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\u4e86\u89e3\u92fc\uff1a\u4ec0\u9ebc\u662f 4340 \u92fc\uff1f<\/b><\/strong><\/span><\/h1>\n

\u9019\u00a0AISI 4340 \u92fc<\/u><\/a>\u00a0\u662f\u4e00\u7a2e\u542b\u6709\u926c\u3001\u927b\u548c\u93b3\u5408\u91d1\u7684\u92fc\u3002<\/p>\n

\"\u4e86\u89e3\u92fc\u6750
\nAISI 4340 \u92fc\u7684\u5916\u89c0\u5716\u50cf<\/p>\n

\u60a8\u53ef\u80fd\u56e0\u70ba\u4ed6\u5011\u7684\u80fd\u529b\u548c\u9ad8\u5f37\u800c\u8a8d\u8b58\u4ed6\u5011\u3002\u4f46\u662f\u60a8\u53ef\u80fd\u5df2\u7d93\u8a3b\u610f\u5230\uff0c\u5408\u91d1\u548c\u92fc\u662f\u901a\u904e\u6578\u5b57\u4f86\u5340\u5206\u7684\u2014\u2014\u60a8\u77e5\u9053\u9019\u4e9b\u6578\u5b57\u662f\u4ec0\u9ebc\u610f\u601d\u55ce\uff1f<\/p>\n

AISI 4340 \u92fc\u898f\u683c\u53ca\u76f8\u95dc\u6a19\u6e96<\/strong><\/span><\/h2>\n\n\n\n\n\n
\u570b\u5bb6<\/td>\n\u7f8e\u570b<\/td>\n\u82f1\u570b<\/td>\n\u82f1\u570b<\/td>\n\u65e5\u672c<\/td>\n<\/tr>\n
\u6a19\u6e96<\/td>\nASTM A29<\/span><\/td>\nEN 10250<\/td>\nBS 970<\/span><\/td>\nJIS G4103<\/td>\n<\/tr>\n
\u6210\u7e3e<\/td>\n4340<\/td>\n36CrNiMo4\/
\n1.6511<\/td>\n
EN24\/817M40<\/td>\nSNCM 439\/SNCM8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

ASTM 4340 \u92fc\u53ca\u5176\u7b49\u6548\u7269\u5316\u5b78\u6210\u5206<\/strong><\/span><\/h2>\n\n\n\n\n\n\n\n
\u6a19\u6e96<\/td>\n\u5e74\u7d1a<\/td>\nC<\/td>\n\u9333<\/td>\n\u78f7<\/td>\n\u79d2<\/td>\n\u77fd<\/td>\n\u4f60<\/td>\n\u927b<\/td>\n\u83ab<\/td>\n<\/tr>\n
ASTM A29<\/td>\n4340<\/td>\n0.38-0.43<\/td>\n0.60-0.80<\/td>\n0.035<\/td>\n0.040<\/td>\n0.15-0.35<\/td>\n1.65-2.00<\/td>\n0.70-0.90<\/td>\n0.20-0.30<\/td>\n<\/tr>\n
EN 10250<\/td>\n36CrNiMo4\/
\n1.6511<\/td>\n
0.32-0.40<\/td>\n0.50-0.80<\/td>\n0.035<\/td>\n0.035<\/td>\n\u22660.40<\/td>\n0.90-1.20<\/td>\n0.90-1.2<\/td>\n0.15-0.30<\/td>\n<\/tr>\n
BS 970<\/td>\nEN24\/817M40<\/td>\n0.36-0.44<\/td>\n0.45-0.70<\/td>\n0.035<\/td>\n0.040<\/td>\n0.1-0.40<\/td>\n1.3-1.7<\/td>\n1.00-1.40<\/td>\n0.20-0.35<\/td>\n<\/tr>\n
JIS G4103<\/td>\nSNCM 439\/SNCM8<\/td>\n0.36-0.43<\/td>\n0.60-0.90<\/td>\n0.030<\/td>\n0.030<\/td>\n0.15-0.35<\/td>\n1.60-2.00<\/td>\n0.60-1.00<\/td>\n0.15-0.30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

AISI \u5408\u91d1 4340 \u92fc\u7684\u6a5f\u68b0\u6027\u80fd<\/strong><\/span><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6a5f\u68b0\u6027\u80fd\uff08\u71b1\u8655\u7406\u689d\u4ef6\uff09<\/td>\n\u72c0\u6cc1<\/td>\n\u88c1\u5b9a\u90e8\u5206
\n\u6beb\u7c73<\/td>\n
\u6297\u62c9\u5f37\u5ea6 MPa<\/td>\n\u5c48\u670d\u5f37\u5ea6
\n\u5146\u5e15<\/td>\n
\u85dd\u9f8d\u3002
\n%<\/td>\n
\u4f0a\u4f50\u5fb7\u885d\u64ca
\n\u0134<\/td>\n
\u5e03\u6c0f\u786c\u5ea6\u8a08
\n\u786c\u5ea6<\/td>\n<\/tr>\n
\u5678<\/td>\n250<\/td>\n850-1000<\/td>\n\u7b2c635\u7ae0<\/td>\n13<\/td>\n40<\/td>\n248-302<\/td>\n<\/tr>\n
\u5678<\/td>\n150<\/td>\n850-1000<\/td>\n\u7b2c665\u7ae0<\/td>\n13<\/td>\n54<\/td>\n248-302<\/td>\n<\/tr>\n
\u4f60<\/td>\n100<\/td>\n930-1080<\/td>\n\u7b2c740\u7ae0<\/td>\n12<\/td>\n47<\/td>\n269-331<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
\u4f0f<\/td>\n63<\/td>\n1000-1150<\/td>\n\u7b2c835\u7ae0<\/td>\n12<\/td>\n47<\/td>\n293-352<\/td>\n<\/tr>\n
\u5bec<\/td>\n30<\/td>\n1080-1230<\/td>\n925<\/td>\n11<\/td>\n41<\/td>\n311-375<\/td>\n<\/tr>\n
X<\/td>\n30<\/td>\n1150-1300<\/td>\n1005<\/td>\n10<\/td>\n34<\/td>\n341-401<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
\u662f<\/td>\n30<\/td>\n1230-1380<\/td>\n1080<\/td>\n10<\/td>\n24<\/td>\n363-429<\/td>\n<\/tr>\n
Z<\/td>\n30<\/td>\n1555-<\/td>\n1125<\/td>\n5<\/td>\n10<\/td>\n444-<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u71b1\u6027\u80fd<\/strong><\/span><\/h2>\n\n\n\n\n\n
\u7279\u6027<\/td>\n\u516c\u5236<\/td>\n\u5e1d\u570b<\/td>\n<\/tr>\n
\u71b1\u81a8\u8139\u4fc2\u6578\uff0820\u00b0C\/68\u00b0F\uff0c\u8a66\u6a23\u6cb9\u786c\u5316\uff0c600\u00b0C\uff081110\u00b0F\uff09\u56de\u706b<\/td>\n12.3 \u5fae\u7c73\/\u7c73\u00b0C<\/td>\n6.83 \u5fae\u82f1\u5bf8\/\u82f1\u5bf8\u00b0F<\/td>\n<\/tr>\n
\u5c0e\u71b1\u4fc2\u6578\uff08\u5178\u578b\u92fc\u6750\uff09<\/td>\n44.5 \u74e6\/\u7c73\u00b7K<\/td>\n309 BTU \u82f1\u5bf8\/\u5c0f\u6642.ft\u00b2.\u00b0F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u70ba\u4ec0\u9ebc\u662f\u201c4340\uff1f\u201d<\/b><\/strong><\/span><\/h2>\n

\u5728 SAE \u548c AISI \u7de8\u865f\u7cfb\u7d71\u4e2d\uff0c\u7b2c\u4e00\u500b (1\u82f1\u77f3<\/sup>) \u92fc\u7684\u6578\u5b57\u4ee3\u8868\u91d1\u5c6c\u6240\u5c6c\u7684\u985e\u5225\u3002<\/p>\n

1 \u4ee3\u8868\u78b3\u92fc\uff0c2 \u4ee3\u8868\u93b3\u92fc\uff0c\u4f9d\u6b64\u985e\u63a8\u3002\u6578\u5b57\u56db (4) \u8868\u793a\u92fc\u662f\u4e00\u7a2e\u926c\u92fc\u3002<\/p>\n

\u7136\u5f8c\uff0c\u7b2c\u4e8c\u500b\uff082nd<\/sup>) \u6578\u5b57\u4ee3\u8868\u4e3b\u8981\u5143\u7d20\u7684\u5b58\u5728\u3002\u9019\u4e9b\u4e3b\u8981\u5143\u7d20\u6703\u5f71\u97ff\u548c\u6539\u8b8a\u92fc\u7684\u6027\u80fd\u548c\u6574\u9ad4\u7279\u6027\u3002<\/p>\n

\u5728 4340 \u7684\u60c5\u6cc1\u4e0b\uff0c\u9019\u610f\u5473\u8457\u5b58\u5728\u4e09 (3) \u500b\u5143\u7d20\uff0c\u5b83\u5011\u5305\u62ec\u93b3\u3001\u927b\u548c\u926c\u3002<\/p>\n

