最小折彎值 規格表
9種規格資料
普通鋼板(SPCC)
General Steel (SPCC) · 13個尺寸
熱軋薄板(SPHC)
Hot-Rolled Thin Sheet (SPHC) · 10個尺寸
熱軋鋼板(SS400)
Hot-Rolled Steel (SS400) · 15個尺寸
不鏽鋼(SUS304)
Stainless (SUS304) · 14個尺寸
不鏽鋼(SUS316)
Stainless (SUS316) · 11個尺寸
鋁(A5052)
Aluminum (A5052) · 14個尺寸
鋁合金(A6061-T6)
Aluminum (A6061-T6) · 10個尺寸
黃銅(C2801)
Brass (C2801) · 8個尺寸
銅(C1100)
Copper (C1100) · 8個尺寸
常見問題 (FAQ)
What is the minimum bend radius (R)?
The minimum inside bend radius that prevents cracking when bending sheet metal. Varies by material, thickness, and grain direction. Typical values: mild steel (SPCC) 0–0.5t, SUS304 0.5–1.0t, aluminum A5052 1.0–1.5t.
What is the relationship between bend direction and rolling direction?
Bending perpendicular to the rolling direction (grain) reduces crack risk. Bending parallel to the grain requires a larger minimum R. It is best practice to annotate both bend lines and rolling direction on drawings.