01 · START WITH THE APPLICATION
Five inputs determine the right filler metal.
A classification alone does not describe the complete welding requirement. Before comparing price, establish the technical boundary of the application. That prevents a quotation from being built around an incomplete or unsuitable product description.
02 · GRADE COMPARISON
Common aluminum welding wire grades at a glance.
The table is a procurement starting point—not a welding procedure specification. Compatibility and mechanical requirements must be confirmed for the actual joint.
| Grade | Filler family | Typical base-material direction | Common purchasing context |
|---|---|---|---|
| ER1100 | Commercially pure aluminum | 1xxx-series and selected pure-aluminum work | Conductivity and corrosion-focused fabrication |
| ER4043 | Al-Si5 | Compatible 6xxx-series and cast aluminum | General fabrication and cast-to-wrought applications |
| ER4047 | Al-Si12 | Compatible Al-Si assemblies | Selected welding and brazing with higher fluidity |
| ER5087 | Al-Mg-Mn-Zr | High-strength 5xxx-series | Marine, rail and engineered structures |
| ER5183 | Al-Mg-Mn | 5083 and compatible Al-Mg alloys | Marine, tanks and high-strength fabrication |
| ER5356 | Al-Mg5 | Many 5xxx and compatible 6xxx alloys | Marine, transport and general aluminum fabrication |
03 · THE COMMON COMPARISON
ER4043 vs ER5356: how buyers should frame the decision.
Aluminum-silicon direction
Often considered for compatible 6xxx-series and cast-aluminum applications where fluidity and reduced hot-cracking sensitivity are priorities.
View ER4043 →Aluminum-magnesium direction
Often considered for compatible 5xxx/6xxx fabrication where strength, marine exposure or anodized color matching influences the choice.
View ER5356 →Selection noteDo not substitute ER4043 and ER5356 based on price alone. Base-alloy compatibility, service temperature, required properties and the qualified welding procedure should control the decision.
04 · PROCESS & SUPPLY FORM
Match the package to the welding process.
Layer-wound spool wire
Confirm wire diameter, spool dimensions, spool weight, hub format and equipment compatibility.
Straight filler rods
Confirm rod diameter, cut length, packaging quantity and the cleanliness requirements for storage.
05 · PROCUREMENT CHECKLIST
What to include in an aluminum welding wire RFQ.
A useful quotation starts with a complete requirement.
Frank Xu supports overseas buyers with grade confirmation, packaging coordination and export communication.
Discuss your product list →06 · FAQ
ご注文前によくある質問。
ER4043とER5356の主な違いは何ですか？+
ER4043は適合する6xxx系や鋳物向けのAl-Si系溶加材です。ER5356は強度、海洋環境、アルマイト後の色合わせが重要な場合に選ばれるAl-Mg系溶加材です。
1種類のアルミワイヤーですべての母材に対応できますか？+
いいえ。母材成分、必要強度、割れ感受性、腐食環境、使用温度、仕上げ条件によって適切な溶加材は変わります。
MIGワイヤーとTIG棒のどちらを注文すべきですか？+
溶接法と装置に合わせて供給形態を選びます。MIGは通常スプールワイヤー、TIGは直棒を使用します。
アルミ溶接ワイヤーのRFQに必要な情報は何ですか？+
母材合金、溶接法、分類、径、梱包、数量、適用規格、用途、仕向地、プライベートラベル要件を記載してください。