\u6700\u5f8c\uff0c\u7d50\u5c3e\u6578\u5b57\u6216\u6700\u5f8c\u5169 (2) \u4f4d\u6578\u5b57\u4ee3\u8868 0.01% \u8655\u7684\u78b3\u6fc3\u5ea6\u6c34\u5e73\u3002\u56e0\u6b64\uff0c\u57284340\u7684\u60c5\u6cc1\u4e0b\uff0c\u5176\u4e2d\u7684\u78b3\u542b\u91cf\u70ba0.40%\u3002<\/p>\n

\u800c\u5df2\uff01\u9019\u5c31\u662f AISI 4340 \u92fc\u7684\u542b\u7fa9\uff0c\u9019\u5c31\u662f\u5b83\u8207\u5176\u4ed6\u92fc\u7684\u4e0d\u540c\u4e4b\u8655\uff01<\/p>\n

SAE 4340\u92fc\u662f\u4e00\u7a2e\u9ad8\u5f37\u5ea6\u5408\u91d1\u92fc\uff0c\u5e38\u7528\u65bc\u822a\u7a7a\u822a\u5929\u5de5\u696d\u3002\u5b83\u4ee5\u5176\u51fa\u8272\u7684\u97cc\u6027\u548c\u5f37\u5ea6\u91cd\u91cf\u6bd4\u800c\u805e\u540d\u3002\u6b64\u5916\uff0cSAE 4340 \u92fc\u5177\u6709\u826f\u597d\u7684\u5ef6\u5c55\u6027\uff0c\u4f7f\u5176\u9069\u7528\u65bc\u5ee3\u6cdb\u7684\u61c9\u7528\u9818\u57df\u3002\u9019\u7a2e\u985e\u578b\u7684\u92fc\u901a\u5e38\u7528\u65bc\u88fd\u9020\u98db\u6a5f\u96f6\u4ef6\u548c\u5176\u4ed6\u95dc\u9375\u90e8\u4ef6\u3002<\/p>\n

\u4ec0\u9ebc\u662f 4340 \u92fc\u7684\u7279\u6027\uff1f<\/span><\/h2>\n

4340\u92fc\u662f\u4e00\u7a2e\u927b\u926c\u5408\u91d1\u92fc\uff0c\u5177\u6709\u51fa\u8272\u7684\u6297\u62c9\u5f37\u5ea6\u548c\u885d\u64ca\u5f37\u5ea6\u3002\u926c\u7684\u6dfb\u52a0\u4f7f 4340 \u7684\u5f37\u5ea6\u512a\u65bc\u5176\u4ed6\u92fc\u7a2e\uff0c\u800c\u927b\u5247\u63d0\u9ad8\u4e86\u6dec\u900f\u6027\u3001\u8010\u78e8\u6027\u548c\u8010\u78e8\u6027\u3002<\/p>\n

4340\u53ef\u4ee5\u9032\u884c\u71b1\u8655\u7406\u4ee5\u7372\u5f97\u5ee3\u6cdb\u7684\u6a5f\u68b0\u6027\u80fd\uff0c\u4e26\u4e14\u7d93\u5e38\u7528\u65bc\u9700\u8981\u9ad8\u5f37\u5ea6\u548c\u97cc\u6027\u7684\u61c9\u7528\u4e2d\u3002<\/p>\n

4340 \u6709\u591a\u7a2e\u5c3a\u5bf8\u548c\u5f62\u72c0\u53ef\u4f9b\u9078\u64c7\uff0c\u4f7f\u5176\u6210\u70ba\u5404\u7a2e\u61c9\u7528\u7684\u7d55\u4f73\u9078\u64c7\u3002\u6709\u95dc 4340 \u92fc\u7279\u6027\u548c\u53ef\u7528\u6027\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8acb\u806f\u7e6b\u60a8\u7576\u5730\u7684\u91d1\u5c6c\u4f9b\u61c9\u5546\u3002<\/p>\n

4340 \u92fc\u7684\u786c\u5ea6\u7b49\u7d1a\u662f\u591a\u5c11\uff1f<\/b><\/strong><\/span><\/h2>\n

\u7531\u65bc 4340 \u92fc\u4ee5\u5176\u97cc\u6027\u800c\u805e\u540d\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u671f\u671b\u7372\u5f97\u9ad8\u9054 HRC 62 \u6216 600 \u81f3 650 HB \u7684\u8868\u9762\u786c\u5ea6\u6c34\u5e73\u3002<\/p>\n

