37CR4

Table 2 cast analysis, mass fraction wt%; Si is an upper limit and unspecified elements are not filled with zero. P/S requirements for the C, Ck and Cm series remain separate; S 0.020–0.035% in S-containing grades is a two-sided range. Note 1: unlisted elements may not be intentionally added without purchaser consent, except to complete melting; no fixed residual values are inferred. Table 3 contains permissible product-analysis deviations, not added to cast limits; applicable sizes and positive/negative directions are checked separately. Heat-treatment condition, hardenability and size-dependent properties require separate verification. The standard includes hot-rolled wire rod; chemistry alone is no cold-heading supply commitment. Note 2: small composition deviations, excluding P/S, may be agreed when ordering restricted hardenability bands or quenched-and-tempered/normalized properties, but may not exceed Table 3. These data retain the Table 2 baseline without automatic relaxation. Light-typeface grades in note 4 are for special applications only. Note 5 permits separate ordering of Pb 0.15–0.30% only for the marked C-series grades; not added to ordinary base compositions. Original material number 1.7034; not marked for special application under note 4.

Composition based on ISO 4954:2018; the product edition is unspecified, so confirm the edition applicable to the contract.

ISO 4954:2018, Table C.2 gives heat analysis; A single value is a maximum; a dash is not zero. ; Product-analysis tolerances are listed separately under Table 2/3 of the standard and do not directly widen the heat-analysis composition ranges. ; Optional Al0.020–0.050% to improve cold-heading performance; this is not a universal mandatory minimum. ; Low Si may be agreed in the order, taking hardenability into account; Where hardenability is required, the standard permits limited deviations, except for P/S; C must not exceed 0.01%; see Table 2 for the other requirements. ; For C, a range of width 0.04% may be agreed; it does not replace the tabulated range by default.

Mass fraction wt%; Table C.2/C.3 heat analysis; see Table 2 separately for product-analysis tolerances. ; Note a: Al≤0.050% may be added to improve cold heading, but is not mandatory by default. ; Note c: A lower Si or a specified Si range may be requested by agreement; specific agreements have not yet been provided and shall not be filled in arbitrarily. ; When hardenability requirements exist, the small deviations permitted in Table B.6/B.7 must be verified separately according to Table 2 and conditions; the default composition range shall not be expanded. ; Elements not listed must not be intentionally added without purchaser consent, except additions needed to finish steelmaking; Unspecified values are not treated as zero. ; Mechanical properties/hardenability have not been supplemented in this batch; Cold heading applicability must be determined in conjunction with dimensions, state, and technical conditions.

EN10263-4:2017, Table 3, heat analysis, mass percent. ; Elements not listed shall not be filled as 0; they shall not be intentionally added without the consent of the purchaser, except additions needed to finish steelmaking. ; Note 2 allows the specification of small deviations when hardenability requirements exist, but this does not involve P/S; The default composition range is not expanded here; it must be combined with specific hardenability ordering conditions. ; Note 3 allows Al 0.020–0.050% to be listed separately; it shall not be defaulted as mandatory aluminum content. ; Mechanical properties and delivery conditions are to be verified separately; the standard range is not a guarantee for the forming of arbitrary parts. ; Note a: lower Si may be agreed upon, but the influence on properties such as hardenability must be considered; do not fill in if no specific agreement range is provided. ; Note b allows a C range of 0.04% width by agreement; the example .33–.37 is not a uniform range for all grades.

The original webpage states DIN EN 10263-4-2018; The composition in this record was actually verified against DIN EN 10263-4-2002; the edition is now identified as 2002 according to the original evidence; The original official German edition of 2018 remains unavailable; edition EN2017 is not automatically treated as the original DIN. ; DIN EN10263-4:2002-02 adopts EN10263-4:2001; the edition relationship is expressly identified on the cover; Heat-analysis mass percentages. ; Historical Table 2/3 contains no optional Al addition note for 2017; newer-edition conditions are not applied. ; Table 2, note c permits an agreed carbon range of width .04%; tabulated defaults are unchanged without a specific agreement. ; Table 2, note d and Table 3, note c permit agreed lower Si, considering effects on properties/hardenability; no range is invented where none is specified. ; Unlisted elements are not entered as zero; Table 2, note a: intentional additions without purchaser consent are prohibited except to finish the heat; residuals may be present but must not impair properties. ; Table 2, note b permits specified deviations where hardenability is required, except for P/S; The default composition range is not widened here. ; Mechanical properties, delivery and hardenability require separate verification; suitability for forming a specific component requires separate confirmation.

