BHW35 Steel Plate for Sale | RFQ Supply
BHW35 / 13MnNiMo5-4 (DIWA 353 family) is a Mn-Ni-Mo boiler / pressure-vessel plate for elevated temperature grade under BHW35 mill practice; commonly cross-referenced to 13MnNiMo5-4 / DIWA 353. This specification page covers grade identity, chemistry, mechanical requirements, related grades, and RFQ practice. Accept material against the ordered edition and the mill test certificate.
Grade Identity and Delivery Condition
BHW35 / 13MnNiMo5-4 (DIWA 353 family) is supplied for projects that name this designation on the purchase order or calculation sheet. Standard delivery condition is Normalized and tempered (typical). Gangsteel supplies export plate and related products with EN 10204 documentation. Do not accept an alternate heat-treatment route unless a written concession changes the specification requirement.
Chemical Composition - Heat Analysis (BHW35 / 13MnNiMo5-4 (DIWA 353 family))
BHW35 is a Chinese boiler-plate trade/mill grade commonly mapped to 13MnNiMo5-4 / DIWA 353. Confirm the ordered mill specification and MTC analysis - do not treat the trade name alone as a design code.
| Element / rule | Requirement |
|---|
| C, max | 0.15 (heat; product often <=0.17) |
| Si | 0.10-0.50 |
| Mn | 1.00-1.60 |
| P, max | 0.020 |
| S, max | 0.010 |
| Ni | 0.60-1.00 |
| Mo | 0.20-0.40 |
| Cr | 0.20-0.40 |
| Nb, max | 0.020 |
| Al total, min | 0.015 |
Mechanical Properties (BHW35 / 13MnNiMo5-4 (DIWA 353 family))
Confirm thickness, specimen orientation, and any supplementary impact, UT, or hardness requirements on the PO.
| Property | Requirement |
|---|
| Yield min (t<=50 mm typical) | 400 MPa |
| Yield min (50 < t <= 100 mm typical) | 390 MPa |
| Tensile Rm (typical N+T) | 570-740 MPa |
| Elongation A, min (typical) | 18% |
| Delivery | Normalized and tempered |
Related / Near-Equivalent Grades
Near-equivalents are for cross-reference only. They are not automatic code substitutes. Substitution requires engineer approval and matching certificate scope.
| System | Grade | Note |
|---|
| EN / Dil | 13MnNiMo5-4 / DIWA 353 | Common European mill mapping |
| GB | 13MnNiMoR family | Chinese pressure-vessel naming - confirm edition |
| Related | 15NiCuMoNb5-6-4 / WB36 | Different Ni-Cu-Mo-Nb boiler family - not interchangeable |
Frequently Asked Questions
What is BHW35 / 13MnNiMo5-4 (DIWA 353 family)?
BHW35 / 13MnNiMo5-4 (DIWA 353 family) is a Mn-Ni-Mo boiler / pressure-vessel plate for elevated temperature under BHW35 mill practice; commonly cross-referenced to 13MnNiMo5-4 / DIWA 353. It is ordered when drawings or the calculation sheet name this designation specifically.
What chemical composition applies to BHW35 / 13MnNiMo5-4 (DIWA 353 family)?
Controlled elements and limits are tabulated above from the governing standard. Always verify the heat analysis on the MTC against the ordered edition.
What mechanical properties should buyers expect for BHW35 / 13MnNiMo5-4 (DIWA 353 family)?
Tensile, yield, elongation, and related limits are tabulated above. Design allowables must come from the applicable pressure-vessel or structural code, not from a web summary.
What delivery condition is required for BHW35 / 13MnNiMo5-4 (DIWA 353 family)?
Standard delivery is Normalized and tempered (typical). State it explicitly on the PO. Do not accept an alternate route without a written concession.
How does BHW35 / 13MnNiMo5-4 (DIWA 353 family) differ from near-equivalent grades?
Near-equivalents may differ in carbon or alloy bands, tensile class, impact temperature, or heat treatment. Substitution needs engineering approval and matching certificate scope.
How do I RFQ BHW35 / 13MnNiMo5-4 (DIWA 353 family) from Gangsteel?
Send BHW35 / 13MnNiMo5-4 (DIWA 353 family), thickness x width x length, quantity or tonnage, delivery condition, optional impact/UT/Z tests, EN 10204 3.1 or 3.2, destination, and any dual-mark needs. Gangsteel replies with mill options, lead time, and packing notes.
Ordering and Mill Certificates
State grade BHW35 / 13MnNiMo5-4 (DIWA 353 family), 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.
