Name: 41CrS4 Cold-drawn steel wire
Brand: Shanghai Creation Group Co., Ltd.

1. Combinations of delivery conditions

Table 1 Combinations of delivery conditions, product shapes, and conformity requirements

Table 2 Surface quality in delivery condition

Oberflächenbeschaffenheit im Lieferzustand		Symbol	Bar	Rolled wire	Wire
Falls nicht anders vereinbart	hot-rolled	none or +AR	X	X	-
Besonderer Oberflachenzustand,der nach Vereinbarung geliefert wird	cold-drawn	+C	-	-	X
	after-drawn	+LC	X	-	X
	rolled peeled	+PE	X	X	X

2. Chemical composition

Table 3 Chemical composition of non-boron steel grades, cast analysis, mass fraction (%)

Steel grade		C b	Si max.a	Mn	P max	S		Cr	Mo	CNi max.	Cu Max.
Abbreviated name	Material number	C b	Si max.a	Mn	P max	S		Cr	Mo	CNi max.	Cu Max.
38Cr2 46Cr2 34Cr4 37Cr4 41Cr4 41CrS4	1.7003 1.7006 1.7033 1.7034 1.7035 1.7039	0.35 to 0.42 0.42 to 0.50 0.30 to 0.37 0.34 to 0.41 0.38 to 0.45 0.38 to 0.45	0,30 0,30 0,30 0,30 0,30 0,30	0.50 to 0.80 0.50 to 0.80 0.60 to 0.90 0.60 to 0.90 0.60 to 0.90 0.60 to 0.90	0.025 0,025 0,025 0,025 0,025 0.025	0,025 0,025 0,025 0,025 0,025	max. max. max max. max.	0.40 to 0.60 0.40 to 0.60 0.90 to 1.20 0.90 to 1.20 0.90 to 1.20 0.90 to 1.20		0,25 0,25 0,25 0,25 0,25 0,25	0,25 0,25 0,25 0,25 0,25 0,25
38Cr2 46Cr2 34Cr4 37Cr4 41Cr4 41CrS4	1.7003 1.7006 1.7033 1.7034 1.7035 1.7039		0,30 0,30 0,30 0,30 0,30 0,30		0.025 0,025 0,025 0,025 0,025 0.025	0.020 to 0.040				0,25 0,25 0,25 0,25 0,25 0,25	0,25 0,25 0,25 0,25 0,25 0,25
NOTE 1 Elements not listed in this table should not be intentionally added to the steel, except for final refining of the melt, without the purchaser’s approval. All precautions must be taken to prevent the introduction of such elements from scrap and other materials used in production that could impair hardenability, mechanical properties, and serviceability. NOTE 2 For steels with hardenability requirements [see Tables 9 to 11], smaller deviations from the specified limits are permissible (with the exception of sulfur and phosphorus), provided that, for carbon, they do not exceed 01 %, and for the other elements, they do not surpass the values given in Table 5. NOTE 3 To enhance the efficiency of cold heading, it is possible to add 0.020 % up to 0.050 % of aluminum.

Table 4 Chemical composition of boron-alloyed steels. Cast analysis, mass fraction %

Table 5 Permissible deviations between product analysis and the cast analysis limits specified in Tables 3 and 4

3. Mechanical properties

Table 7 - Mechanical properties of boron-free alloy steels

Steel grade		Diameter		Delivery condition
				+AC or +AC+PE		+AC+C+AC		+AC+C+AC+LC
				Abbreviated name	Material number	Over mm	bis mm	Rm max MPa	Z min %	Rm max MPa	Z min %	Rm max MPa	Z min %
41Cr4, 41CrS4	1.7035 1.7039	2	5			610	60	650	58
41Cr4, 41CrS4	1.7035 1.7039	5	40	620	58	600	60	640	58

4. Hardenability requirements

Table 9 - Hardness limits for boron-free steel grades with (normal) hardenability requirements (H grade; see 6.4.1)

Steel short name	rte Material number	symbol	Austenitizing temperature C+5°℃	Range limit	Hardness in HRC Distance from the quenched end face in mm
Steel short name	rte Material number	symbol	Austenitizing temperature C+5°℃	Range limit	1	2	3	4	5	6	7	8	9	10	11	13	15	20	25	30
41Cr4, 41CrS4	1.7035	+H	850	max.	61	61	60	59	58		54	52	46	42	40	38	37	36	35
41Cr4, 41CrS4	1.7039	+H	850	min	53	52	50	47	41	37	34	32	29	26	23	21
min.	54	54	54	54	54	54	54	54	53	52	52	50

Table 10 - Hardness limits for boron-free steel grades with narrow hardenability requirements (HH and HL grades; see 6.4.2)

Steel grade		Symbol	austenitizing temperature °C ± 5℃	Range limit	hardenability in HRC, distance from the quenched end face in mm
Abbreviated name	Material number
Abbreviated name	Material number				1,5	3	5	7	9	11	13	15	20	25	30	35	40	A	50
41Cr4, 41CrS4	1.7035	+HH	850	max.	61	61	60	59	58	56	54	52	46	42	40	38	37	36	35
41Cr4, 41CrS4	1.7039	+HH	850	min	56	55	53	51	47	43	41	39	35	31	29	27	26	25	24
min	49	49	48	45	42	39	36	34	30	28	27	26	25	24	24

Table 12 Maximum diameter to achieve at least 90% martensite in core hardness testing (+ CH variety)

Steel grade		Symbol	austenitizing temperature in the core hardness test °C ± 5℃	minimum core hardness (90 % martensitic structure) HRC	maximum diameter to ensure 90% martensite in the core [mm]
Abbreviated name	Material number	Symbol	austenitizing temperature in the core hardness test °C ± 5℃	minimum core hardness (90 % martensitic structure) HRC	maximum diameter to ensure 90% martensite in the core [mm]
38Cr2 46Cr2 34Cr4 37Cr4 41Cr4 41CrS4	1.7003 1.7006 1.7033 1.7034 1.7035 1.7039	+CH +CH +CH +CH +CH +CH	850 850 850 850 850 850	48 51 46 48 50 50	8 9 14 15 16 16
a As a guideline, an austenitizing time of at least 30 minutes is recommended. b The specified maximum diameters are those achievable with the lowest hardenability for the respective steel grade, given the minimum carbon content. When using +HH steel grades, the maximum diameter may be increased

41CrS4 Cold-drawn steel wire

Material technical data

1. Combinations of delivery conditions

Table 1 Combinations of delivery conditions, product shapes, and conformity requirements

Table 2 Surface quality in delivery condition

2. Chemical composition

Table 3 Chemical composition of non-boron steel grades, cast analysis, mass fraction (%)

Table 4 Chemical composition of boron-alloyed steels. Cast analysis, mass fraction %

Table 5 Permissible deviations between product analysis and the cast analysis limits specified in Tables 3 and 4

3. Mechanical properties

Table 7 - Mechanical properties of boron-free alloy steels

4. Hardenability requirements

Table 9 - Hardness limits for boron-free steel grades with (normal) hardenability requirements (H grade; see 6.4.1)

Table 10 - Hardness limits for boron-free steel grades with narrow hardenability requirements (HH and HL grades; see 6.4.2)

Table 12 Maximum diameter to achieve at least 90% martensite in core hardness testing (+ CH variety)

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