DIN EN10263-4:2002-02 adopts EN10263-4:2001; the edition relationship is expressly identified on the cover; Heat-analysis mass percentages. ; Historical Table 2/3 contains no optional Al addition note for 2017; newer-edition conditions are not applied. ; Table 2, note c permits an agreed carbon range of width .04%; tabulated defaults are unchanged without a specific agreement. ; Table 2, note d and Table 3, note c permit agreed lower Si, considering effects on properties/hardenability; no range is invented where none is specified. ; Unlisted elements are not entered as zero; Table 2, note a: intentional additions without purchaser consent are prohibited except to finish the heat; residuals may be present but must not impair properties. ; Table 2, note b permits specified deviations where hardenability is required, except for P/S; The default composition range is not widened here. ; Mechanical properties, delivery and hardenability require separate verification; suitability for forming a specific component requires separate confirmation.

Composition is based on Table 3 of EN10083-3:2006 in the official English text of DIN EN10083-3:2007-01, heat analysis wt%. ; Note a: Elements not listed shall not be intentionally added without the purchaser's consent, except for additions needed to finish steelmaking and to enable boron to act on hardenability.; Unspecified values shall not be treated as zero. ; Note b: Small deviations are permitted where hardenability or quenched-and-tempered mechanical-property requirements apply, except for C/P/S; permitted deviations for other elements must not exceed Table 4.; Default heat analysis range shall not be expanded. ; For non-boron steels in this standard, Note c permits steel with improved machinability to be supplied on request: sulfur approximately 0.10%, with the Mn upper limit permitted to increase by an absolute 0.15%.; Approximate values are not default hard upper limits and must be determined by specific inquiry/order; they shall not be automatically mixed with ordinary grades. ; This standard covers alloy steels for quenching and tempering. Suitability for cold heading, wire-rod supply, annealing, surface and dimensions require separate confirmation; do not automatically add products..

Composition is based on Table 3 of EN10083-3:2006 in the official English text of DIN EN10083-3:2007-01, heat analysis wt%. ; Note a: Elements not listed shall not be intentionally added without the purchaser's consent, except for additions needed to finish steelmaking and to enable boron to act on hardenability.; Unspecified values shall not be treated as zero. ; Note b: Small deviations are permitted where hardenability or quenched-and-tempered mechanical-property requirements apply, except for C/P/S; permitted deviations for other elements must not exceed Table 4.; Default heat analysis range shall not be expanded. ; For non-boron steels in this standard, Note c permits steel with improved machinability to be supplied on request: sulfur approximately 0.10%, with the Mn upper limit permitted to increase by an absolute 0.15%.; Approximate values are not default hard upper limits and must be determined by specific inquiry/order; they shall not be automatically mixed with ordinary grades. ; This standard covers alloy steels for quenching and tempering. Suitability for cold heading, wire-rod supply, annealing, surface and dimensions require separate confirmation; do not automatically add products..

NF EN 10083-3:2006-12 corresponds to EN 10083-3:2006; Composition is read from the verified official original text of this EN version; see Data Basis for the actual source document. Composition is based on Table 3 of EN10083-3:2006 in the official English text of DIN EN10083-3:2007-01, heat analysis wt%. ; Note a: Elements not listed shall not be intentionally added without the purchaser's consent, except for additions needed to finish steelmaking and to enable boron to act on hardenability.; Unspecified values shall not be treated as zero. ; Note b: Small deviations are permitted where hardenability or quenched-and-tempered mechanical-property requirements apply, except for C/P/S; permitted deviations for other elements must not exceed Table 4.; Default heat analysis range shall not be expanded. ; For non-boron steels in this standard, Note c permits steel with improved machinability to be supplied on request: sulfur approximately 0.10%, with the Mn upper limit permitted to increase by an absolute 0.15%.; Approximate values are not default hard upper limits and must be determined by specific inquiry/order; they shall not be automatically mixed with ordinary grades. ; This standard covers alloy steels for quenching and tempering. Suitability for cold heading, wire-rod supply, annealing, surface and dimensions require separate confirmation; do not automatically add products..

Table 2 cast analysis, mass fraction wt%; Si is an upper limit and unspecified elements are not filled with zero. P/S requirements for the C, Ck and Cm series remain separate; S 0.020–0.035% in S-containing grades is a two-sided range. Note 1: unlisted elements may not be intentionally added without purchaser consent, except to complete melting; no fixed residual values are inferred. Table 3 contains permissible product-analysis deviations, not added to cast limits; applicable sizes and positive/negative directions are checked separately. Heat-treatment condition, hardenability and size-dependent properties require separate verification. The standard includes hot-rolled wire rod; chemistry alone is no cold-heading supply commitment. Note 2: small composition deviations, excluding P/S, may be agreed when ordering restricted hardenability bands or quenched-and-tempered/normalized properties, but may not exceed Table 3. These data retain the Table 2 baseline without automatic relaxation. Light-typeface grades in note 4 are for special applications only. Note 5 permits separate ordering of Pb 0.15–0.30% only for the marked C-series grades; not added to ordinary base compositions. Original material number 1.7034; not marked for special application under note 4.

