Shock resisting steel

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Shock resisting steels are a class of tool steels designed to resist breakage by shock. Under the AISI classification system there are seven types, labeled S1 to S7.

Overview[]

Shock resisting steels are designed to have high impact resistance (toughness), along with other properties such as strength, hardness. Silicon is a common addition to this class of steels, as it provides tempering resistance, and increases toughness.[1]

Applications for shock resisting steels includes springs, as well as chisels, dies for forging, and punches.[1] S2 steel is also used to make Ball bearings for the mining industry.[2] They are also used for screwdrivers and driver bits.[3]

Type C % Si % V % Cr % Mn % Ni % Mo % W %
S1 (UNS T41901)[1][3][a] 0.40-0.55 0.15-1.20 0.15-0.30 1.00-1.80 0.10-0.40 <0.30 <0.50 1.50-3.00
S2 (UNS T41902)[1][3] 0.40-0.55 0.90-1.20 <0.50 - 0.30-0.50 <0.30 0.30-0.60 -
S3 [4] 0.50 2.00 - 0.74 - - - 1.00
S4 (UNS T41904)[1] ? ~0.4-0.65 1.75-2.25 0.35 0.35 0.60-0.90 -
S5 (UNS T41905)[1][3] 0.50-0.65 1.75-2.25 <0.35 <0.50 0.60-1.00 - 0.20-1.35 -
S6 (UNS T41906)[3] 0.40-0.50 2.00-2.50 0.20-0.40 1.20-1.50 1.20-1.50 - 0.30-0.50 -
S7 (UNS T41907)[1][3] 0.45-0.55 0.20-1.00 0.20-0.30[b] 3.00-3.50 0.20-0.90 - 1.30-1.80 -
  1. ^ Commonly known as 'tungsten chisel steel'
  2. ^ May be omitted

SVCM[]

"SVCM" redirects here. For the medical technique, see Spatial vectorcardiometry.

SVCM steel is kind of shock resisting steel.[5] SVCM steel is an alloy of carbon, silicon, chromium, magnesium, nickel, molybdenum and lead.[6] SVCM+ in addition is quenched and tempered achieving a high hardness (HRC 59).[6] SCVM+ has better torsional properties than chromium-vanadium steel (Cr-V).[7]

References[]

  1. ^ a b c d e f g Isakov, Edmund (2007), Cutting Data for Turning of Steel, Industrial Press Inc., Chapter 1 § 1.5.2 Shock-resisting tool steels. pp.82-84
  2. ^ Materials Selection for the Minerals Industry, Metallurgical Society of AIME, 1977, p. 69
  3. ^ a b c d e f "Tool Steels - Shock-Resisting Tool Steels", www.azom.com
  4. ^ Davis, Joseph R., ed. (1995), ASM Specialty Handbook: Tool Materials, p.123, Table 2.
  5. ^ "What Our Tools Are Made Out of". Olsa Tools.
  6. ^ a b "Screwdrivers | Hand Tools | Draper Tools". www.drapertools.com. Made by blending carbon, silicon, magnesium, nickel, chromium, molybdenum and lead to create a metal featuring a host of qualities including high strength and ductility
  7. ^ "Common materials for hand tools:Carbon steel & Chromium-vanadium steel". August 14, 2018.
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