Project Description

Commitment to You

We are committed to integrate steel resources in china and serve the global steel market. We have 15+ years of experience in steel researching, production, managing and sales.

Our ability to purchase materials directly from leading mills will give you the competitive edge. Any Questions Just Call +86-731-89903933

2750 S32750 1.4410 Duplex Stainless Steel Pipe and Tube

UNS S32750 is a super duplex stainless steel supplied in the solution annealed condition. As a super duplex stainless steel, it combines the desirable aspects of both austenitic and ferritic grades. The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >41, providing pitting and crevice corrosion resistance superior to austenitic and duplex stainless steels in almost all corrosive media, and a Critical Pitting Temperature exceeding 50°C.

Stainless Seamless Fluid Pipe Quality Control

  1. Raw materials pipe blank quality classification: high quality, medium, economical
  2. Raw materials inspection after receive in factory
  3. After pickled, tube will be grinded careful to less defect
  4. Multiple cold drawn/rolled process for precision dimension
  5. Standard heat-treated of continuous annealed/solution for better property, intergranular corrosion
  6. Full Inspection: ET, UT, Hydraulic Test, Penetration Test, Grinded, Sand Blast, Print Making

*Besides bleow, we can supply comfortable price with equivalents quality for you! Welcome contact us.

We also can supply other kinds of:

  • Seamless Stainless Steel Pipe & Tube
  • Welded Stainless Steel Pipe & Tube
  • U Type Stainless Steel Pipe & Tube
  • Coil Type Stainless Steel Pipe & Tube(Max 300meter), seamless or welded
  • Annealed Pickled AP Stainless Steel Pipe & Tube (Ra ≤5μm)
  • Bright Annealed BA Stainless Steel Pipe & Tube (Ra ≤8μm)
  • Mechanical Polished MP Stainless Steel Pipe & Tube (Ra ≤8μm)
  • Electro Polished EP Stainless Steel Pipe & Tube (Ra ≤25μm)
  • Sanitary Stainless Steel Pipe & Tube
  • Capilllary Stainless Steel Pipe & Tube
  • Instrument Stainless Steel Pipe & Tube

Benefits

  • Very high corrosion resistance
  • Superior resistance to pitting and cracking in harsh environments
  • Good weldability and workability
  • High yield and tensile strength

Equivalent grades

DIN EU
EN		 USA
–		 France
AFNOR		 Sweden
SS
1.4410 X2CrNiMoN25-7-4 S32750 Z3CND25-06Az 2328

Chemical composition %  

C Si Mn Ni P S Cr Mo N
max   0.03 max   1 max   2 6 – 8 max   0.035 max   0.015 24 – 26 3 – 4.5 0.24 – 0.35

MECHANICAL PROPERTIES

Yield strength Rp0.2,
MPa		 Tensile strength Rm,
MPa		 Elongation[%] Hardness[HB] Impact, Charpy-V, -46ºC[J] Pre
 ≥ 550  ≥ 750  ≥ 25  ≤ 310  ≥ 45  ≥ 40
 ≥ 550  750 – 1000  ≥ 25  ≤ 310  ≥ 45  ≥ 40
 ≥ 550  750 – 930  ≥ 25  ≤ 310  ≥ 45  ≥ 40
 ≥ 550  750 – 930  ≥ 25  ≤ 310  ≥ 45  ≥ 40

Stainless Steel Tube & Pipe Sizes:

Outsider Diameter OD : 6-630mm ; WT 3-60mm ; L max 16meter

Stainless Steel Tube Delivery Condition:

  • Solution Treatment

Stainless Tube Surface:

Acid pickling – pre-passivation process of treating stainless steel parts with an acid solution, typically hydrochloric or sulfuric acid, which can remove oxide scale and heat tint while dissolving steel flecks embedded in the part.

Polishing – P grade sandpaper: P150, P200, P250, P300, P400, P500, P600, P700, P800

Stainless Pipe Inspection and Testing:

Chamical analysis / Tensile test at room temperature / flattening test / ring tensile test / drift expemdomg test / ring expanding test / leak tightness test / Tensile test at elevated temperature / impact test at room temperature / impact test at low temperature / eddy current test / ultrasonic test / magnetic flux leakage test

Stainless Tube Marking and Packages:

In addition to the marking prescribed in specification as client’s request.

Bare / Nylon / Plastic / Wooden Case

Synopsis

UNS S32750 or 2507 Duplex is a super austenitic premium stainless that is similar to 2205 Duplex. 2507 Stainless Steel is composed of 25% Chrome and 7% nickel which causes the alloy to have an even higher corrosion resistance and longer life span. Along with it being corrosion resistant, UNS S32750 has a high resistance of cracking and pitting, and the yield and tensile strength make it comparable to nickel alloys.

Resistance

Large chromium levels as well as molybdenum content of 2507 Duplex makes this material very resistant to corrosive acidic elements. It implements great resistance to chloride SCC and is preferable to 2205 Duplex in both strength and corrosive resistance.

Processing

2507 Duplex material will be heat treated at climates ~2000°F. After heated, the substance will be pursued by a annealed solution at ~1900°F then submergence in water. 2507 is easily cold worked and has a greater strength/lower ductility than austenitic stainless grades.

Experienced 15+ Years

Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets.

We Can Supply Follows Products with High Quality:

  1. Cold Rolled Steel Tube
  2. Cold Drawn Steel Tube
  3. Hollow Bar
  4. Honed Tube
  5. Plated Tube
  6. Plated Bar
  7. Boiler Tube

All Products According Quality Standard Strictly:

  1. ASTM: ASTM A519, ASTM A513.
  2. JIS:JIS G3441, JIS G3445, JIS G3466, JIS G3459.
  3. DIN: DIN1626, DIN1629, DIN2391, DIN2393, DIN2448, DIN2458.
  4. EN: EN10305.
  5. BS: BS6323.

Wide Range of Pipes to Fit Your Industry:

  1. OD from 5mm to 820mm.
  2. Wall Thickness from 0.1 to 100mm.
  3. Length up to 50mtr per pc.

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