तकनीकी संदर्भ

पाइप फिटिंग सामग्री तुलना

विदेशी क्रय दल सामान्यतः ASTM/ASME ग्रेड निर्दिष्ट करते हैं; यूरोपीय परियोजनाएँ EN/DIN, जापानी/कोरियाई परियोजनाएँ JIS तथा चीनी परियोजनाएँ GB का उपयोग करती हैं। यह पृष्ठ फिटिंग, फ्लैंज और पाइप के लिए सर्वाधिक माँगे जाने वाले समकक्ष ग्रेड एकत्रित करता है।

36 परिणाम

Carbon-steel butt-welding fittings

Elbows, tees, reducers, caps for moderate-to-high-temperature service.

  • ASTM/ASME: A234 / SA234
  • EN: EN 10253-2 (P235GH/P265GH)
  • JIS: JIS B2311 / B2312
  • GB: GB/T 12459 (材质 GB/T 700)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
WPBP235GH (1.0345)STPG37020≤ 425°C, general carbon steelकोट
WPCP265GH (1.0425)STPG410Q345Higher tensile, ≤ 425°Cकोट

Alloy-steel butt-welding fittings (high temperature)

Cr-Mo creep-resistant alloys for high-temperature steam, refinery, power plant.

  • ASTM/ASME: A234 / SA234
  • EN: EN 10253-2 / 10216-2
  • JIS: JIS G3203 / G3458
  • GB: GB/T 12459 (材质 GB/T 5310)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
WP116Mo3 (1.5415)STPA1215Mo3≤ 530°Cकोट
WP1113CrMo4-5 (1.7335)STPA2212CrMo / 15CrMo≤ 580°Cकोट
WP1211CrMo9-10 (1.7383)STPA2312Cr2Mo≤ 580°Cकोट
WP2210CrMo9-10 (1.7380)STPA2412Cr2Mo / 12Cr2Mo1≤ 600°Cकोट
WP5X11CrMo5 (1.7362)STPA251Cr5Mo≤ 650°C, sulfideकोट
WP9X11CrMo9-1 (1.7386)STPA261Cr9Mo≤ 650°Cकोट
WP91X10CrMoVNb9-1 (1.4903)STPA28 / SUS410J310Cr9Mo1VNbN≤ 625°C, supercriticalकोट

Stainless-steel butt-welding fittings

Austenitic 304/316/321/347 corrosion-resistant fittings.

  • ASTM/ASME: A403 / SA403
  • EN: EN 10253-4
  • JIS: JIS B2311 (材质 JIS G3459)
  • GB: GB/T 12459 (材质 GB/T 14976)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
WP304 / 304LX5CrNi18-10 (1.4301) / X2CrNi19-11 (1.4306)SUS304 / SUS304L0Cr18Ni9 / 022Cr19Ni10General corrosionकोट
WP316 / 316LX5CrNiMo17-12-2 (1.4401) / X2CrNiMo17-12-2 (1.4404)SUS316 / SUS316L0Cr17Ni12Mo2 / 022Cr17Ni12Mo2Chloride / acid serviceकोट
WP321X6CrNiTi18-10 (1.4541)SUS3210Cr18Ni10Ti≤ 800°C, Ti-stabilizedकोट
WP347X6CrNiNb18-10 (1.4550)SUS3470Cr18Ni11Nb≤ 850°C, Nb-stabilizedकोट
WP310X8CrNi25-21 (1.4845)SUS310S0Cr25Ni20High-temp, scaling resistanceकोट
WP-DS (Duplex 2205)X2CrNiMoN22-5-3 (1.4462)SUS329J3L022Cr22Ni5Mo3NPitting / chlorideकोट

Low-temperature carbon / alloy fittings

LNG, cryogenic and arctic pipelines.

  • ASTM/ASME: A420 / SA420
  • EN: EN 10253-2 (P275NL2 / P355NL1)
  • JIS: JIS G3204 (SLA-series)
  • GB: GB/T 12459 (材质 GB 6479 16MnDR)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
WPL6P275NL2 (1.1104)SLA235A16MnDR≥ –50°Cकोट
WPL3P355NL2 (1.1106)SLA325B09MnNiDR≥ –100°Cकोट
WPL911MnNi5-3 (1.6212)SLA46006MnNiMoDR≥ –196°C, LNGकोट

Carbon-steel forged flanges

Forged carbon flanges per ASME B16.5 / B16.47.

  • ASTM/ASME: A105 / SA105 / A350
  • EN: EN 10222-2 (P250GH/P280GH)
  • JIS: JIS G3202 (SF440A/SFVC1)
  • GB: GB/T 9112 (材质 NB/T 47008 20)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
A105 / SA105P250GH (1.0460)SF440A / SFVC120 / 25General forged carbonकोट
A350 LF2P280GH / 11MnNi5-3 (1.6210/1.6212)SFL216MnDRLow-temp ≥ –46°Cकोट
A350 LF311MnNi5-3 (1.6212)SFL309MnNiDRLow-temp ≥ –100°Cकोट

Alloy-steel forged flanges

Cr-Mo forged flanges for high-temperature/high-pressure piping.

