With over 20 years’pre-sales and after-sales special steel, Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. For 4140 plate, we keep above 1000tons daily stock, which is the largest stockist in Sounth China. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar.
4140 steel plate belongs to ultra-high strength steel, with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low temperature impact toughness. The 4140 flat bar is suitable for manufacturing large and medium-sized plastic moulds requiring certain strength and toughness.
Otai’s advantage:
1. There are thousands of tons of steel inventory in our warehouse, especially for 4140/42CrMo4 plate, Otai is the largest stockist in South China.
2. Small order can be received. Compared with large steel mills, MOQ is lower, which is more conducive to foreign small and medium stockers.
3. We can finish all kinds of machining process like milling, polishing, turning and other processing.
4. With independent testing equipment, including spectrometers, UT flaw detection equipment, etc., compared to traders, we can fully guarantee product quality for customers.
Customer case:
One of our customer in Vietnam purchased 1045 round steel to produce products from other suppliers, and the products cracked and collapsed during using. Due to the unstable life cycle of product parts, the customer’s production efficiency slows down, the production cost rises, and more importantly, the customer’s delivery commitment to the end user is badly affected.
In 2017, we received this customer’s question and went to Hanoi on a business trip to check the parts with quality problems. Our engineering proposed 4140 material as a substitute by checking the use environment of the parts and communicating the mechanical performance requirements with the customer’s product engineering, and introduce the advantages of 4140 in impact energy and tensile performance, Customer decided to replace 1045 with 4140. From that time, customers have been purchasing 4140 plate from us.