Table 3 herein applies to heat (cast) analysis, mass fraction wt%; The permissible deviations for product analysis in Table 4 shall not be directly added to the limits in general Table 3. This document is EN ISO 683-2:2018, adopted without modification and accompanied by the text of ISO 683-2:2016; This record explicitly preserves the identity of EN ISO 683-2-2018 and shall not be called the ISO 2018 edition. Only the chemical composition and source conditions of Table 3 are verified; this does not constitute a guarantee of hardenability, heat treatment, mechanical properties, wire delivery state, or cold heading process. Note a: deviations in heat analysis apply only when hardenability requirements are specified; The deviation in C shall not exceed ±0.01%; P/S is excluded, and the other elements follow Table 4. General Table 3 shall not be automatically relaxed, nor shall H/HH/HL be merged with general grades. Note b: Steel with S increased to approximately 0.10% (including sulfide morphology control) or with the addition of Pb to improve machinability may be requested from the supplier; When S is increased, the upper limit of Mn may be increased by 0.15 percentage points. This agreement is not a default requirement, and approximate values shall not serve as precise automatic limits for this batch; if the Pb range is not listed, values shall not be borrowed from other standards. Original Note: Elements not listed shall not be intentionally added without the consent of the purchaser, except those required to complete the melting process; Elements introduced via scrap steel etc. shall be controlled. An unlisted value must not be assumed to be zero. Note d: lower Si is permitted, but other deoxidation methods must be used; The original text does not provide a uniform lower Si range; agreed conditions shall not automatically replace the range listed in 0.10–0.40%.

Table 3 herein applies to heat (cast) analysis, mass fraction wt%; The permissible deviations for product analysis in Table 4 shall not be directly added to the limits in general Table 3. This document is EN ISO 683-2:2018, adopted without modification and accompanied by the text of ISO 683-2:2016; This record explicitly preserves the identity of ISO 683-2-2016 and shall not be called the ISO 2018 edition. Only the chemical composition and source conditions of Table 3 are verified; this does not constitute a guarantee of hardenability, heat treatment, mechanical properties, wire delivery state, or cold heading process. Note a: deviations in heat analysis apply only when hardenability requirements are specified; The deviation in C shall not exceed ±0.01%; P/S is excluded, and the other elements follow Table 4. General Table 3 shall not be automatically relaxed, nor shall H/HH/HL be merged with general grades. Note b: Steel with S increased to approximately 0.10% (including sulfide morphology control) or with the addition of Pb to improve machinability may be requested from the supplier; When S is increased, the upper limit of Mn may be increased by 0.15 percentage points. This agreement is not a default requirement, and approximate values shall not serve as precise automatic limits for this batch; if the Pb range is not listed, values shall not be borrowed from other standards. Original Note: Elements not listed shall not be intentionally added without the consent of the purchaser, except those required to complete the melting process; Elements introduced via scrap steel etc. shall be controlled. An unlisted value must not be assumed to be zero. Note d: lower Si is permitted, but other deoxidation methods must be used; The original text does not provide a uniform lower Si range; agreed conditions shall not automatically replace the range listed in 0.10–0.40%.

Based on the original Table 1 and footnotes of EN10250-3:1999 as recorded in BS EN10250-3:2000, heat analysis mass fraction is in wt%.. ; This standard covers alloy special-steel open-die forgings, forged bars and ring-rolled products after pre-forging, supplied in the quenched-and-tempered condition.; This does not automatically establish a supply standard for cold-heading wire.. ; Table 1 Note 1 allows the manufacturer to add Al, Ti, V, Nb individually or in combination to control grain size.; No new numerical ranges are provided; values cannot be filled as zero or have upper limits arbitrarily determined.. Elements not listed in Table 1/2 shall not be intentionally added without the consent of the purchaser (except additions needed to finish steelmaking).. ; 3.1 requires the heat analysis composition to be in accordance with Table 1 and references A.7/A.8 of EN10250-1.; Clause 3.2: Apply product-analysis tolerances separately under Table 2 and Clause 9.2 of EN10250-1; do not directly expand the default heat-analysis range.. ; Currently, only chemical compositions, grade/steel number correspondences, and related range footnotes are confirmed.; It is not declared that all mechanical properties and the referenced Part 1 have been verified..

A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

Give priority to the published technical page on the Creation Group website. Use local reference ranges only as supplementary composition cross-checks; the applicable standard for that product page, the technical agreement and actual verification take precedence.

A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

The original informative-annex table has been checked and is for reference only. Clause 7.1.2 requires chemical composition to be determined under the cited standard; the formal normative composition and applicable edition remain unverified. Do not use it as a delivery guarantee, a reverse-search acceptance criterion or a basis for standard-range carbon equivalent.