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Knitter parts

Knitted parts typically have specific fabric structures. High-quality knitted parts usually possess durability and precise accuracy. Therefore, in manufacturing, high-quality materials are needed to produce machine components. The most commonly used steel grades are SK95, SK85, and 1085 steel.

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Steel Grade & Chemical Composition
Hardness Conversion Table

Hardened and Tempered steel
JIS	Nippon Steel	C	Si	Mn	P	S	Cu	Ni	Cr
S50C		0.47 ~ 0.53	0.15 ~ 0.35	0.60 ~ 0.90	≦0.030	≦0.035	≦0.030	≦0.20	≦0.20
S55C		0.52 ~ 0.58	0.15 ~ 0.35	0.60 ~ 0.90	≦0.030	≦0.035	≦0.030	≦0.20	≦0.20
S56C		0.60 ~ 0.70	0.15 ~ 0.35	0.60 ~ 0.90	≦0.030	≦0.035	≦0.030	≦0.20	≦0.20
SK85		0.80 ~ 0.90	0.10 ~ 0.35	0.10 ~ 0.50	≦0.030	≦0.035	≦0.030	≦0.20	≦0.20
SK95		0.90 ~ 1.00	0.10 ~ 0.35	0.10 ~ 0.50	≦0.030	≦0.035	≦0.025	≦0.25	≦0.30
SKS51		0.75 ~ 0.85	≦0.35	≦0.50	≦0.030	≦0.030	≦0.025	1.30 ~ 2.00	0.20 ~ 0.50
SKS5		0.75 ~ 0.85	≦0.35	≦0.50	≦0.030	≦0.030	≦0.025	0.70 ~ 1.30	0.20 ~ 0.50
SUP6		0.56 ~ 0.64	1.50 ~ 1.80	0.70 ~ 1.00	≦0.030	≦0.030	≦0.030

Hardened and Tempered steel		Hardness		Tensile Strength (N/mm²)
JIS	Nippon Steel	HV	HRC
S50C		320 ~ 560	33 ~ 53	1025 ~ 1950
S55C		320 ~ 560	33 ~ 53	1025 ~ 1950
S56C		320 ~ 560	33 ~ 53	1025 ~ 1950
SK85		340 ~ 580	34 ~ 54	1070 ~ 2020
SK95		340 ~ 580	34 ~ 54	1070 ~ 2020
SKS51		340 ~ 580	34 ~ 54	1070 ~ 2020
SKS5		340 ~ 580	34 ~ 54	1070 ~ 2020
SUP6		320 ~ 560	33 ~ 53	1025 ~ 1950

RECOMMENDATION

Flexible die

Hardened and Tempered steel

Hand saw

hardened tempered steel

Band saw

hardened tempered steel

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