Our super duplex steel threaded rod conforms to ASTM A193 and is made from S32750 super duplex alloy. significantly higher than ordinary duplex steel rod, and provides excellent resistance to pitting corrosion in harsh environments.
We offer two surface finishes: passivation (per ASTM A967) and sandblasting to improve paint adhesion in outdoor environments.
Our threads are precision-machined: UNC threads, ensuring a tight fit with the nut. We can cut the rods to custom lengths (1 to 6 meters) using a cold cutter that doesn't weaken the material. Each rod is thread gauge checked and hardness tested before shipment.
As a Chinese manufacturer with experience supplying the EU and US marine industries, our raw materials undergo vacuum degassing to maintain low impurity levels and are tested in-house using an optical emission spectrometer (OES).
Our warehouse inventory holds 500-600 tons of bar stock, covering diameters from ¼ inch to 2.5 inches in standard lengths of 3 and 6 meters. With constantly updated inventory information, bar stock can be shipped within 5 days-critical for meeting your customers' tight project deadlines.
Orders over 60 tons receive a 6% discount, plus free passivation and 25% off ocean freight.
Our guarantee: If any Super Duplex steel threaded rod fails to meet ASTM A193 strength standards, we will replace it within 6 days and cover all shipping costs. We also lock in pricing on confirmed orders for 45 days, protecting you from sudden market price increases.
Frequently Asked Questions
Q: How long does it take to produce a custom order with special specifications?
A: It usually takes 25-30 days, depending on the complexity of the design. We'll confirm the exact lead time after evaluating your requirements.
Q: Can you provide a detailed product catalog?
A: Sure, we'll send you a digital catalog with specifications, prices, and photos via email. Just let us know your specific needs.
