{"id":20417,"date":"2025-01-14T11:23:00","date_gmt":"2025-01-14T03:23:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20417"},"modified":"2025-01-14T17:56:42","modified_gmt":"2025-01-14T09:56:42","slug":"4140-vs-4142","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/ja\/tool-steel\/comparison\/4140-vs-4142\/","title":{"rendered":"AISI 4140 \u5bfe 4142 \u30b9\u30c1\u30fc\u30eb: \u7279\u6027\u306e\u6bd4\u8f03"},"content":{"rendered":"<p class=\"wp-block-paragraph\">AISI 4140 \u3068 AISI 4142 \u306f\u3069\u3061\u3089\u3082\u540c\u69d8\u306e\u7279\u6027\u3092\u6301\u3064\u5408\u91d1\u92fc\u3067\u3059\u3002\u4e3b\u306a\u9055\u3044\u306f\u30014142 \u306b\u306f\u308f\u305a\u304b\u306b\u591a\u304f\u306e\u70ad\u7d20\u3068\u5c11\u91cf\u306e\u30db\u30a6\u7d20\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u30014140 \u3068\u6bd4\u8f03\u3057\u3066\u8010\u6469\u8017\u6027\u3068\u786c\u5316\u6027\u304c\u5411\u4e0a\u3057\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u4e21\u65b9\u306e\u92fc\u306f\u540c\u69d8\u306e\u7528\u9014\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u304c\u30014142 \u306f\u512a\u308c\u305f\u5f37\u5ea6\u3068\u8010\u4e45\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p><p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u3044\u60c5\u5831\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u30d7\u30ed\u306e\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u3067\u3042\u308b SteelPro Group \u304c\u3088\u308a\u8a73\u3057\u3044\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3001\u304a\u5ba2\u69d8\u306e\u30cb\u30fc\u30ba\u306b\u304a\u5fdc\u3048\u3057\u307e\u3059\u3002<\/p><h2 class=\"wp-block-heading\">4140\u304a\u3088\u30734142\u92fc\u306e\u6982\u8981<\/h2><h3 class=\"wp-block-heading\">4140 \u30b9\u30c1\u30fc\u30eb<\/h3><p class=\"wp-block-paragraph\">AISI 4140 \u92fc\u306f\u3001\u70ad\u7d20\u3001\u30af\u30ed\u30e0\u3001\u30e2\u30ea\u30d6\u30c7\u30f3\u3001\u30de\u30f3\u30ac\u30f3\u3067\u69cb\u6210\u3055\u308c\u305f\u4f4e\u5408\u91d1\u92fc\u306e\u4e00\u7a2e\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u5143\u7d20\u306b\u3088\u308a\u3001\u5f37\u5ea6\u3001\u976d\u6027\u3001\u8010\u6469\u8017\u6027\u3001\u4e2d\u7a0b\u5ea6\u306e\u8010\u8150\u98df\u6027\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u885d\u6483\u3084\u7e70\u308a\u8fd4\u3057\u8377\u91cd\u304c\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u9ad8\u5fdc\u529b\u306e\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p><ul class=\"wp-block-list\"><li>AISI 4140 \u92fc\u306f\u3001\u81ea\u52d5\u8eca\u3084\u6a5f\u68b0\u306a\u3069\u306e\u696d\u754c\u3067\u3001\u30af\u30e9\u30f3\u30af\u30b7\u30e3\u30d5\u30c8\u3001\u30c9\u30e9\u30a4\u30d6\u30b7\u30e3\u30d5\u30c8\u3001\u30ae\u30a2\u3001\u8eca\u8ef8\u3001\u6cb9\u5727\u30ed\u30c3\u30c9\u3001\u5de5\u5177\u90e8\u54c1\u306e\u88fd\u9020\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li><\/ul><h3 class=\"wp-block-heading\">4142 \u30b9\u30c1\u30fc\u30eb<\/h3><p class=\"wp-block-paragraph\">AISI 4142 \u306f\u30014140 \u3068\u6bd4\u8f03\u3057\u3066\u70ad\u7d20\u3001\u30af\u30ed\u30e0\u3001\u30e2\u30ea\u30d6\u30c7\u30f3\u306e\u542b\u6709\u91cf\u304c\u591a\u3044\u4f4e\u5408\u91d1\u92fc\u3067\u3059\u3002\u5408\u91d1\u542b\u6709\u91cf\u304c\u591a\u3044\u305f\u3081\u786c\u5316\u6027\u304c\u5411\u4e0a\u3057\u3001\u71b1\u51e6\u7406\u306b\u3088\u3063\u3066\u5f37\u5ea6\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u3001\u51e6\u7406\u8981\u4ef6\u304c\u7279\u6b8a\u306a\u305f\u3081\u3001\u8981\u6c42\u306e\u53b3\u3057\u3044\u5de5\u696d\u7528\u9014\u3084\u81ea\u52d5\u8eca\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p><ul