Skip to content
STEEL GEMS CONNECTProducts
+91 96199 26607Create RFQ ↗
ASTM A234 / ASME SA234 WP11

ASTM A234 WP11 Alloy Steel Fittings

Chromium-molybdenum butt-weld fittings for P11 alloy-steel boiler, steam and high-temperature piping.

Grade
1.25Cr-0.5Mo Alloy Steel
Supply base
Mumbai · India + Export
ASTM A234 WP11 Alloy Steel Fittings manufacturer and supplier Steel Gems India
PRODUCTASTM A234 WP11 Alloy Steel Fittings
SPECIFICATIONASTM A234 / ASME SA234 WP11
MATERIAL / GRADE1.25Cr-0.5Mo Alloy Steel
PREPARE A COMPARABLE OFFER

WP11 fittings: quote the fitting, not just the alloy.

  • Elbow angle and LR/SR, tee branch sizes, or reducer end sizes and concentric/eccentric type.
  • Exact WP11 class, heat-treatment condition, schedule / end wall and permitted construction.
  • ASME B16.9 or approved drawing, quantity, ends and matching P11 pipe / F11 flange scope.
  • Requested MTC, heat-treatment records, PMI, hardness, NDT and IBR / TPI scope.

Matching P11 pipe →Butt-weld fitting range →

GLOBAL BUYER DESK

Specify it for your project.

International references for ASTM A234 WP11 Alloy Steel Fittings. Select the required specification system, then complete your enquiry. Options are available for technical review; compliance and supply capability require written confirmation.

1 · Choose reference standards

Selecting several references requests a compliance review. It does not establish equivalence or dual certification. Hidden selections remain in your enquiry.

0 reference groups selected

2 · Complete buying details
Requested documentation / inspection
Keep these distinctions clear

Class, PN and JIS K are separate rating systems; no automatic conversion or drilling compatibility is implied. NPS / DN is nominal, not actual OD. Similar grades are comparison candidates only. ASTM / ASME and EN designations are not automatic substitutes.

Certificates, inspection, IBR and project approvals are separate requirements. An ISO 9001 quality-system certificate is not a product approval. Current issuer editions may differ from the edition required by your contract.

3 · Review and share enquiry
STEEL GEMS — INTERNATIONAL SPECIFICATION ENQUIRY
Product: ASTM A234 WP11 Alloy Steel Fittings
Requested references: To confirm
Exact grade / UNS / delivery condition: 1.25Cr-0.5Mo Alloy Steel
Required edition / addenda: To confirm
Size, actual OD, wall / schedule and units: To confirm
Rating system and value (Class / PN / JIS K / Table): To confirm
Type, construction, connection, facing / thread: To confirm
Quantity with unit: To confirm
Documents / tests requested: To confirm
Delivery city / country / ZIP / port: To confirm
Project notes / origin restrictions / service conditions: To confirm
Please review applicable scope, compatibility, material origin, manufacturing route, compliance, availability and commercial terms. This is an enquiry, not an engineering approval.

WhatsApp opens a draft for you to review and send. Files are not attached automatically; use the RFQ upload page or attach them separately.

Official standard catalogues

Reference summaries only. Confirm full scope and required edition with the issuer and project specification.

US PROJECT ENQUIRIES

A clear specification.
A documented supply offer.

Steel Gems · Mumbai, India. Share your project requirement so we can review sourcing or manufacturing feasibility and prepare the offered scope for your US destination.

Upload your BOQ or drawing ↗

Butt-weld fitting checklist

Fitting geometry
Elbow / tee / reducer / cap; NPS inlet and outlet, angle and CLR or LR / SR designation. Confirm the radius basis.
End-wall dimensions
Schedule or actual wall at each connection, construction and bevel preparation. State dimensional standard / drawing.
Material & treatment
ASTM A234 / ASME SA234 WP11; confirm grade, heat treatment and product-specific inspection requirements.
Mixed packages
List each line with its own size, wall, quantity and unit. Identify permitted makes and any material substitutions needing approval.

Inspection & traceability

  • Request heat / batch traceability with the ordered grade and product specification.
  • State MTC type and any PMI, chemical / mechanical tests, NDT or third-party witnessing.
  • Agree the inspection plan, acceptance criteria and document list before order placement.
  • Request manufacturer, raw-material source and finished-product origin records where required.

Certification, testing and inspection availability depend on the product and agreed order. The catalogue illustration is not evidence of current stock or a specific manufactured item.

Use US units without losing precision

Specify NPS in inches and state the dimensional standard. For actual dimensions, include units: in / mm, ft / m or lb / kg. Nominal pipe size is not a direct measurement of OD.

Define piece length, total length, quantity and billing basis. For example, a standard or random length must be confirmed in the offer rather than assumed to be 20 feet or 6 metres.

Check NPS, OD, wall and weight →

Origin, packing & commercial scope

State any non-China, domestic-origin or approved-source restriction before quoting. Indian manufacture and non-China raw-material origin are separate requirements; both need supporting records if specified.

Include the US city / ZIP or port, requested delivery date, currency and Incoterms rule with its named place. Confirm protection, packing, freight, insurance and importer responsibilities in writing.

The importer / customs broker must confirm HTS classification, origin, applicable trade-remedy scope and duties. This page does not promise duty-free entry, approved-vendor status or compliance with a buyer-specific origin restriction.

Example enquiry — adapt to your approved specification

90-degree LR elbow, NPS 4, specified schedule / end wall, ASTM A234 / ASME SA234 WP11, permitted construction and dimensional standard as approved; quantity, inspection and US destination to confirm.

AVAILABLE RANGE

Sizes and supply range

  • Elbows, tees, reducers and caps
  • SCH 40 through XXS
  • Seamless and welded options by size
  • Matching P11 pipe and F11 flanges
PRODUCT FORMS

Types supplied

  • Long-radius elbows
  • Equal and reducing tees
  • Reducers
  • Caps and custom fittings
INDUSTRIES

Typical applications

  • Boiler piping
  • Power plants
  • Steam systems
  • Refinery service
QUALITY CONTROL

Inspection and documentation

  • MTC and heat-treatment records
  • PMI and hardness testing
  • UT/RT/DP as specified
  • IBR/TPI coordination
TECHNICAL SUPPLY NOTE

ASTM A234 WP11 Alloy Steel Fittings from Steel Gems

Steel Gems supplies ASTM A234 WP11 Alloy Steel Fittings for industrial maintenance, projects and export requirements. Every offer is reviewed against the stated material grade, dimensional standard, size, schedule or pressure class, quantity, testing scope and delivery requirement.

For a technically complete quotation, send the product description, applicable specification, size, thickness or schedule, end connection, quantity, required MTC, inspection agency and delivery location.

ENGINEERING FAQ

Frequently asked questions

Should WP11 fittings be matched with P11 pipe?

WP11 fittings are commonly used with ASTM A335 P11 pipe and F11 flanges, subject to the design code.

Is heat treatment documentation available?

Documentation can be supplied according to the material standard and purchase specification.

QUALITY YOU CAN TRUST

Documentation and inspection support

Steel Gems supports material certification, heat-number traceability, NABL laboratory testing, NDT and third-party inspection for ASTM A234 WP11 Alloy Steel Fittings when required by the purchase specification.

Discuss requirement →
Technical ranges are indicative and must be confirmed against the applicable code, project specification and formal Steel Gems quotation.
STEEL GEMS CONNECT

Everything, in one place.