\"4340\u92fc\u7684\u786c\u5ea6\u7b49\u7d1a\u662f\u591a\u5c11
\n4340 \u92fc\u5f88\u786c\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u5c07\u5176\u7528\u65bc\u5ee3\u6cdb\u7684\u61c9\u7528<\/p>\n

\u5982\u679c\u60a8\u8981\u751f\u7522\u5200\u7247\u3001\u5200\u5177\u548c\u5176\u4ed6\u591a\u7528\u9014\u5de5\u5177\uff0c\u9019\u7a2e\u786c\u5ea6\u6c34\u5e73\u5df2\u7d93\u5f88\u6709\u6548\u3002<\/p>\n

AISI 4340 \u5728\u4ec0\u9ebc\u6eab\u5ea6\u4e0b\u7194\u5316\uff1f<\/b><\/strong><\/span><\/h2>\n

AISI 4340 \u92fc\u7684\u7194\u9ede\u70ba 1,427 \u651d\u6c0f\u5ea6\u6216\u7d04 2,600 \u83ef\u6c0f\u5ea6\u3002<\/p>\n

\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u9700\u8981\u9ad8\u65bc\u9019\u4e9b\u6eab\u5ea6\uff0c4340 \u92fc\u53ef\u80fd\u4e0d\u662f\u60a8\u7684\u6700\u4f73\u9078\u64c7\uff0c\u56e0\u70ba\u5b83\u5011\u6703\u7194\u5316\u3002<\/p>\n

AISI 4340 \u92fc\u662f\u4e0d\u92b9\u92fc\u7684\u4e00\u7a2e\u55ce\uff1f<\/b><\/strong><\/span><\/h2>\n

AISI 4340 \u662f\u4e00\u7a2e\u542b\u6709\u5927\u91cf\u927b\u7684\u926c\u92fc\u3002<\/p>\n

\"\u662f
\n\u60a8\u53ef\u4ee5\u5c07 4340 \u92fc\u8996\u70ba\u4e00\u7a2e\u4e0d\u92b9\u92fc<\/p>\n

\u7531\u65bc\u927b\u662f\u4f7f\u92fc\u4e0d\u93fd\u7684\u539f\u56e0\uff0c\u56e0\u6b64\uff0c\u6211\u5011\u53ef\u4ee5\u5f97\u51fa\u7d50\u8ad6\uff0cAISI 4340 \u92fc\u662f\u4e0d\u93fd\u7684<\/p>\n

4140 \u548c 4340 \u92fc\u6709\u4ec0\u9ebc\u5340\u5225\uff1f<\/b><\/strong><\/span><\/h2>\n

4340 \u548c 4140 \u92fc\u662f\u5169 (2) \u7a2e\u6700\u5e38\u898b\u7684\u92fc\u7a2e\u3002\u5b83\u5011\u7528\u65bc\u4e0d\u540c\u985e\u578b\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u4e26\u61c9\u7528\u65bc\u5168\u7403\u591a\u500b\u4f01\u696d\u548c\u884c\u696d\u3002<\/p>\n

\u4f46\u662f\uff0c\u5b83\u5011\u6709\u4f55\u4e0d\u540c\uff1f\u662f\u4ec0\u9ebc\u8b93 AISI 4340 \u548c 4140 \u92fc\u4e0d\u540c\uff1f\u73fe\u5728\u6211\u5011\u77e5\u9053\u9019\u4e9b\u6578\u5b57\u7684\u771f\u6b63\u542b\u7fa9\uff0c\u6211\u5011\u5f88\u5bb9\u6613\u8b58\u5225\u548c\u5340\u5206 4340 \u548c 4140\u3002<\/p>\n

\u5316\u5b78\u6210\u5206<\/b><\/strong><\/h3>\n

\u96d6\u7136\u5169\u7a2e\u92fc\u7684\u78b3\u542b\u91cf\u76f8\u540c\uff0c\u4f46\u5b83\u5011\u5728\u5143\u7d20\u548c\u5316\u5b78\u7269\u8cea\u7684\u6210\u5206\u4e0a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n

\u4f8b\u5982\uff0c4140 \u4e0d\u542b\u93b3\uff0c\u800c 4340 \u542b\u6709\u7d04 1.82% \u7684\u93b3\uff0c\u9019\u5df2\u7d93\u88ab\u8a8d\u70ba\u662f\u9ad8\u7684\u3002<\/p>\n

