Steel grades – Risse + Wilke

Quenched and tempered steels acc. to DIN EN 10132

Spring steels acc. to DIN EN 10132

Micro-alloyed cold rolled steel strip acc. to DIN EN 10268

High strength micro alloyed cold rolled steel strip acc. to DIN EN 10268 (based on)

Tempering steels, boron-alloyed steels acc. to DIN EN 10132

Classic cold rolled strip & special deep drawing grades acc. to DIN EN 10139

Soft magnetic steels acc. to DIN EN 17405 (based on)

Case hardening steels acc. to DIN EN 10132

Key steels acc. to DIN EN ISO 683-4 (based on)

Construction steels acc. to DIN 1623

Edges acc. to DIN EN 10140

Strip thickness tolerances acc. to DIN EN 10140

Strip thickness tolerances

Strip thickness tolerances acc. to DIN EN 10140 and special tolerances
Nominal widths [mm]	< 125	≥ 125 up to ≤ 650	> 650 up to ≤ 800

Nominal thicknesses [mm]	A B C	A B C	A B C
	+/- + /- +/-	+/- + /- +/-	+/- + /- +/-
> 0,15 ≤ 0,25 EN	0.015 0.012 0.008	0.020 0.015 0.010	0.025 0.015 0.012
* RWST	0.008	0.010	0.010
> 0,25 ≤ 0,40 EN	0.020 0.015 0.010	0.025 0.020 0.012	0.030 0.020 0.015
RWST	0.010	0.012	0.013
> 0,40 ≤ 0,60 EN	0.025 0.020 0.012	0.030 0.025 0.015	0.035 0.025 0.020
RWST	0.012	0.013	0.014
> 0,60 ≤ 1,00 EN	0.030 0.025 0.015	0.035 0.030 0.020	0.040 0.030 0.025
RWST	0.014	0.014	0.015
> 1,00 ≤ 1,50 EN	0.035 0.030 0.020	0.040 0.035 0.025	0.050 0.045 0.030
RWST	0.018	0.018	0.018
> 1,50 ≤ 2,50 EN	0.045 0.035 0.025	0.050 0.040 0.030	0.060 0.045 0.035
RWST	0.020	0.020	0.020
> 2,50 ≤ 4,00 EN	0.050 0.040 0.030	0.060 0.050 0.035	0.075 0.055 0.040
RWST	0.025	0.025	0.030
> 4,00 ≤ 6,00 EN	0.060 0.050 0.035	0.070 0.055 0.040	0.090 0.065 0.045
RWST	0.035	0.035	0.040
> 6,00 ≤ 8,00 EN	0.075 0.060 0.040	0.085 0.065 0.045	0.100 0.075 0.050
* RWST = Risse + Wilke special tolerance

Minimum distance of the measuring points from the edge for strip thicknesses acc. to DIN EN 10140
Type of edge	Nominal widths W [mm]	Minimum distances of measuring
		points from the edge [mm] *
As rolled edges (NK)	W ≤ 30	0.5 W
	30 < W < 800	15
GK - slit edges	W ≤ 20	0.5 W
	30 < W ≤ 800	10
SK - special edges	Upon consultation
* Other measuring point distances possible by special agreement

Strip widths tolerances acc. to DIN EN 10140

Tolerances on shape acc. to DIN EN 10140

Strip length tolerances / surfaces / delivery conditions acc. to DIN EN 10140

Standard	DIN EN 10132
Grades	Tempering steels: C22E - C60E, 25CrMo4 - 50CrMo4 Boron-alloyed steels: 27MnCrB5-2 and similar Spring steels: C55S - C100S, 75Cr1 - 95Cr1, 51CrV4 - 80CrV2, 68CrNiMo33, 75Ni8, 102Cr6
Chemical cast analysis	Based on DIN EN 10132 and also special analysis
Strip thicknesses [mm]⁽¹⁾	Martensite: 0.30 - 5.10
Strip widths [mm]^{(2) (3)}	Martensite: 35 - 720
Delivery conditions	QT - martensitic quenched and tempered
Mechanical properties ⁽¹⁾ Hardness range	Martensite:	Spring steels Tempering steels Boron-alloyed steels	Hardness 30 - 54 HRC Hardness 30 - 48 HRC Hardness 30 - 44 HRC
Surfaces (appearance + finish)	Bright, grey-blue, polished and yellow tempered, brush-polished
Edge conditions	GK - slit edges, SK - special edges (machined or edge-rolled)
Dimensional tolerances	General tolerances: Strip width tolerances:	acc. to DIN EN 10140 and special agreement acc. to special agreement only
Flatness	Max. 1.0 µm/mm width for martensitic tempered spring steels with C-contents of 0.67 - 1.00 %, Max. 1.5 - 2.0 µm/mm width for boron-alloyed grades and tempering steels.
Delivery forms	Coils and cut to lengths
Cut to length dimensions ⁽²⁾	Width 80 - 720 mm	Length: 400 - 4000 mm
Specialities	Hardening of low carbon steel with very good flatness values. Hardening of extreme cross-sections with especially wide and thick dimensions. Hardening in lead free process upon agreement.
⁽¹⁾ Variations depending on grade and dimension to be taken into account ⁽²⁾ Further dimensions upon agreement ⁽³⁾ Strip width < 35 mm only available in slit-after-hardening condition in strip thickness ≤ 0.80 mm

