Knowledge (XXG)

41xx steel

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of the surface. The core of the material retains its bulk properties, while the outer surface is significantly hardened to reduce wear and tear. This makes this grade of steel an excellent material for uses such as
870:"Online Metal Store | Small Quantity Metal Orders | Metal Cutting, Sales & Shipping | Buy Steel, Aluminum, Copper, Brass, Stainless | Metal Product Guides at OnlineMetals.com" 134:. 4150 stands out as being one of the steels accepted for use in M16 rifle and M4 carbine barrels by the United States military. These steels are also used in 523:
The carbon composition of the alloy is denoted by the last two digits of the SAE specification number, in hundredths of a percent.
38: 111: 847: 573: 600: 81: 99:
While these grades of steel do contain chromium, it is not in great enough quantities to provide the
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parts and therefore 41xx grade structural tubing is sometimes referred to as "aircraft tubing".
546: 152: 45: 34: 957: 104: 663: 563: 80:, and similar). They have an excellent strength to weight ratio and are considerably 951: 667: 115: 93: 676: 596: 119: 901:. Note: "For bar products; plate, sheet and tubing may be slightly different." 680: 177: 162: 53: 172: 131: 100: 17: 157: 135: 127: 85: 49: 662:
One of the characteristics of this class of steel is the ability to be
195: 186: 89: 56:, and as a result these materials are often informally referred to as 167: 123: 92:, requiring thermal treatment both before and after welding to avoid 933: 42: 672: 110:
Examples of applications for 4130, 4140, and 4145 include
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4140 Steel (Quenched and Tempered) Mechanical Properties
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for transportation of pressurized gases, firearm parts,
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Family of steel grades rich in molybdenum and chromium
533: 88:than standard 1020 steel, but are not easily 8: 913: 911: 909: 907: 891: 889: 919:Central Steel & Wire Company Catalog 897:Central Steel & Wire Company Catalog 693: 145: 860: 743:150–170 ksi (1,000–1,200 MPa) 740:160–190 ksi (1,100–1,300 MPa) 516: 60:steel (common variant stylings include 746:130–160 ksi (900–1,100 MPa) 7: 752:109–131 ksi (750–900 MPa) 749:116–138 ksi (800–950 MPa) 622:105–120 ksi (720–830 MPa) 642:90–110 ksi (620–760 MPa) 605:90–100 ksi (620–690 MPa) 579:85–110 ksi (590–760 MPa) 25: 921:(2006–2008 ed.), p. 260 899:(2006–2008 ed.), p. 246 645:65–75 ksi (450–520 MPa) 625:85–95 ksi (590–660 MPa) 608:60–70 ksi (410–480 MPa) 582:70–85 ksi (480–590 MPa) 147:Alloy composition by weight (%) 190: 181: 39:Society of Automotive Engineers 1: 850:, not a member of this series 832:26 ft⋅lbf (35 J) 772:73 ksi (500 MPa) 763:109 ksi (750 MPa) 760:130 ksi (900 MPa) 974: 829:26 ft⋅lbf (35 J) 826:26 ft⋅lbf (35 J) 823:26 ft⋅lbf (35 J) 769:80 ksi (550 MPa) 766:94 ksi (650 MPa) 592: 513: 556:Elongation at fracture, 535:Mechanical properties 37:, as specified by the 817:Impact Strength (J) ≥ 658:Other characteristics 874:www.onlinemetals.com 757:Yield Strength (Min) 639:Hot rolled, annealed 619:Cold drawn, annealed 103:resistance found in 536: 148: 777:Elongation (% Min) 534: 146: 836: 835: 797:Reduction (% Min) 732:100 < t ≤ 160 712:160 < d ≤ 250 655: 654: 532: 531: 112:structural tubing 16:(Redirected from 965: 942: 941: 930: 924: 922: 915: 902: 900: 893: 884: 883: 881: 880: 868:Metals, Online. 