K4169 master alloy bar is cast to order for foundries in Southeast Asia that need a charge addition reproducible from lot to lot, in round sections from 8.0 mm to 200 mm. The composition and the impurity limits are agreed before the melt, and the lot is released with a mill test certificate keyed to the grade and the lot number.

How the Order Is Written for a Cast Grade

A cast grade order is written around the composition rather than around a component drawing. K4169 is a designation from the cast grade series used for high-temperature alloys in the Chinese standard system, and the agreement between the two sides covers what the addition has to carry into the heat and which elements have to stay low.

Where a buyer works to a designation from another standard system, the comparison is made against the agreed composition rather than by translating one grade name into another, and that agreed composition is the item the foundry's own incoming check is measured against. In form the bar belongs with the other high temperature alloy bar grades cast at this plant, produced on the same route: vacuum melting and a composition check before bar casting into round section.

Specifications

Key Strengths

• Cast to the composition agreed before the melt, one grade per lot.

• Lot record issued with the consignment and keyed to the cast.

• Cut lengths prepared to the charging length in use at the foundry.

• Melting and casting completed at one plant, with cutting before packing.

• Export documents prepared for the port named on the enquiry.

Technical Details

Matching the Grade When a Designation Differs

Two documents can carry two different names for what is meant to be one material. The order settles that before the cast by fixing the composition and the impurity limits, so the foundry checks the material against a numeric agreement rather than against a translated grade name. If a buyer's own specification lists the grade under another system, the offer is built on the composition the buyer needs the addition to deliver into the heat.

Documents That Travel to an ASEAN Destination

A consignment moves with a mill test certificate stating the composition of the heat, a packing list carrying the case numbers, a commercial invoice and a bill of lading. Where the importer needs a certificate of origin for the ASEAN-China preferential tariff arrangements, the Form E is prepared with the shipping documents. Bars and rods of nickel alloys sit under HS 7505.12, and the subheading applied to a particular lot is confirmed with the customs broker at the destination.

Container Gateways for the Region

Container gateways serving Southeast Asia include Singapore and Port Klang, alongside Tanjung Pelepas and Laem Chabang, and freight is quoted to the port named on the enquiry rather than to a generic regional destination. The sea leg is quoted separately from the production window, so a buyer can see the cast date and the transit time as two separate items before the order is placed.

Why the Lot Number Matters on Arrival

The lot number is the thread between the cases on the quay and the cast they came from. Each case is marked with the grade and the lot number, the packing list repeats those markings, and the mill test certificate states the composition of that same heat. A consignee can therefore check what arrived against the documents in front of them, and a query raised weeks later can be answered from the lot file instead of from memory.

Castings the Grade Is Charged Into

K4169 is charged in investment casting operations for components that see high temperature in service, including turbocharger wheels and pump or valve bodies. Furnace and heat-treatment hardware is charged on the same basis. In each case the bar enters the melt as an addition, so the useful specification is the composition the casting programme has agreed rather than a set of finished-part properties.

Quality Assurance

Composition is checked against the grade agreed on the order at the melt and again on the finished lot before release, the surface is inspected for cracks and contamination, and structure uniformity is assessed where the order asks for it. The certificate issued with the lot describes the material that was packed, so it can be read against the cases at the destination and against the previous lot when a programme repeats.

References

K4169 is a designation from the cast grade series applied to high-temperature alloys in the Chinese standard system, and customs classification references heading 7505 for bars and rods of nickel alloys. Composition and impurity limits are checked against the grade agreed on the order. Service background is taken from the ASM Specialty Handbook covering nickel and cobalt alloys, with Nickel Institute publications used for elevated-temperature guidance.

Packaging & Delivery

Bar travels in rod bundles with protective wrapping inside export wooden cases marked with the grade and the lot number for the sea leg. Cutting is completed to the length on the order before packing, so a case reaches the foundry ready to be charged. Production is scheduled 15-30 days from order confirmation and freight is quoted on FOB, CFR or CIF terms against the destination named on the enquiry.

About DZX Alloy

Buyers in 60+ export countries take their melts from the Changzhou, Jiangsu plant of Jiangsu DZX Technology Co., Ltd., which has supplied 1,000+ products under ISO 9001 and SGS audited systems since 2002. A cast lot for a Southeast Asian foundry is handled by the same melt shop as the rest of the output, and the lot file stays open against the heat so a repeat consignment can be set beside the one before it.

Send the grade and the destination port, and the quotation covers the material and the freight.

FAQ

Q: Which container ports in Southeast Asia are used?
A: Gateways serving the region include Singapore and Port Klang, and freight is quoted to the port named on the enquiry.

Q: Which documents travel with a consignment?
A: A mill test certificate stating the composition of the heat, a packing list with the case numbers, a commercial invoice and a bill of lading.

Q: Is a Form E certificate of origin issued?
A: Where the importer needs one for the ASEAN-China preferential tariff arrangements, the Form E is prepared with the shipping documents for the lot.

Q: How is the grade matched when the buyer works to another standard system?
A: The offer is built on the composition and the impurity limits the addition has to deliver, so the material is checked against an agreed composition rather than against a translated grade name.

Q: How is a lot traced once it arrives?
A: The grade and the lot number are marked on the cases and repeated on the packing list, and the certificate states the composition of that same heat.

Q: How is the bar cut before shipment?
A: To the charging length in use at the foundry, whether that is a full bar or a shorter piece sized for the crucible, and the length is agreed when the order is placed.

Q: How is the production window scheduled?
A: The lot is booked on a 15-30 day window from order confirmation, with the sea leg quoted separately against the destination.

Q: Is the composition fixed before the cast?
A: Yes. The composition and the impurity limits are agreed on the order, and the melt is made to that agreement rather than to a catalogue figure.

Q: How is the bar packed for the sea leg?
A: In rod bundles with protective wrapping inside export wooden cases, labelled so the consignment can be checked against the packing list on arrival.

Q: Can freight be quoted to one nominated port?
A: Yes. Name the port on the enquiry and the freight is quoted against it, on the terms agreed with the offer.