14Cr1MoR | Equivalents

14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate) is frequently cross-referenced to related ASTM/ASME, EN, and other designations. This equivalents page leads with that cross-reference map, then summarizes chemistry and mechanical limits used to judge dual marking. Near-equivalents are not automatic code substitutes.

Equivalents and Cross-Reference Map

Use the table for RFQ orientation and dual-cert discussions. True dual certification exists only when one heat meets every chemical and mechanical limit of each named specification on the same MTC. Class society, PED, or ASME dossier wording still controls acceptance.

System	Grade	Note
ASTM / ASME	A387 / SA387 Grade 11 Class 2	1.25Cr-0.5Mo twin family - confirm tensile class
EN 10028-2	13CrMoSi5-5 / 13CrMo4-5 (approx.)	Confirm edition
GB	15CrMoR	Related Cr-Mo; different C/Cr band

Substitution caveat: Do not swap grades based on marketing strength bands alone. Chemistry, heat treatment, impact temperature, and product form must be reviewed by the responsible engineer before any concession.

Chemical Composition - Base Grade (14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate))

Heat analysis for 14Cr1MoR under GB 713 family. Newer GB/T 713.2 editions may tighten residuals - confirm ordered edition on the MTC.

Element / rule	Requirement
C, max	0.17
Si	0.50-0.80
Mn	0.40-0.65
P, max	0.020
S, max	0.010
Cr	1.15-1.50
Mo	0.45-0.65

Mechanical Properties (14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate))

Confirm thickness, specimen orientation, and any supplementary impact, UT, or hardness requirements on the PO.

Property	Requirement
Tensile (6-100 mm typical)	520-680 MPa
Yield min (6-100 mm typical)	310 MPa
Tensile (>100-150 mm typical)	510-670 MPa
Yield min (>100-150 mm typical)	300 MPa
Elongation A, min	19%
Delivery	Normalized and tempered (typical)

Frequently Asked Questions

What are the common equivalents for 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate)?

Buyers typically cross-reference 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate) with the related designations listed in the map above. Related grades in the same family are not automatic substitutes.

Is a near-equivalent always acceptable on an ASME or PED dossier?

No. The material specification listed on the calculation sheet, PED appraisal, or purchaser material list controls acceptance. Certificate marks must match unless a formal concession is approved.

How should dual marking be requested for 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate)?

List every required standard on the purchase order and ask the mill to print all approved designations on one MTC only when the heat qualifies against each. Gangsteel confirms which heats can honestly carry those marks before allocation.

What is a safe way to compare 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate) with near-equivalents?

Compare chemistry ranges, tensile/yield windows, impact temperature if specified, delivery/heat-treatment practice, and product form side by side. Name-alike grades can still fail dossier acceptance.

Does a sibling class or grade count as an equivalent?

Sibling classes (for example Class 1 vs Class 2, or Grade A vs B) share a family but intentionally different strength or toughness tiers. Ordering the wrong tier undercuts the design assumption.

How do I RFQ 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate) when equivalents are also named?

State 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate) as the governing grade, then list any dual marks required. Include dimensions, quantity, delivery condition, optional tests, certificate type, destination, and which mark governs acceptance.

Ordering and Mill Certificates

State grade 14Cr1MoR (GB/T 713 Cr-Mo pressure-vessel plate), dimensions, quantity, delivery condition, optional NDT/PMI, and certificate (EN 10204 3.1 standard; 3.2 when third-party inspection is ordered). Gangsteel supplies export plate and related products with mill test certificates. Contact Gangsteel for stock and mill production RFQs.