特注鋼製部品

CNCによる鋼材の特注加工

鋼は、強度、靭性、および熱処理による性能を兼ね備えており、シャフト、ギア、工具、および荷重を支える部品に最適です。図面をお送りいただければ、材料の検討、工程計画、および明確な見積書をご提示いたします。.

材料の性能

鋼種および状態別の鋼の特性

炭素含有量、合金元素、および熱処理によって、最終的な強度、硬度、靭性、および耐摩耗性が決まります。.

密度	7.75～7.90 g/cm³
引張強度	370～2,000 MPa
降伏強度	200～1,800 MPa
硬度	120～650 HB
硬化状態	最大60～65 HRC
伸び	5–35%
熱伝導率	20～60 W/m·K

高強度熱処理可能耐摩耗性費用対効果が高い

Materials & Machining

Steel Material Selection for Custom CNC Parts

Compare common steel families by machinability, strength, heat-treatment response, wear resistance and corrosion performance.

炭素鋼合金鋼工具鋼ステンレス鋼

Cost-Effective Steel Group

炭素鋼

Carbon steel includes structural and engineering grades. It offers good availability, economical machining and grade-dependent strength.

一般的な等級

ASTM A36 AISI 1018 AISI 1045 / C45 AISI 1215

機械加工 AISI 1018 suits general machining, while 1215 supports efficient high-volume turning. AISI 1045 provides higher strength.

熱処理 AISI 1018 may be carburized. AISI 1045 supports quenching, tempering and induction hardening. A36 is primarily structural.

表面処理 Black oxide, zinc or nickel plating, phosphate coating and protective paint.

代表的な部品 Brackets, bases, shafts, pins, spacers, flanges and general machine components.

Strength & Fatigue Resistance

合金鋼

Alloy steel provides higher hardenability, fatigue resistance and load capacity for demanding mechanical parts.

一般的な等級

SAE 4140 · EN 42CrMo4 SAE 4340 · EN 34CrNiMo6 SAE 8620

機械加工 Machinability depends on hardness and supply condition. Prehardened stock requires rigid setups and suitable tooling.

熱処理 4140 and 4340 are commonly quenched and tempered. 8620 is typically carburized for a hard case and tough core.

表面処理 Nitriding, induction hardening, black oxide, zinc or nickel plating and phosphate coating.

代表的な部品 Gears, drive shafts, couplings, hubs, spindles and high-load fasteners.

Hardness & Wear Resistance

工具鋼

Tool steel is selected for hardness, wear resistance, dimensional stability and performance under impact or elevated temperatures.

一般的な等級

AISI A2 · EN 1.2363 AISI D2 · EN 1.2379 AISI H13 · EN 1.2344 AISI O1 · EN 1.2510

機械加工 Tool steel is normally rough-machined while annealed. Hardened parts may require grinding or EDM for final features.

熱処理 Hardening and tempering are grade-specific. Distortion and finishing allowance must be considered before treatment.

表面処理 Precision grinding, polishing, nitriding, PVD coating and black oxide where compatible with the selected grade.

代表的な部品 Punches, dies, mold inserts, cutting tools, gauges, fixtures and wear components.

Corrosion-Resistant Steel

ステンレス鋼

Stainless steel combines corrosion resistance with grade-dependent machinability, strength and cleanability.

一般的な等級

Type 303 / UNS S30300 / EN 1.4305 Type 304 / UNS S30400 / EN 1.4301 Type 316 / 316L 17-4 PH / UNS S17400 / EN 1.4542

機械加工 Type 303 prioritizes machinability. Types 304 and 316L require control of heat and work hardening. 17-4 PH offers higher strength.

熱処理 Austenitic 303, 304 and 316L cannot be hardened by heat treatment. 17-4 PH is strengthened through age hardening.

表面処理 Passivation, electropolishing, bead blasting, brushing and precision polishing.

代表的な部品 Valves, fittings, housings, food-equipment parts and medical or laboratory components made to the required specification.

Similar international grades are not automatically interchangeable. Confirm the governing standard, supply condition, hardness, heat treatment and certification requirements on the drawing or purchase order.

加工能力

鋼材の加工能力

見積書の検討に必要なキーのサイズおよび精度範囲。.

最大部品サイズ	3000 × 1600 × 1000 mm
機械加工後の直径	Ø1～200 mm
最大旋削長さ	1000 mm
最小肉厚	0.5 mm
標準公差	±0.05 mm
高精度な機能	±0.005 mmまで
表面粗さ	Ra 0.2～3.2 μm
被加工物の硬度	最大60 HRC