class=\"wp-block-list\"><li>AISI 4142 \u92fc\u306f\u4e3b\u306b\u3001\u81ea\u52d5\u8eca\u3001\u822a\u7a7a\u5b87\u5b99\u3001\u91cd\u6a5f\u306a\u3069\u306e\u8981\u6c42\u306e\u53b3\u3057\u3044\u7528\u9014\u306b\u304a\u3051\u308b\u9ad8\u5f37\u5ea6\u30ae\u30a2\u3001\u30af\u30e9\u30f3\u30af\u30b7\u30e3\u30d5\u30c8\u3001\u8eca\u8ef8\u3001\u6cb9\u5727\u30ed\u30c3\u30c9\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li><\/ul><h2 class=\"wp-block-heading\">4140 vs 4142 \u5316\u5b66\u7d44\u6210<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30a8\u30ec\u30e1\u30f3\u30c8<\/strong><\/td><td><strong>4140 \u30b9\u30c1\u30fc\u30eb<\/strong><\/td><td><strong>4142 \u30b9\u30c1\u30fc\u30eb<\/strong><\/td><\/tr><tr><td>\u30ab\u30fc\u30dc\u30f3\uff08C\uff09<\/td><td>0.38-0.43%<\/td><td>0.40-0.45%<\/td><\/tr><tr><td>\u30af\u30ed\u30e0\uff08Cr\uff09<\/td><td>0.80-1.10%<\/td><td>0.80-1.10%<\/td><\/tr><tr><td>\u30de\u30f3\u30ac\u30f3 (Mn)<\/td><td>0.75-1.00%<\/td><td>0.75-1.00%<\/td><\/tr><tr><td>\u30e2\u30ea\u30d6\u30c7\u30f3 (Mo)<\/td><td>0.15-0.25%<\/td><td>0.20-0.30%<\/td><\/tr><tr><td>\u30b1\u30a4\u7d20 (Si)<\/td><td>0.15-0.35%<\/td><td>0.15-0.35%<\/td><\/tr><tr><td>\u30db\u30a6\u7d20\uff08B\uff09<\/td><td>&#8211;<\/td><td>0.001-0.005%<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">\u70ad\u7d20\u542b\u6709\u91cf<\/h3><p class=\"wp-block-paragraph\">4142 \u92fc\u306f\u30014140 \u92fc (0.38-0.43%) \u3068\u6bd4\u8f03\u3057\u3066\u3001\u70ad\u7d20\u542b\u6709\u91cf\u304c\u308f\u305a\u304b\u306b\u9ad8\u304f\u306a\u3063\u3066\u3044\u307e\u3059 (0.40-0.45%)\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u71b1\u51e6\u7406\u4e2d\u306b\u30bb\u30e1\u30f3\u30bf\u30a4\u30c8\u306a\u3069\u306e\u3088\u308a\u786c\u3044\u5fae\u7d30\u7d44\u7e54\u306e\u5f62\u6210\u304c\u4fc3\u9032\u3055\u308c\u3001\u786c\u5ea6\u3068\u5f37\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p><h3 class=\"wp-block-heading\">\u30e2\u30ea\u30d6\u30c7\u30f3\u542b\u6709\u91cf<\/h3><p class=\"wp-block-paragraph\">4142 \u92fc\u306f\u30014140 \u92fc (0.15-0.25%) \u3088\u308a\u3082\u308f\u305a\u304b\u306b\u9ad8\u3044\u30e2\u30ea\u30d6\u30c7\u30f3\u542b\u6709\u91cf (0.20-0.30%) \u3092\u6301\u3061\u3001\u71b1\u51e6\u7406\u4e2d\u306b\u92fc\u3092\u3088\u308a\u5747\u4e00\u304b\u3064\u6df1\u304f\u786c\u5316\u3055\u305b\u308b\u3053\u3068\u3067\u713c\u5165\u308c\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u307e\u305f\u3001\u92fc\u3092\u5f37\u5316\u3059\u308b\u3053\u3068\u3067\u8010\u6469\u8017\u6027\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p><h3 class=\"wp-block-heading\">\u30db\u30a6\u7d20\u542b\u6709\u91cf<\/h3><p class=\"wp-block-paragraph\">4142 \u92fc\u306b\u306f\u5c11\u91cf\u306e\u30db\u30a6\u7d20 (0.001-0.005%) \u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u92fc\u3092\u3088\u308a\u6df1\u304f\u5747\u4e00\u306b\u786c\u5316\u3055\u305b\u308b\u3053\u3068\u3067\u71b1\u51e6\u7406\u4e2d\u306e\u786c\u5316\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u901a\u5e38\u30014140 \u92fc\u306b\u306f\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p><h2 