Density

347H (S34709)

≥515

≥205

≥40%

≤201

7.98g/cm3

 

Application Scenario

347H stainless steel pipesare often used to manufacture large boiler superheaters, reheaters, steam pipes, petrochemical heat exchanger pipe fittings, etc.
347H stainless steel pipesare widely used in boilers, power generation, petroleum, chemicals, synthetic fibers, food, paper, and other industries. Used in large boiler superheater tubes, reheater tubes, steam pipes, and heat exchangers in the petrochemical industry. The allowable anti-oxidation temperature of 347H stainless steel pipes used in boiler tubes is 750°C.
347H stainless steel pipehas high strength and good low-temperature toughness at high temperatures, making it widely used in high-temperature and high-pressure vessels, reactors, heat exchangers, and other equipment.
347H stainless steel pipes can be used to manufacture high-temperature fasteners, combustion chambers, and other key components in the aviation and aerospace industry. In addition, 347H stainless steel pipe is also used in the automotive and transportation industries to make high-temperature parts, such as exhaust system components.

5

Production Process

The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:

  • Casting

    Casting

    Molten stainless steel and alloys are cast into large ingots or billets through a casting process.

  • Hot rolling

    Hot rolling

    During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.

  • Annealing

    Annealing

    Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.

  • Cold rolling

    Cold rolling

    Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.

Our Service

Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries, and more than 800 specifications.

Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.

  • Plate processing

    Machine cutting

    Sheet cutting

    plasma cutting

    Dynamic waterjet cutting

    sawing

    Plank leveling

    polishing

    laser cutting

  • Long product processing

    laser cutting

    production cutting

    Long product cutting

    Bar and structural cutting

    polishing

  • Value-added services

    Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.

    Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.

    Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.

Inquiry

Have questions about Wuxi Walmay Metal products?

Our professional sales team answers your questions within 24 hours.

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