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Spring steel

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Published: 30 September 2014
Fig. 106 Cold-drawn spring steel wire (0.4% C, 1.8% Si, 0.3% Mn, 1.05% Cr, 0.25% Cu, 0.55% Ni, 0.07% Ti, 0.07% V) with ferrite decarburization layer. When such raw material is quenched, the majority of the ferrite remains ferrite, which is detrimental to the product. Source: Ref 106 More
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Published: 30 September 2014
Fig. 109 Carbon restoration (a) of decarburized layer (b) of spring steel (0.4% C, 1.8% Si, 0.3% Mn, 1.05% Cr, 0.25% Cu, 0.55% Ni, 0.07% Ti, 0.07% V. Source: Ref 106 More
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Published: 31 December 2017
Fig. 9 Process of changing curvature on flat blued spring steel target (AISI-C1095, 48 to 51 HRC) surface impacted by hard cylindrical hammer (Carpenter extra, air-hardened tool steel, HRC = 62 to 64, r = 35 mm, or 1.38 in.). In terms of scale, each small vertical division is 0.508 μm (20 More
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Published: 01 January 2006
Fig. 9 Assembly of spring steel strip into a bracket at the bottom level of a two-level multiple-slide forming operation More
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Published: 01 January 1990
Fig. 2 Effect of strip thickness on the optimum hardness of spring steel strip for high-stress use. Hardness on HRC scale may be lowered 3 to 4 points for greater toughness. Instability of ductility is sometimes encountered above 57 HRC. More
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Published: 01 January 1990
Fig. 20 Relative cost of spring steel wire More
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Published: 01 November 1995
Fig. 9 Spring-steel fasteners More
Book Chapter

By Loren Godfrey
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001019
EISBN: 978-1-62708-161-0
... Abstract Steel springs are made in many types, shapes, and sizes, ranging from delicate hairsprings for instrument meters to massive buffer springs for railroad equipment. The primary focus of this article is small steel springs that are cold wound from wire. Wire springs are of four types...
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Published: 01 December 1998
Fig. 25 Examples of different degrees of decarburization in spring steels. (a) Partial decarburization of as-rolled AISI 9260 mod spring steel that was nickel plated edge protection. (b) Partial decarburization of hardened AISI 5160H spring steel whose surface was turned prior to hardening More
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Published: 01 January 1990
Fig. 15 Effect of temperature on modulus of rigidity of spring steels More
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Published: 01 January 1990
Fig. 1 Minimum tensile strength of steel spring wire. VSQ, valve-spring quality More
Book Chapter

By Mark Hayes
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002377
EISBN: 978-1-62708-193-1
...; and embrittlement or cracking. The article summarizes the methods of statistical analysis of S-N data for general comparisons of fatigue strength of spring steels. The fatigue performance of springs is illustrated by Goodman diagrams. The article also exemplifies the examination of failed springs. cracking...
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Published: 01 January 1996
Fig. 1 Scatter in the fatigue life for shot-peened carbon steel spring wire (ASTM A 227, Class II steel). It is not uncommon for some springs to survive 10 million cycles when other springs from the same batch, tested at the same time, have failed at 400,000 cycles. The S - N curve shown More
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Published: 01 January 1987
Fig. 259 Fatigue fracture in AISI 1060 steel spring wire, 4.6-mm (0.18-in) diam, originating at two or more crack nuclei at and above lower shoulder at left edge. 7× More
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Published: 01 January 1987
Fig. 261 Fatigue-fracture surface of a suspension spring of AISI 10B62 steel wire with a hardness of 460 HB. Note the fine seam (at arrow), which is the fatigue-crack origin. 2× More
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Published: 01 January 1987
Fig. 265 Fractured 13-mm ( 1 2 -in.) diam spring of AISI 10B62 steel wire with a hardness of 477 HB. Note the spiral gouges, which are screw marks that were generated during coiling. See also Fig. 266 . 2× More
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Published: 01 January 1987
Fig. 269 Fatigue-fractured spring of 5-mm (0.200-in.) diam AISI 1060 steel wire (hardness, 43 to 48 HRC). This fracture, unlike that of the similar spring in Fig. 261 , originated at the surface (see Fig. 270 ). 1.7× More
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Published: 01 January 1987
Fig. 305 Fatigue failure of an automotive engine valve spring made of a steel similar to ASTM A230. The spring was shot peened; service stresses were very high. Cause of fracture was a seam 15 μm (0.5 mils) deep. The surface defect initiated a longitudinal shear crack that propagated More
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