\u61c9\u7528<\/b><\/strong><\/h3>\n

\u7531\u65bc\u5176\u9748\u6d3b\u6027\u548c\u591a\u529f\u80fd\u6027\uff0c\u00a0AISI 4140 \u92fc<\/u><\/a>\u00a0\u662f\u4e00\u7a2e\u901a\u5e38\u7528\u65bc\u822a\u7a7a\u3001\u822a\u5929\u548c\u570b\u9632 (ASD) \u884c\u696d\u7684\u92fc\u6750\u3002\u4e0d\u50c5\u5982\u6b64\uff0c\u60a8\u9084\u53ef\u4ee5\u5728\u6c7d\u8eca\u3001\u77f3\u6cb9\u548c\u5929\u7136\u6c23\u884c\u696d\u4ee5\u53ca\u8fb2\u696d\u884c\u696d\u4e2d\u4f7f\u7528\u5b83\u3002<\/p>\n

\u53e6\u4e00\u65b9\u9762\uff0c4340 \u92fc\u4e3b\u8981\u7528\u65bc\u91cd\u8f09\u61c9\u7528\uff0c\u4f8b\u5982\u9ad8\u61c9\u529b\u548c\u9ad8\u885d\u64ca\u60c5\u6cc1\u3001\u50b3\u52d5\u90e8\u4ef6\u3001\u767c\u52d5\u6a5f\u548c\u8f49\u5b50\u7b49\u3002<\/p>\n

\u7279\u6027<\/b><\/strong><\/h3>\n

AISI 4340 \u92fc\u901a\u904e\u00a0\u6dec\u706b<\/u><\/a>\u00a0\u548c\u00a0\u56de\u706b<\/u><\/a>\uff0c\u56e0\u6b64\uff0c\u60a8\u53ef\u4ee5\u8a8d\u70ba\u5b83\u5c6c\u65bc\u4e2d\u7b49\u8cea\u91cf\u7684\u78b3\u3002\u53e6\u4e00\u65b9\u9762\uff0c4140 \u92fc\u4ee5\u5176\u6297\u8150\u8755\u80fd\u529b\u3001\u9ad4\u8cbc\u7684\u5f37\u5ea6\u4ee5\u53ca\u6297\u78e8\u640d\u548c\u78e8\u640d\u80fd\u529b\u800c\u805e\u540d\u3002<\/p>\n

4340 \u92fc\u6709\u54ea\u4e9b\u61c9\u7528\uff1f<\/b><\/strong><\/span><\/h2>\n

AISI 4340 \u92fc\u5728\u5f37\u5ea6\/\u97cc\u6027\u548c\u5ef6\u5c55\u6027\u4e4b\u9593\u201c\u5e7e\u4e4e\u201d\u5b8c\u7f8e\u5e73\u8861\uff0c\u4f7f\u5176\u6210\u70ba\u53ef\u7528\u65bc\u88fd\u9020\u767c\u52d5\u6a5f\u3001\u69cd\u652f\u96f6\u4ef6\u3001\u9f52\u8f2a\u7b49\u7684\u6700\u4f73\u92fc\u6750\u985e\u578b\u4e4b\u4e00\u3002<\/p>\n

”4340\u92fc\u7684\u61c9\u7528\u6709\u54ea\u4e9b4340 \u662f\u4ec0\u9ebc\u92fc\u6750\uff1f<\/b><\/strong><\/span><\/h2>\n

4340\u662f\u4e00\u7a2e\u5177\u6709\u4e2d\u78b3\u548c\u4f4e\u5408\u91d1\u92fc\u7b49\u7d1a\u7684\u92fc\u7a2e\u3002\u9019\u7a2e\u7279\u6b8a\u7684\u7b49\u7d1a\u56e0\u5176\u5728\u5f37\u5ea6\u548c\u97cc\u6027\u65b9\u9762\u7684\u5e73\u8861\u800c\u5ee3\u53d7\u6b61\u8fce\u3002<\/p>\n

\u60a8\u901a\u5e38\u6703\u6536\u5230\u8655\u65bc\u56de\u706b\u548c\u786c\u5316\u72c0\u614b\u7684 4340 \u92fc\u3002\u9019\u4f7f\u5f97\u6297\u62c9\u5f37\u5ea6\u7bc4\u570d\u5f9e 930 \u5230 1,080 MPa\u3002<\/p>\n

\u4f7f\u7528 4340 \u92fc\u7684\u884c\u696d<\/b><\/strong><\/span><\/h2>\n

\u6709\u8a31\u591a\u696d\u52d9\u90e8\u9580\u548c\u884c\u696d\u767c\u73fe\u81ea\u5df1\u9700\u8981\u4f7f\u7528 4340 \u5408\u91d1\u92fc\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u9019\u4e9b\u884c\u696d\u4e2d\u6700\u5e38\u898b\u7684\uff1a<\/p>\n