Standard	DIN EN 10132
Grades	C55S - C100S, 51CrV4, 58CrV4, 75Cr1, 68CrNiMo33, 75Ni8, 80CrV2, 102Cr6 and similar
Chemical cast analysis	Based on DIN EN 10132 and special analysis
Strip thicknesses [mm]	0.20 - 5.20
Strip widths [mm]	4 - 810 ⁽²⁾
Delivery conditions	LC; A; AC; CR; QT
Mechanical properties:	Standard values for Rm, Re, A80; Hardness acc. to DIN EN 10132 Special agreements for particular working- and forming properties after consultation.
Surfaces (appearance + finish)	MA with finish RR, RM, RL acc. to DIN EN 10139 MB⁽¹⁾ with finish RL, RM acc. to DIN EN 10139
Dimensional tolerances	Acc. to DIN EN 10140 and special agreement
Delivery forms	Coils and cut to lengths
Specialities	Best formability, very good fine blanking properties attainable through selective production processes.
⁽¹⁾ MB for thicknesses 0.2 - 2.0 mm, thicker dimensions on request ⁽²⁾ Maximum width only for NK

Standard	DIN EN 10268
Grades		HC260LA	HC300LA	HC340LA	HC380LA	HC420LA	HC460LA	HC500LA
Chemical cast analysis	C (max)	0.100	0,120	0,120	0,120	0,140	0,140	0,140
	Si (max)	0.500	0,500	0,500	0,500	0,500	0,600	0,600
	Mn (max)	1,000	1,400	1,500	1,600	1,600	1,800	1,800
	P (max)	0,030	0,030	0,030	0,030	0,030	0,030	0,030
	S (max)	0,025	0,025	0,025	0,025	0,025	0,025	0,025
	Al (min)	0,015	0,015	0,015	0,015	0,015	0,015	0,015
	Ti (max)	0,150	0,150	0,150	0,150	0,150	0,150	0,150
	Nb (max)	0,090	0,090	0,090	0,090	0,090	0,090	0,090
Strip thicknesses [mm]	0.20 - 5.20
Strip widths [mm]	4 - 810⁽²⁾
Mechanical properties in LC
Tensile strength R_m [MPa]	Longitudinal testing	340 - 420	370 - 470	400 - 500	430 - 550	460 - 580	480 - 630	520 - 690
Yield strength R_p0,2 [MPa]		240 - 310	280 - 360	320 - 410	350 - 450	390 - 500	420 - 560	460 - 600
Elongation A₈₀ [%]		min. 27	min. 24	min. 22	min. 20	min. 18	min. 14	min. 13
Surfaces (appearance + finish)	MA with finish RR, RM, RL acc. to DIN EN 10139
Surfaces (appearance + finish)	MB⁽¹⁾ with finish RL, RM acc. to DIN EN 10139
Dimensional tolerances	Acc. to DIN EN 10140 and special agreement
Delivery forms	Coils and cut to lengths
Specialities	Tolerance range for mechanical properties can be reduced further if necessary. Measuring on longitudinal test specimen preferred, transverse testing by agreement.
⁽¹⁾ MB for thicknesses 0.2 - 2.0 mm, thicker dimensions on request ⁽²⁾ Maximum width only for NK

