16CRMNH

2 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.

Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.

Open condition selection, comparison and carbon-equivalent tools for 16CRMNH →

16CrMnH · GB/T 5216-2014

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form: Reference record
Original record status: Original standard verified
Standard edition: GB/T 5216-2014
Table / clause: Table 1 and notes a/b; clauses 6.1.1–6.1.4
PDF page references: 1、7、8

Carbon-equivalent reference

Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.

Typically, residual Cu ≤0.25%; default S ≤0.035%

IIW / CEV：0.4667–0.6633Known-element contribution; incomplete value; missing Mo, V CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.

Pcm（Ito–Bessyo）：0.2300–0.3398Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

CET：0.2800–0.3950Known-element contribution; incomplete value; missing Mo CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Usual residual Cu≤.25%; Default S≤.035%; Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Pcm（Ito–Bessyo）：0.2300–0.3315Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

Normally residual Cu ≤0.25%; at the purchaser’s request, S is 0.015–0.035% (the ±0.005% product-analysis tolerance for S must be checked separately).

Usual residual Cu≤.25%; Purchaser-specified S .015–.035% (product S tolerance ±.005 requires separate verification); Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

For hot-pressure working, Cu≤0.20%; default S≤0.035%.

IIW / CEV：0.4667–0.6600Known-element contribution; incomplete value; missing Mo, V CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.

Pcm（Ito–Bessyo）：0.2300–0.3373Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

CET：0.2800–0.3925Known-element contribution; incomplete value; missing Mo CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Hot pressure working Cu≤.20%; Default S≤.035%; Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Pcm（Ito–Bessyo）：0.2300–0.3290Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

For hot-pressure working, Cu≤0.20%; S 0.015–0.035% only when required by the purchaser (product-analysis tolerance ±0.005 to be checked separately).

Hot pressure working Cu≤.20%; Purchaser-specified S .015–.035% (product S tolerance ±.005 requires separate verification); Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Composition record (conditional branches apply; this is not an unconditional requirement)

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.37 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	≤ 0.035 (lower limit not stated)
Cu	≤ 0.25 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Applicability and limitations

Official GB/T5216-2014, cover PDF1, Clause 6.1 PDF7, Table 1 and footnotes PDF8/9; Heat-analysis mass fractions wt%. ; Clause 6.1.2 residual Cu≤.25, Cr≤.30, Ni≤.30%; Specified alloy ranges in the table shall take priority; Hot working Cu≤.20 separate condition. ; 6.1.3 O≤.0020%; Unspecified residual limits such as Mo must not be assumed zero. ; Note a: Only for 16CrMnH/20CrMnH/25CrH/28CrH, Si≤.12% may be agreed at the buyer's request; the effect on mechanical properties must be considered.. ; Note b: Per buyer's request, S may be .015–.035%; in this case, the finished product tolerance is ±.005%, which is not a default heat analysis relaxation. ; H/HH/HL are different hardenability bands; S denotes a sulfur-related grade-designation condition.; Only compositions of H grades are listed this time; hardenability curves and all mechanical properties are not claimed to have been verified. ; The intended use for metal forming or machining under this standard must be stated in the contract.; Cold heading, annealing and actual wire-rod supply require separate confirmation; do not automatically add products..

Original condition-branch records

Typically, residual Cu ≤0.25%; default S ≤0.035%

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.37 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	≤ 0.035 (lower limit not stated)
Cu	≤ 0.25 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Usual residual Cu≤.25%; Default S≤.035%; Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.12 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	≤ 0.035 (lower limit not stated)
Cu	≤ 0.25 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Normally residual Cu ≤0.25%; at the purchaser’s request, S is 0.015–0.035% (the ±0.005% product-analysis tolerance for S must be checked separately).

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.37 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	0.015 ～ 0.035
Cu	≤ 0.25 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Usual residual Cu≤.25%; Purchaser-specified S .015–.035% (product S tolerance ±.005 requires separate verification); Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.12 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	0.015 ～ 0.035
Cu	≤ 0.25 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

For hot-pressure working, Cu≤0.20%; default S≤0.035%.

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.37 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	≤ 0.035 (lower limit not stated)
Cu	≤ 0.2 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Hot pressure working Cu≤.20%; Default S≤.035%; Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.12 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	≤ 0.035 (lower limit not stated)
Cu	≤ 0.2 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

For hot-pressure working, Cu≤0.20%; S 0.015–0.035% only when required by the purchaser (product-analysis tolerance ±0.005 to be checked separately).

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.37 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	0.015 ～ 0.035
Cu	≤ 0.2 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Hot pressure working Cu≤.20%; Purchaser-specified S .015–.035% (product S tolerance ±.005 requires separate verification); Note a: Si≤.12% is agreed taking its effect on mechanical properties into account

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.12 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.03 (lower limit not stated)
S	0.015 ～ 0.035
Cu	≤ 0.2 (lower limit not stated)
O	≤ 0.002 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

A condition branch must be selected

Yes

Verification notes

Official source cover, all 32 grades in Table 1, footnotes and 6.1 visually checked.

16CrMnH · GB/T 5216-2004

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form: Reference record
Original record status: Original standard verified
Standard edition: GB/T 5216-2004
Table / clause: Tables 1 and 2, notes a–c and clause 6.1; 15CrMoH includes Amendment No. 1
PDF page references: 1、6、7

Carbon-equivalent reference

Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.

Tables 1/2: default heat analysis

IIW / CEV：0.4667–0.6667Known-element contribution; incomplete value; missing Mo, V CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.

Pcm（Ito–Bessyo）：0.2300–0.3423Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

CET：0.2800–0.3975Known-element contribution; incomplete value; missing Mo CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Si≤.12% is required by the purchaser, taking its effect on mechanical properties into account

Pcm（Ito–Bessyo）：0.2300–0.3340Known-element contribution; incomplete value; missing Mo, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.

Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H

Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H; Si≤.12% is required by the purchaser, taking its effect on mechanical properties into account

Hot pressure working Cu≤.20%

Hot pressure working Cu≤.20%; Si≤.12% is required by the purchaser, taking its effect on mechanical properties into account

For hot-pressure working, Cu≤0.20%; if the purchaser requires semi-free-cutting S at 0.020–0.035%, prefix the designation H with S.

Hot pressure working Cu≤.20%; Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H; Si≤.12% is required by the purchaser, taking its effect on mechanical properties into account

Composition record (conditional branches apply; this is not an unconditional requirement)

Element	Composition requirement
C	0.14 ～ 0.19
Si	≤ 0.37 (lower limit not stated)
Mn	1.0 ～ 1.3
Cr	0.8 ～ 1.1
P	≤ 0.035 (lower limit not stated)
S	≤ 0.035 (lower limit not stated)
Cu	≤ 0.3 (lower limit not stated)
Ni	≤ 0.3 (lower limit not stated)

Applicability and limitations

GB/T 5216—2004 original Tables 1/2 and 6.1, ladle-analysis mass fraction wt%; retain the actual 2004 edition.

For high-quality steel, Note a to Table 1 adds A before H (e.g. 40CrAH); P/S by quality level and residual Cu/Cr/Ni follow Table 2; do not mix with the 2014 edition.

Under 6.1.3, Cu≤0.20% for hot-pressure processing. If the purchaser requires S 0.020–0.035%, add S before H; the sulfur tolerance ±0.005 is separately stated and does not expand the default range.

Table 1 alloy-element ranges take precedence over Table 2 residual limits; a blank means unspecified, not zero.

H/HH/HL hardenability bands, delivery condition, hardness and suitability for cold-heading processes require separate verification; this does not automatically create a supply product.