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JIS H 3300 Copper and Copper Alloy Seamless Pipes and Tubes for Plumbing/Heat Exchangers1
Copper Alloy, Copper Alloy Tubes, Heat Exchangers
EZ Steel Industrial Co., Ltd.
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Product Description JIS H 3300 Copper and Copper Alloy Seamless Pipes and Tubes for Plumbing/Heat Exchangers CategorySpecification DetailsExamples & RequirementsNotes / StandardsMaterial Codes & AlloysCommon material codes with defined chemical compositions per JIS H 3300.C1020: Oxygen-free copperC1220: Phosphorus-deoxidized copperC2801: Brass (60% Cu, 40% Zn)C4430, C6870: Aluminum brass, Arsenical brassC7060, C7150: Copper-nickel alloys (90/10, 70/30)Each material has strict chemical composition limits for copper purity and alloying elements.Manufacturing ProcessDefines the production methods and treatments.Production: Extrusion, cold drawing, or rolling.Heat Treatment: Annealing may be applied to achieve the desired temper (e.g., soft, hard).The process influences the final mechanical properties and dimensional tolerances.Dimensions & TolerancesSpecifies standard sizes and allowed deviations.Standard ranges for:- Outer Diameter (OD)- Wall Thickness (WT)- LengthTolerances for OD, WT, and straightness are defined based on the material and manufacturing method.Tolerances are tighter for cold-drawn tubes compared to extruded tubes.Mechanical PropertiesDefines performance requirements based on material and temper.Example - C1220 (Soft):- Tensile Strength: ≥ 200 MPa- Elongation: ≥ 40%Example - C2801 (Hard):- Tensile Strength: ≥ 370 MPa- Elongation: ≥ 15%Properties vary significantly between materials (e.g., pure copper vs. brass) and tempers (soft vs. hard).Inspection RequirementsMandatory quality control tests to ensure compliance.Chemical Analysis: Verify composition.Mechanical Tests: Tensile test, hardness test.Leak Tightness: Hydrostatic test or nondestructive test (e.g., eddy current).Visual Inspection: For surface defects, scratches, dents.Dimensional Checks: Verify OD, WT, length.A comprehensive set of checks to ensure quality and fitness for purpose.Surface ConditionDefines acceptability criteria for the tube's surface.Surfaces must be clean and free from cracks and excessive imperfections. Minor scratches or discoloration may be permitted within specified limits.Ensures the tube is suitable for its intended application without surface-related failures. CategoryJIS CodeCommon Name / Alloy TypeNominal Composition (Key Elements)1. Pure Copper(Cu ≥ 99.90%)C1020Oxygen-Free CopperCu ≥ 99.90% C1100Electrolytic Tough Pitch CopperCu ≥ 99.90% C1220Phosphorus-Deoxidized CopperCu + Ag ≥ 99.90%2. Brass(Copper-Zinc Alloys)C210095% Copper BrassCu 84-86%, Zn Rem. C220090% Copper BrassCu 88-91%, Zn Rem. C230085% Copper BrassCu 84-86%, Zn Rem. C240080% Copper BrassCu 78.5-81.5%, Zn Rem. C260070% Copper Brass / Cartridge BrassCu 68.5-71.5%, Zn Rem. C2680Yellow BrassCu 64-68%, Zn Rem. C270065% Copper BrassCu 63-68.5%, Zn Rem. C2720Common BrassCu 62-64%, Zn Rem. C280160% Copper Brass / Muntz MetalCu 58-61%, Zn Rem.3. Leaded Brass(Free-Cutting Brass)C3140Leaded BrassCu 87-90%, Pb 1.3-2.5%, Zn Rem. C3501Leaded BrassCu 60-63%, Pb 1.3-2.5%, Zn Rem. C3604Free-Cutting BrassCu 57-61%, Pb 1.8-3.7%, Zn Rem.4. Tin Brass & Special BrassC4430Admiralty BrassCu 70-73%, Sn 0.8-1.2%, Zn+As Rem. C4621Naval BrassCu 60-63%, Sn 0.5-1.0%, Pb ≤0.2%, Zn Rem. C6870Aluminum BrassCu 76-79%, Al 1.8-2.5%, As 0.02-0.06%, Zn Rem.5. Copper-Nickel AlloysC706090-10 Cu-NiCu 86.5-90.5%, Ni 9-11%, Fe 1-1.8%, Mn ≤1.0% C715070-30 Cu-NiCu 63-70%, Ni 29-33%, Fe 0.4-1.0%, Mn ≤1.0%6. Other Copper AlloysC5111Phosphor BronzeCu + Sn ≥ 99.5%, P 0.03-0.35% C5191Phosphor BronzeCu 93.5-95.5%, Sn 6-7%, P 0.1-0.25% Detailed Photos Packaging & Shipping Product Parameters Company Profile Certifications FAQ
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