class=\"wp-block-heading\">4140\u92fc\u30684142\u92fc\u306e\u6a5f\u68b0\u7684\u7279\u6027<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong><\/td><td><strong>4140 \u30b9\u30c1\u30fc\u30eb<\/strong><\/td><td><strong>4142 \u30b9\u30c1\u30fc\u30eb<\/strong><\/td><\/tr><tr><td>\u5f15\u5f35\u5f37\u5ea6<\/td><td>655 MPa (95,000 psi)<\/td><td>690 MPa (100,000 psi)<\/td><\/tr><tr><td>\u964d\u4f0f\u5f37\u5ea6<\/td><td>415 MPa (60,000 psi)<\/td><td>450 MPa (65,000 psi)<\/td><\/tr><tr><td>\u7834\u65ad\u4f38\u5ea6<\/td><td>20-25%<\/td><td>20-25%<\/td><\/tr><tr><td>\u786c\u5ea6\uff08HB\uff09<\/td><td>197 HB<\/td><td>200 HB<\/td><\/tr><tr><td>\u885d\u6483\u976d\u6027<\/td><td>27 J (20 \u30d5\u30a3\u30fc\u30c8\u30dd\u30f3\u30c9)<\/td><td>30 J (22 \u30d5\u30a3\u30fc\u30c8\u30dd\u30f3\u30c9)<\/td><\/tr><tr><td>\u30dd\u30a2\u30bd\u30f3\u6bd4<\/td><td>0.29<\/td><td>0.29<\/td><\/tr><\/tbody><\/table><\/figure><p class=\"wp-block-paragraph\">\u4e21\u65b9 <strong>4140<\/strong> \u305d\u3057\u3066 <strong>4142 \u92fc<\/strong> \u512a\u308c\u305f\u5f37\u5ea6\u3001\u786c\u5ea6\u3001\u976d\u6027\u3092\u5099\u3048\u3001\u4e2d\u7a0b\u5ea6\u304b\u3089\u9ad8\u8ca0\u8377\u306e\u4e0b\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u9069\u5207\u306a\u71b1\u51e6\u7406\u306b\u3088\u308a\u304b\u306a\u308a\u306e\u786c\u5ea6\u3092\u9054\u6210\u3067\u304d\u307e\u3059\u304c\u30014142 \u306f\u7279\u306b\u539a\u3044\u90e8\u5206\u3067\u3088\u308a\u6df1\u3044\u786c\u5316\u3092\u63d0\u4f9b\u3059\u308b\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p><p class=\"wp-block-paragraph\">4240 \u92fc\u3068\u6bd4\u8f03\u3059\u308b\u3068\u30014142 \u306f\u70ad\u7d20\u3068\u30af\u30ed\u30e0\u306e\u542b\u6709\u91cf\u304c\u591a\u3044\u305f\u3081\u3001\u5f37\u5ea6\u3001\u786c\u5ea6\u3001\u786c\u5316\u6027\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002\u512a\u308c\u305f\u6a5f\u68b0\u7684\u7279\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u7528\u9014\u3067\u975e\u5e38\u306b\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p><h2 class=\"wp-block-heading\">4140 \u92fc\u3068 4142 \u92fc\u306e\u9577\u6240\u3068\u77ed\u6240<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30b9\u30c1\u30fc\u30eb\u30bf\u30a4\u30d7<\/strong><\/td><td><strong>\u30e1\u30ea\u30c3\u30c8<\/strong><\/td><td><strong>\u30c7\u30e1\u30ea\u30c3\u30c8<\/strong><\/td><\/tr><tr><td rowspan=\"2\">4142 \u30b9\u30c1\u30fc\u30eb<\/td><td>\u70ad\u7d20\u3068\u30af\u30ed\u30e0\u306e\u5897\u52a0\u306b\u3088\u308a\u3001\u5f37\u5ea6\u3001\u786c\u5ea6\u3001\u713c\u5165\u308c\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/td><td>4140\u3088\u308a\u3082\u9ad8\u4fa1\u3067\u3059\u3002<\/td><\/tr><tr><td>\u7279\u306b\u539a\u3044\u90e8\u5206\u3067\u306f\u3001\u8010\u6469\u8017\u6027\u304c\u5411\u4e0a\u3057\u3001\u786c\u5316\u304c\u6df1\u304f\u306a\u308a\u307e\u3059\u3002<\/td><td>4140 \u306b\u6bd4\u3079\u3066\u6a5f\u68b0\u52a0\u5de5\u304c\u56f0\u96e3\u3067\u3059\u3002<\/td><\/tr><tr><td rowspan=\"2\">4140 \u30b9\u30c1\u30fc\u30eb<\/td><td>\u5f37\u5ea6\u3001\u976d\u6027\u3001\u52a0\u5de5\u6027\u306e\u512a\u308c\u305f\u30d0\u30e9\u30f3\u30b9\u3002<\/td><td>\u7279\u306b\u539a\u3044\u90e8\u5206\u3067\u306f\u30014142 \u3088\u308a\u3082\u786c\u5316\u6027\u3068\u8010\u6469\u8017\u6027\u304c\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002<\/td><\/tr><tr><td>\u6c4e\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u30b3\u30b9\u30c8\u52b9\u7387\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">4140 \u304a\u3088\u3073 4142 \u92fc\u306e\u7570\u306a\u308b\u7528\u9014<\/h2><p class=\"wp-block-paragraph\">AISI 4140 \u3068 AISI 4142 \u306e\u7528\u9014\u306f\u975e\u5e38\u306b\u4f3c\u3066\u304a\u308a\u3001\u3069\u3061\u3089\u3082\u9ad8\u3044\u5f37\u5ea6\u3001\u976d\u6027\u3001\u8010\u6469\u8017\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u90e8\u54c1\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6750\u6599\u306f\u3001\u81ea\u52d5\u8eca\u3001\u822a\u7a7a\u5b87\u5b99\u3001\u91cd\u6a5f\u306a\u3069\u306e\u5206\u91ce\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3069\u3061\u3089\u306e\u92fc\u3082\u3001\u30ae\u30a2\u3001\u30b7\u30e3\u30d5\u30c8\u3001\u30af\u30e9\u30f3\u30af\u30b7\u30e3\u30d5\u30c8\u3001\u8eca\u8ef8\u3001\u6cb9\u5727\u30ed\u30c3\u30c9\u306a\u3069\u306e\u90e8\u54c1\u306e\u88fd\u9020\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p><p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001\u91cd\u8981\u306a\u9055\u3044\u306f\u3001\u8981\u6c42\u3055\u308c\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u7a0b\u5ea6\u306b\u3042\u308a\u307e\u3059\u3002<\/p><p class=\"wp-block-paragraph\">AISI 4140 \u306f\u30b3\u30b9\u30c8\u52b9\u7387\u304c\u9ad8\u304f\u3001\u6c4e\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u5408\u91d1\u542b\u6709\u91cf\u304c\u591a\u3044 AISI 4142 \u306f\u3001\u512a\u308c\u305f\u5f37\u5ea6\u3068\u8010\u6469\u8017\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u822a\u7a7a\u5b87\u5b99\u90e8\u54c1\u3084\u9ad8\u8010\u4e45\u6027\u30b7\u30e3\u30d5\u30c8\u306a\u3069\u3001\u8981\u6c42\u306e\u53b3\u3057\u3044\u9ad8\u6027\u80fd\u90e8\u54c1\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p><h2 class=\"wp-block-heading\">4140 \u304a\u3088\u3073 4142 \u92fc\u88fd\u54c1: \u304a\u5ba2\u69d8\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u305f\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/h2><p class=\"wp-block-paragraph\">SteelPro Group \u3067\u306f\u30014140 \u92fc\u3068 4142 \u92fc\u306e\u4e21\u65b9\u306e\u5316\u5b66\u7d44\u6210\u4ed5\u69d8\u3092\u6e80\u305f\u3059\u9ad8\u54c1\u8cea\u306e\u92fc\u88fd\u54c1\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u7a92\u5316\u3001\u713c\u920d\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u51e6\u7406\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3001\u304a\u5ba2\u69d8\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u6700\u9069\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p><p class=\"wp-block-paragraph\">\u307e\u305f\u3001 <a href=\"https:\/\/steelprogroup.com\/ja\/tool-steel\/cr12mov\/\">D2\u306e\u3088\u3046\u306a\u30ca\u30a4\u30d5\u92fc<\/a>\u512a\u308c\u305f\u5f37\u5ea6\u3001\u786c\u5ea6\u3001\u8010\u6469\u8017\u6027\u306a\u3069\u3001\u3069\u306e\u3088\u3046\u306a\u30cb\u30fc\u30ba\u306b\u3082\u5bfe\u5fdc\u3067\u304d\u308b\u5f53\u793e\u306e\u591a\u7528\u9014\u88fd\u54c1\u306f\u3001\u304a\u5ba2\u69d8\u306e\u7279\u5b9a\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>AISI 4140 \u3068 AISI 4142 \u306f\u3069\u3061\u3089\u3082\u540c\u69d8\u306e\u7279\u6027\u3092\u6301\u3064\u5408\u91d1\u92fc\u3067\u3059\u3002\u4e3b\u306a\u9055\u3044\u306f\u30014142 \u306e\u65b9\u304c\u308f\u305a\u304b\u306b [\u2026]<\/p>","protected":false},"author":12,"featured_media":20423,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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