Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Tue, 16 Jun 2020 22:15:11 -0700 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 05H556Ql003913; Wed, 17 Jun 2020 01:05:19 -0400 Received: from outgoing-exchange-1.mit.edu (OUTGOING-EXCHANGE-1.MIT.EDU [18.9.28.15]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 05H555oY003910 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 17 Jun 2020 01:05:06 -0400 Received: from oc11exedge2.exchange.mit.edu (OC11EXEDGE2.EXCHANGE.MIT.EDU [18.9.3.18]) by outgoing-exchange-1.mit.edu (8.14.7/8.12.4) with ESMTP id 05H54DmB018241 for ; Wed, 17 Jun 2020 01:04:18 -0400 Received: from w92expo29.exchange.mit.edu (18.7.74.41) by oc11exedge2.exchange.mit.edu (18.9.3.18) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Wed, 17 Jun 2020 01:03:30 -0400 Received: from oc11exhyb8.exchange.mit.edu (18.9.1.113) by w92expo29.exchange.mit.edu (18.7.74.41) with Microsoft SMTP Server (TLS) id 15.0.1365.1; Wed, 17 Jun 2020 01:04:02 -0400 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (104.47.59.176) by oc11exhyb8.exchange.mit.edu (18.9.1.113) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Wed, 17 Jun 2020 01:04:02 -0400 Received: from DM6PR03CA0069.namprd03.prod.outlook.com (2603:10b6:5:100::46) by BYAPR01MB4135.prod.exchangelabs.com (2603:10b6:a03:12::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3088.22; Wed, 17 Jun 2020 05:04:01 +0000 Received: from DM3NAM03FT054.eop-NAM03.prod.protection.outlook.com (2603:10b6:5:100:cafe::6c) by DM6PR03CA0069.outlook.office365.com (2603:10b6:5:100::46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3109.22 via Frontend Transport; Wed, 17 Jun 2020 05:04:00 +0000 Received: from mail-ed1-f42.google.com (209.85.208.42) by DM3NAM03FT054.mail.protection.outlook.com (10.152.83.223) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3109.22 via Frontend Transport; Wed, 17 Jun 2020 05:04:00 +0000 Received: by mail-ed1-f42.google.com with SMTP id w7so935251edt.1 for ; Tue, 16 Jun 2020 22:04:00 -0700 (PDT) From: Sean Breheny To: Microcontroller discussion list - Public. Sender: "piclist-bounces@mit.edu" Date: Tue, 16 Jun 2020 22:03:47 -0700 Subject: Re: [OT] soldering mild steel sheet, galvanic corrosion? Thread-Topic: [OT] soldering mild steel sheet, galvanic corrosion? Thread-Index: AdZEZkbl0U8jj2wdTzqS9BS5JLGf3g== Message-ID: References: <009501d6441b$334bf4f0$99e3ded0$@amulvey.com> List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: <009501d6441b$334bf4f0$99e3ded0$@amulvey.com> Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of gmail.com designates 209.85.208.42 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.208.42; helo=mail-ed1-f42.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cornell.edu; s=g.20171207; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=hezDUTODdOHmijlowGNbZ/u856RqgeOJixac/gVNkvs=; b=ZLcy0GZXAQuDLy3NRmKogUR1XbcbkVQk9QxPgIpELsXJ9GHm7AW9jgyspPVXcS579T 6LH+MK5x4AptF5hgxtEQzbRXcmc4DQ8PnzMiGTmHlX6sr1t3SyhwitiAi45HS5anTgVZ hdkreC+K0WQeMjvrG6Ao3ertjaCdOIDabWKEF6z2aistygW+giWtpwrkRKz7VSD/rmiv 8MQoN4IZcbzYuhRyyHcOIRxhm9wxKP0dQgsUAX+DIvA0X8bH6Xj0p4Rgbqevzm4DcpvY 155PPPO/yooWgzf5ND1VKcKyGSS0z11PQ4yRrKHbbtKLmP/t0sqNuJDQUvPx6y7RFavP ZgZg== authentication-results: spf=pass (sender IP is 209.85.208.42) smtp.mailfrom=gmail.com; mit.edu; dkim=pass (signature was verified) header.d=cornell.edu; mit.edu; dmarc=pass action=none header.from=cornell.edu; errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:aa7:da4f:: with SMTP id w15mr5478287eds.384.1592370239339; Tue, 16 Jun 2020 22:03:59 -0700 (PDT) x-topics: [OT] x-content-filtered-by: Mailman/MimeDel 2.1.6 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Hi Jason, On Tue, Jun 16, 2020 at 5:25 PM Allen Mulvey wrote: > Most of his solder was 60% > lead and 40% tin. I used to borrow it for electronic projects. > Is that a typo? The eutectic point is at 60% tin, 40% lead (typical electronics solder). Sean --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .