Chemical & Marine Grade Pure Nickel Bars — Fully Certified

Chemical plants and marine projects do not accept materials on trust — they accept them on certificates, traceability and corrosion history. A bar that performs in fresh water may fail in seawater; a supplier without the right documentation stalls the whole inspection. Certified pure nickel bars from DLX are built for these industries: four grades (N4, N6, Ni200, Ni201) selected per media, EN 10204 3.1 MTC with heat traceability on every shipment, and production under ISO9001 with SGS verification. Sizes are confirmed per drawing, and the annealed baseline of ≥462 MPa, ≥35% elongation and 90-120 HB hardness is documented, not assumed. Bars meet ASTM B160 and GB/T 4435-2010, with export packaging ready for plant and project delivery.

• EN 10204 3.1 MTC with heat traceability — documentation is part of the product.
• Four grades matched to service media — N4/Ni201 for purity and temperature, N6/Ni200 for industrial and marine corrosion duty.
• ISO9001 & SGS verified production — a certification chain buyers can audit.
• Annealed baseline ≥462 MPa, ≥35% elongation, 90-120 HB — documented per heat.
• Custom sizes per drawing, with in-stock diameters for fast dispatch.

Each certificate covers a different question, and DLX supplies the full set. ISO9001 governs the production management system; SGS verification supports third-party review; EN 10204 3.1 MTC documents composition and mechanical results with heat number and batch traceability; the grade standards define the material itself.

Grade selection follows the media, not a default. For alkali service and organic media, Ni200 and Ni201 are the standard choices, with Ni201 preferred where service temperature is higher. For seawater and chloride exposure, N6 offers an economical balance of purity and corrosion resistance, while Ni200 covers marine duty where chemical conditions are more aggressive. N4 (NP1) is reserved for the strictest purity requirements.

Diameter, length, straightness and surface are confirmed against your drawing before production, and tolerances are locked at that review — the same drawing standard applies from the first bar to the last.

The annealed baseline is documented per heat: at least 462 MPa tensile strength, ≥35% elongation and 90-120 HB hardness. Chemical and marine components are often formed or welded after machining, and this combination of strength and ductility keeps those operations predictable.

Annealed is the standard temper for chemical and marine components that will be formed or welded; cold-worked tempers provide higher strength for structural fasteners and load-bearing parts. Specify the target strength or hardness on the drawing and the temper is set accordingly.

Indicative FOB China reference prices for bars; final quotation per grade, size, quantity and temper.

Source: DLX product catalog. N4/N6 per GB system; Ni200/Ni201 per ASTM system.

The 10 kg minimum order for bars covers drawing setup and heat allocation, so tolerances can be locked per drawing; wire and strip products are available at 5 kg MOQ.

Quality control for bars follows the shape, not a generic checklist:

• Incoming: raw nickel verified per heat before processing.
• In-process: diameter, length and straightness checked with calibrated instruments; surface inspected along the full length.
• Final: tensile and hardness testing sampled per heat; chemical composition verified per heat.
• Documentation: EN 10204 3.1 MTC with heat number, test results and full traceability.

Ni200/Ni201 bars are manufactured and tested to ASTM B160; N4/N6 follow GB/T 4435-2010. Testing methods and acceptance criteria follow the drawing specification and applicable standards.

Straight bars are bundled and protected against transit damage; longer lengths travel in export wooden cases, seaworthy-packed for container shipment. In-stock diameters can be dispatched promptly, and production lead time is 7-15 days after drawing and grade confirmation. Every order ships with the complete export documentation set: packing list, commercial invoice and mill test certificate.

Certification is how a material earns entry into chemical plants and marine projects. Changzhou DLX Alloy Co., Ltd. has built its quality system around that requirement: ISO9001 for production management, SGS verification, and EN 10204 3.1 MTC on every shipment, so buyers can trace each bar to its heat and test results. Since 2002 the company has supplied nickel alloys to export markets where documentation is part of the product — and that discipline now underpins every bar order for chemical and marine duty.

Every delivery includes EN 10204 3.1 MTC with heat number and batch traceability, backed by ISO9001 and SGS certification. Bars meet ASTM B160 (Ni200/Ni201) and GB/T 4435-2010 (N4/N6).

Ni200 and Ni201 are the standard choices for alkali and organic media; Ni201 is preferred where service temperature is higher, and N4 (NP1) for the strictest purity requirements.

N6 offers an economical balance for seawater and chloride exposure; Ni200 covers marine duty where chemical conditions are more aggressive.

10 kg for custom bars — the minimum covers drawing setup and heat allocation so tolerances can be locked per drawing. Other pure nickel forms, such as wire and strip, are available at 5 kg MOQ.

Yes — diameter, length, straightness and surface are confirmed per drawing before production. Popular diameters are held in stock for fast dispatch.