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The UNS N06030/DIN W.NR. 2.4603 Seamless Pipe is a specialized solution designed for highly corrosive chemical environments, offering exceptional resistance to both oxidizing and reducing acids. Composed of nickel-chromium-molybdenum-tungsten alloy, this pipe ensures long-term reliability in aggressive media, ideal for chemical processing, waste treatment, and mining applications.
Superior Corrosion Resistance:
Composition: Ni (45-55%), Cr (28-31%), Mo (4-6%), W (3-4%), providing resistance to sulfuric acid (H₂SO₄ 20-80%, 120°C) and hydrochloric acid (HCl ≤10%, 80°C).
Pitting resistance: PREN (Pitting Resistance Equivalent Number) ≥40, surpassing 904L stainless steel, with zero pitting in ASTM G48 Method B (6% FeCl₃, 50°C, 72 hours).
Mechanical Properties:
Tensile strength ≥650 MPa (annealed), yield strength ≥280 MPa, elongation ≥35%, with excellent ductility for cold bending (bend radius ≤3x wall thickness).
Temperature range: -200°C to +1100°C, suitable for cryogenic liquefaction and high-temperature acid distillation.
Manufacturing Standards:
Seamless cold-drawn process (ASTM B619, ASME SB-619), sizes: OD 8-250mm, wall thickness 1-15mm, with 100% helium leak testing (leak rate ≤1x10⁻⁹ mbar·L/s).
Surface finish: Electropolished (Ra ≤0.5μm) for critical fluid systems, reducing corrosion initiation points by 40%.
Sulfuric Acid Production: Transports concentrated H₂SO₄ in alkylation units and fertilizer plants, outlasting carbon steel by 10x in similar conditions.
Waste Acid Recovery: Used in pickling lines for steel plants, resisting mixed acid (HNO₃ + HF) environments (HF ≤5%, 60°C).
Mining & Metallurgy: Supports leaching processes in nickel/cobalt extraction, enduring chloride-rich solutions (Cl⁻ ≤30,000ppm) and oxidizing agents (Fe⊃3;+ ≤10g/L).
Pharmaceutical Acid Handling: Transports high-purity acids in API synthesis, with FDA-compliant surface treatments (passivation to USP <788> standards).
Acid Resistance Leader: Unique W-Mo-Cr balance provides 50% better resistance to concentrated sulfuric acid than Hastelloy C-22, validated by 5-year field trials.
Leak-Free Design: Helium leak testing ensures zero leakage in high-purity chemical systems, critical for pharmaceutical and semiconductor applications.
Custom Sizing: Offer micro-diameter pipes (OD 8-20mm) for lab-scale reactors and large-diameter pipes (OD ≥300mm) for industrial pipelines, with 4-week lead time.
Compliance Assurance: Certified to NACE MR0103, BS EN 10216-5, and ASME BPVC Section II, ensuring safety in the most corrosive chemical environments.
Chemical Composition | |||||||||||||
% | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | P | S | Cu | Nb+Ta |
MIN | BALANCE | 28.00 | 13.00 | 4.00 | 1.50 | 1.00 | 0.3 | ||||||
MAX | 31.50 | 17.00 | 6.00 | 4.00 | 5.00 | 0.03 | 1.50 | 0.80 | 0.04 | 0.02 | 2.40 | 1.5 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 622 | DENSITY | 8.22g/cm3 | MELTING RANGE | 1370-1400℃ |
Specifications Of UNS N06030/DIN W. NR. 2.4603 Seamless Pipe |
OD: 1mm-325mm
WALL THICKNESS: 0.2mm-20mm
Max Length:12m (Special specifications are available as required)
Production Processes |
The UNS N06030/DIN W.NR. 2.4603 Seamless Pipe is a specialized solution designed for highly corrosive chemical environments, offering exceptional resistance to both oxidizing and reducing acids. Composed of nickel-chromium-molybdenum-tungsten alloy, this pipe ensures long-term reliability in aggressive media, ideal for chemical processing, waste treatment, and mining applications.
Superior Corrosion Resistance:
Composition: Ni (45-55%), Cr (28-31%), Mo (4-6%), W (3-4%), providing resistance to sulfuric acid (H₂SO₄ 20-80%, 120°C) and hydrochloric acid (HCl ≤10%, 80°C).
Pitting resistance: PREN (Pitting Resistance Equivalent Number) ≥40, surpassing 904L stainless steel, with zero pitting in ASTM G48 Method B (6% FeCl₃, 50°C, 72 hours).
Mechanical Properties:
Tensile strength ≥650 MPa (annealed), yield strength ≥280 MPa, elongation ≥35%, with excellent ductility for cold bending (bend radius ≤3x wall thickness).
Temperature range: -200°C to +1100°C, suitable for cryogenic liquefaction and high-temperature acid distillation.
Manufacturing Standards:
Seamless cold-drawn process (ASTM B619, ASME SB-619), sizes: OD 8-250mm, wall thickness 1-15mm, with 100% helium leak testing (leak rate ≤1x10⁻⁹ mbar·L/s).
Surface finish: Electropolished (Ra ≤0.5μm) for critical fluid systems, reducing corrosion initiation points by 40%.
Sulfuric Acid Production: Transports concentrated H₂SO₄ in alkylation units and fertilizer plants, outlasting carbon steel by 10x in similar conditions.
Waste Acid Recovery: Used in pickling lines for steel plants, resisting mixed acid (HNO₃ + HF) environments (HF ≤5%, 60°C).
Mining & Metallurgy: Supports leaching processes in nickel/cobalt extraction, enduring chloride-rich solutions (Cl⁻ ≤30,000ppm) and oxidizing agents (Fe⊃3;+ ≤10g/L).
Pharmaceutical Acid Handling: Transports high-purity acids in API synthesis, with FDA-compliant surface treatments (passivation to USP <788> standards).
Acid Resistance Leader: Unique W-Mo-Cr balance provides 50% better resistance to concentrated sulfuric acid than Hastelloy C-22, validated by 5-year field trials.
Leak-Free Design: Helium leak testing ensures zero leakage in high-purity chemical systems, critical for pharmaceutical and semiconductor applications.
Custom Sizing: Offer micro-diameter pipes (OD 8-20mm) for lab-scale reactors and large-diameter pipes (OD ≥300mm) for industrial pipelines, with 4-week lead time.
Compliance Assurance: Certified to NACE MR0103, BS EN 10216-5, and ASME BPVC Section II, ensuring safety in the most corrosive chemical environments.
Chemical Composition | |||||||||||||
% | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | P | S | Cu | Nb+Ta |
MIN | BALANCE | 28.00 | 13.00 | 4.00 | 1.50 | 1.00 | 0.3 | ||||||
MAX | 31.50 | 17.00 | 6.00 | 4.00 | 5.00 | 0.03 | 1.50 | 0.80 | 0.04 | 0.02 | 2.40 | 1.5 | |
Specification | Physical Properties | ||||
Seamless pipe and tube | ASTM B 622 | DENSITY | 8.22g/cm3 | MELTING RANGE | 1370-1400℃ |
Specifications Of UNS N06030/DIN W. NR. 2.4603 Seamless Pipe |
OD: 1mm-325mm
WALL THICKNESS: 0.2mm-20mm
Max Length:12m (Special specifications are available as required)
Production Processes |