865: 737:Tensile Strength 709:100 < d ≤ 160 694: 547:Tensile strength 537: 524: 521: 192: 183: 149: 130:components, and 35:SAE steel grades 21: 973: 972: 968: 967: 966: 964: 963: 962: 948: 947: 946: 945: 932: 931: 927: 917: 916: 905: 895: 894: 887: 878: 876: 867: 866: 862: 857: 844: 838: 729:60 < t ≤ 100 706:40 < d ≤ 100 689: 660: 562: 557: 528: 527: 522: 518: 144: 105:stainless steel 33:is a family of 28: 23: 22: 15: 12: 11: 5: 971: 969: 961: 960: 950: 949: 944: 943: 925: 903: 885: 859: 858: 856: 853: 852: 851: 843: 840: 834: 833: 830: 827: 824: 821: 818: 814: 813: 810: 807: 804: 801: 798: 794: 793: 790: 787: 784: 781: 778: 774: 773: 770: 767: 764: 761: 758: 754: 753: 750: 747: 744: 741: 738: 734: 733: 730: 727: 726:20 < t ≤ 60 724: 721: 718: 714: 713: 710: 707: 704: 703:16 < d ≤ 40 701: 698: 688: 685: 659: 656: 653: 652: 649: 646: 643: 640: 637: 633: 632: 629: 626: 623: 620: 616: 615: 612: 609: 606: 603: 594: 590: 589: 586: 583: 580: 577: 571: 567: 566: 559: 558:2-inch gauge 554: 552:Yield strength 549: 544: 541: 530: 529: 526: 525: 515: 514: 511: 510: 507: 504: 501: 498: 495: 492: 489: 485: 484: 481: 478: 475: 472: 469: 466: 463: 459: 458: 455: 452: 449: 446: 443: 440: 437: 433: 432: 429: 426: 423: 420: 417: 414: 411: 407: 406: 403: 400: 397: 394: 391: 388: 385: 381: 380: 377: 374: 371: 368: 365: 362: 359: 355: 354: 351: 348: 345: 342: 339: 336: 333: 329: 328: 325: 322: 319: 316: 313: 310: 307: 303: 302: 299: 296: 293: 290: 287: 284: 281: 277: 276: 273: 270: 267: 264: 261: 258: 255: 251: 250: 247: 244: 241: 238: 235: 232: 229: 225: 224: 221: 218: 215: 212: 209: 206: 203: 199: 198: 193: 184: 175: 170: 165: 160: 155: 143: 140: 116:bicycle frames 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 970: 959: 956: 955: 953: 939: 938:steel-bar.com 935: 929: 926: 920: 914: 912: 910: 908: 904: 898: 892: 890: 886: 875: 871: 864: 861: 854: 849: 846: 845: 841: 839: 831: 828: 825: 822: 819: 816: 815: 811: 808: 805: 802: 799: 796: 795: 791: 788: 785: 782: 779: 776: 775: 771: 768: 765: 762: 759: 756: 755: 751: 748: 745: 742: 739: 736: 735: 731: 728: 725: 723:8 < t ≤ 20 722: 719: 716: 715: 711: 708: 705: 702: 699: 696: 695: 692: 686: 684: 682: 678: 674: 669: 668:carburization 665: 664:case hardened 657: 650: 647: 644: 641: 638: 635: 634: 630: 627: 624: 621: 618: 617: 613: 610: 607: 604: 602: 598: 595: 591: 587: 584: 581: 578: 575: 572: 569: 568: 565: 560: 555: 553: 550: 548: 545: 542: 539: 538: 520: 517: 512: 508: 505: 502: 499: 496: 493: 490: 487: 486: 482: 479: 476: 473: 470: 467: 464: 461: 460: 456: 453: 450: 447: 444: 441: 438: 435: 434: 430: 427: 424: 421: 418: 415: 412: 409: 408: 404: 401: 398: 395: 392: 389: 386: 383: 382: 378: 375: 372: 369: 366: 363: 360: 357: 356: 352: 349: 346: 343: 340: 337: 334: 331: 330: 326: 323: 320: 