Standard		Based on DIN EN 10268
Grades		Possible grades: RiWi 600 - RiWi 1400
Chemical cast analysis		Based on DIN EN 10268 with modifications
Strip thicknesses [mm]		0.80 - 5.50⁽¹⁾
Strip widths [mm]		4 - 810⁽²⁾
Grades		RiWi 600	RiWi 700	RiWi 800	RiWi 900	RiWi 1000	RiWi 1100	RiWi 1400
Mechanical properties:	Longitudinal testing
Tensile strength Rm [MPa]		630 - 780	730 - 880	830 - 980	920 - 1070	1020 - 1170	1110 - 1260	1410 - 1560
Yield strength R_p0.2 [MPa]		600 - 720	700 - 820	800 - 920	900 - 1020	1000 - 1150	1100 - 1250	1400 - 1550
Elongation A₈₀ [%]⁽⁴⁾		min. 10	min. 10	min. 9	min. 7	min. 5	min. 3
Surfaces (appearance + finish)	MA, MB⁽³⁾ with finish RL; (RM) acc. to DIN EN 10139
Dimensional tolerances	Acc. to DIN EN 10140 and special agreement
Delivery forms	Coils and cut to lengths
Specialities	Intermediary grades on request, measuring on longitudinal test specimen preferred.
⁽¹⁾ Other thicknesses on request ⁽²⁾ Maximum width only for NK ⁽³⁾ MB for thicknesses 0.2 - 2.0 mm, thicker dimensions on request ⁽⁴⁾ Elongation on request

Standard	DIN EN 10132
Grades	Tempering steels: C40E, C45E, C50E, C55E, C60E, 25Mn4, 25CrMo4, 34CrMo4, 42CrMo4, 50CrMo4 and similar Boron-alloyed steels: 20MnB5, 27MnCrB5-2 and similar; 30MnB5
Chemical cast analysis	Based on DIN EN 10132 and special analysis
Strip thicknesses [mm]	0.20 - 5.20
Strip widths [mm]	4 - 810 ⁽²⁾
Delivery conditions	LC; A; AC; CR; QT
Mechanical properties:	Tempering steels: Standard values for Rm, Re, A80; Hardness acc. to DIN EN 10132, Special agreements for particular working- and forming properties after consultation. Boron-alloyed steels: Mechanical properties upon agreement
Surfaces (appearance + finish)	MA with finish RR, RM, RL acc. to DIN EN 10139 MB⁽¹⁾ with finish RL, RM acc. to DIN EN 10139
Dimensional tolerances	Acc. to DIN EN 10140 and special agreement
Delivery forms	Coils and cut to lengths
Specialities	Also available in special deep drawing condition.
⁽¹⁾ MB for thicknesses 0.2 - 2.0 mm, thicker dimensions on request ⁽²⁾ Maximum width only for NK

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Tolerances and conditions

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Edge conditions	Sketch
Both edges machine-rounded
Both edges right-angled
Strip upper or lower side chamfered with defined angles of 5° to 90°
Both strip sides chamfered with different angles of 5° to 90°
One edge machine-rounded
One edge with chamfered upper and lower strip side with defined angles of 5° to 90°
One edge chamfered with defined angle of 5° to 90° and other edge right-angled

Strip widths tolerances (DIN EN 10140)
Widths tolerances for products with as-rolled edges

Nominal widths [mm]	Widths tolerances [mm]
< 40	0/+ 1.6
≥ 40 < 80	0/+ 2.0
≥ 80 < 125	0/+ 2.4
≥ 125 < 250	0/+ 3.0
≥ 250 < 400	0/+ 3.6
≥ 400 < 500	0/+ 4.2
≥ 500 < 600	0/+ 4.5
≥ 600 < 800	0/+ 5.0 not standardised

Widths tolerances for products with slit edges
Widths tolerances	Standardised production width [mm]						Not standardised [mm]
EN 10140

Nominal thicknesses [mm]	< 125		≥ 125 - < 250		≥ 250 - < 600		≥ 600 - < 800
	A	B	A	B	A	B	A	B
	+/-	+/-	+/-	+/-	+/-	+/-	+/-	+/-
> 0.20 ≤ 0.60 EN	0.15	0.10	0.15	0.10	0.25	0.18	0.30	0.22
*RWST (Range)		0.10		0.10		0.15		0.20
> 0.60 ≤ 1.50 EN	0.20	0.13	0.20	0.13	0.30	0.20	0.35	0.24
*RWST (Range)		0.15		0.15		0.25		0.30
> 1.50 ≤ 2.50 EN	0.25	0.18	0.25	0.18	0.35	0.25	0.40	0.30
*RWST (Range)		0.20		0.20		0.35		0.40
> 2.50 ≤ 4.00 EN	0.30	0.20	0.30	0.20	0.40	0.30	0.45	0.35
*RWST (Range)		0.25		0.25		0.45		0.50
> 4.00 ≤ 6.00 EN	0.35	0.25	0.35	0.25	0.45	0.35	0.50	0.40
*RWST (Range)		0.30		0.30		0.50		0.60
> 6.00 ≤ 7.00 EN	0.45	0.45	0.45	0.45	0.55	0.55	0.55	0.55
*RWST (Range)
* RWST = Risse + Wilke special tolerance

Flatness of cut length (DIN EN 10140)	Flatness/ Transversal Flatness