4Cr10Si2Mo (S48140/1.4731) hex socket screw
Standard: GB/T 1221-1992
Characteristics and Scope of Application:
Has a high degree of thermal work assistance, used as an intake valve for internal combustion engines and an exhaust valve for light-duty engines.
● Chemical composition:
Carbon C: 0.35~0.45
Silicon Si: 1.90~2.60
Manganese Mn: ≤ 0.70
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.035
Chromium Cr: 9.00~10.50
Nickel Ni: ≤ 0.60
Molybdenum Mo: 0.70~0.90
● Mechanical properties:
Tensile strength σ b (MPa): quenched and tempered, 2885
Conditional yield strength σ 0.2 (MPa): quenched and tempered, 2685
Elongation rate 85 (%): quenched and tempered, ≥ 10
Shrinkage rate of cross-section (%): quenched and tempered, 235
Shanghai Yaluo Precision Fastener Technology Co., Ltd. has long-term production and supply of F51 bolts, F53 bolts, F55 bolts, F60 bolts, 02Cr22Ni5Mo3N bolts, 022Cr23Ni4MoCuN bolts, and 022Cr25Ni7Mo4N bolts; F51 nut, F53 nut, F55 nut, F60 nut, 02Cr22Ni5Mo3N nut, 022Cr23Ni4MoCuN nut, 022Cr25Ni7Mo4N nut; Dual phase stainless steel fastener products including F51 screws, F53 screws, F55 screws, F60 screws, 02Cr22Ni5Mo3N screws, 022Cr23Ni4MoCuN screws, and 022Cr25Ni7Mo4N screws.
Copyright © Shanghai ATM Precision Fasteneing Technology Co., Ltd. specializes in producing fasteners
and mechanical components made of alloy steel, stainless steel, special alloys, high-temperature alloys,
and other materials. Welcome to inquire!
沪ICP备11050003号
Shanghai Public Security Registration
No. 31011402010442