317: 314: 311: 308: 305: 304: 300: 297: 294: 291: 288: 285: 282: 279: 278: 274: 271: 268: 265: 262: 259: 256: 253: 252: 248: 245: 242: 239: 236: 233: 230: 227: 226: 222: 219: 216: 213: 210: 207: 204: 201: 200: 197: 194: 188: 185: 179: 176: 174: 171: 169: 166: 164: 161: 159: 156: 154: 151: 150: 141: 139: 137: 133: 129: 125: 121: 117: 113: 108: 106: 102: 97: 95: 94:cold cracking 91: 87: 83: 79: 75: 71: 67: 63: 59: 55: 51: 47: 44: 40: 36: 32: 19: 937: 934:"4140 Steel" 928: 918: 896: 877:. Retrieved 873: 863: 837: 690: 661: 576:, normalized 519: 109: 98: 77: 73: 69: 65: 61: 57: 30: 29: 681:crankshafts 677:piston pins 120:gas bottles 62:chrome-moly 879:2016-06-16 855:References 848:4116 Krupp 687:4140 Steel 597:Hot rolled 574:Cold drawn 561:Hardness, 543:Condition 509:0.15–0.35 483:0.15–0.35 457:0.15–0.35 431:0.15–0.35 405:0.15–0.35 379:0.15–0.35 353:0.15–0.35 327:0.15–0.35 301:0.15–0.35 275:0.15–0.35 249:0.15–0.35 223:0.15–0.35 142:Properties 132:roll cages 54:molybdenum 31:41xx steel 18:4130 steel 717:Thickness 631:B 96–100 540:Material 500:0.75–1.00 497:0.56–0.64 494:0.25–0.35 491:0.70–0.90 474:0.75–1.00 471:0.48–0.53 468:0.15–0.25 465:0.80–1.10 448:0.75–1.00 445:0.45–0.50 442:0.15–0.25 439:0.80–1.10 422:0.75–1.00 419:0.43–0.48 416:0.15–0.25 413:0.80–1.10 396:0.75–1.00 393:0.40–0.45 390:0.15–0.25 387:0.80–1.10 370:0.75–1.00 367:0.38–0.43 364:0.15–0.25 361:0.80–1.10 344:0.70–0.90 341:0.35–0.40 338:0.15–0.25 335:0.80–1.10 318:0.70–0.90 315:0.33–0.38 312:0.15–0.25 309:0.80–1.10 292:0.40–0.60 289:0.28–0.33 286:0.15–0.25 283:0.80–1.10 266:0.75–1.00 263:0.18–0.23 260:0.20–0.30 257:0.45–0.65 240:0.90–1.20 237:0.18–0.23 234:0.13–0.20 231:0.40–0.60 214:0.70–0.90 211:0.18–0.23 208:0.08–0.15 205:0.40–0.60 153:SAE grade 101:corrosion 952:Category 842:See also 697:Diameter 651:B 90–96 614:B 90–95 601:annealed 588:B 90–96 564:Rockwell 136:aircraft 128:flywheel 82:stronger 66:cro-moly 58:chromoly 50:chromium 48:include 46:elements 43:Alloying 78:CR-MOLY 41:(SAE). 958:Steels 700:d ≤ 16 679:, and 124:clutch 90:welded 86:harder 720:t ≤ 8 673:gears 648:20–30 628:15–25 611:20–30 585:20–30 506:0.040 503:0.035 480:0.040 477:0.035 454:0.040 451:0.035 428:0.040 425:0.035 402:0.040 399:0.035 376:0.040 373:0.035 350:0.040 347:0.035 324:0.040 321:0.035 298:0.040 295:0.035 272:0.040 269:0.035 246:0.040 243:0.035 220:0.040 217:0.035 636:4150 593:4142 570:4130 488:4161 462:4150 436:4147 410:4145 384:4142 358:4140 332:4137 306:4135 280:4130 254:4121 228:4120 202:4118 191:max. 182:max. 126:and 84:and 74:CRMO 70:CrMo 52:and 812:55 792:14 666:by 954:: 936:. 906:^ 888:^ 872:. 809:50 806:50 803:45 800:40 789:13 786:12 783:11 780:10 683:. 675:, 599:, 196:Si 189:, 180:, 173:Mn 163:Mo 158:Cr 118:, 114:, 107:. 96:. 76:, 72:, 68:, 64:, 940:. 923:. 882:. 820:- 187:S 178:P 168:C 20:)

Index

4130 steel
SAE steel grades
Society of Automotive Engineers
Alloying
elements
chromium
molybdenum
stronger
harder
welded
cold cracking
corrosion
stainless steel
structural tubing
bicycle frames
gas bottles
clutch
flywheel
roll cages
aircraft
SAE grade
Cr
Mo
C
Mn
P
S
Si
Tensile strength
Yield strength

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