  • ASTM/ASME: A182 / SA182
  • EN: EN 10222-2
  • JIS: JIS G3203 (SFVA)
  • GB: GB/T 9112 (材质 NB/T 47008)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
F11 / F11 Cl.213CrMo4-5 (1.7335)SFVA F11A1.25Cr-0.5Mo≤ 593°Cकोट
F2210CrMo9-10 (1.7380)SFVA F22A2.25Cr-1Mo≤ 600°Cकोट
F5X11CrMo5 (1.7362)SFVA F5A5Cr-0.5MoSulfide serviceकोट
F91X10CrMoVNb9-1 (1.4903)SFVA F9110Cr9Mo1VNbN≤ 625°C, ultra-supercriticalकोट

Stainless-steel forged flanges

Austenitic forged flanges per ASME B16.5.

  • ASTM/ASME: A182 / SA182
  • EN: EN 1092-1 (材质 EN 10222-5)
  • JIS: JIS G3214 (SUSF)
  • GB: GB/T 9112 (材质 GB/T 1220)
ASTM / ASMEEN / DINJISGBसेवा स्थिति
F304 / F304L1.4301 / 1.4306SUSF304 / SUSF304L0Cr18Ni9General corrosionकोट
F316 / F316L1.4401 / 1.4404SUSF316 / SUSF316L0Cr17Ni12Mo2Chloride serviceकोट
F3211.4541SUSF3210Cr18Ni10Ti≤ 800°Cकोट
F51 (Duplex 2205)1.4462SUSF329J3L022Cr22Ni5Mo3NPitting / chlorideकोट

Seamless carbon-steel pipes

Seamless steel pipes for pressure and structural service.

  • ASTM/ASME: A106 / A53 / API 5L
  • EN: EN 10216-2
  • JIS: JIS G3454 / G3456
  • GB: GB/T 8163 / GB 5310
ASTM / ASMEEN / DINJISGBसेवा स्थिति
A106 Gr.BP235GH / P265GHSTPG370 / STPG41020Pressure pipingकोट
A53 Gr.BS195T / S235JRHSTPG370Q235BStructural / utilityकोट
API 5L X42-X70L290-L485L290-L485Oil & gas linepipeकोट

Stainless-steel pipes

Seamless / welded austenitic stainless pipes.

  • ASTM/ASME: A312 / SA312
  • EN: EN 10216-5
  • JIS: JIS G3459
  • GB: GB/T 14976
ASTM / ASMEEN / DINJISGBसेवा स्थिति
TP304 / TP304L1.4301 / 1.4306SUS304TP / SUS304LTP0Cr18Ni9 / 022Cr19Ni10General corrosionकोट
TP316 / TP316L1.4401 / 1.4404SUS316TP / SUS316LTP0Cr17Ni12Mo2 / 022Cr17Ni12Mo2Chloride serviceकोट
TP3211.4541SUS321TP0Cr18Ni10TiStabilized, ≤ 800°Cकोट
TP347H1.4912SUS347HTP0Cr19Ni10NbN≤ 850°C, creepकोट

Search-ready answers

Common standards, material and inspection questions

These short answers help engineers confirm whether a fitting, flange or certificate requirement belongs in the RFQ before sending drawings.

What is MSS SP-25 used for?

MSS SP-25 is the marking standard for valves, fittings, flanges and unions. For pipe fittings and flanges it is normally checked together with the product standard, material grade, heat number, manufacturer mark and MTC traceability.

MSS SP-25markingheat number
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What does JIS B2220 cover?

JIS B2220 covers steel pipe flanges used in Japanese projects. When replacing or quoting JIS flanges, confirm pressure rating, facing, bolt pattern, material grade and whether the project needs EN 10204-style material certification.

JIS B2220flangespressure rating
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When should ASME B31.1 or ASME B31.3 be applied?

ASME B31.1 is commonly used for power piping such as boiler external piping and power-plant systems. ASME B31.3 is commonly used for process piping in refinery, chemical and industrial plants. Final selection follows the project design code.

ASME B31.1ASME B31.3design code
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What material is ASTM A234 WPB?

ASTM A234 WPB is a wrought carbon-steel fitting grade for moderate and high-temperature pressure piping. It is commonly used for elbows, tees, reducers and caps matched with A106 Gr.B pipe and A105 forged flanges.

A234 WPBcarbon steelB16.9
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What is the difference between EN 10204 3.1 and 3.2 MTC?

EN 10204 3.1 MTC is issued by the manufacturer with test results traceable to the batch. EN 10204 3.2 adds independent buyer or third-party inspection witness, which is often required for critical EPC, pressure-equipment and offshore projects.

EN 10204MTC 3.1MTC 3.2
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What do RT, UT, MT and PT mean in piping inspection?

RT is radiographic testing, UT is ultrasonic testing, MT is magnetic particle testing and PT is liquid penetrant testing. The exact percentage and acceptance criteria must follow the drawing, ITP and applicable code.

RTUTMTPT
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उत्पादन सीमा

हम वास्तव में अपने प्लांट में क्या बनाते हैं

ऊपर दिए मानक वे कोड हैं जिनके अनुसार हम काम करते हैं। नीचे हमारे प्लांट से डिलीवर करने योग्य आयाम और क्षमता सीमा है।

बट-वेल्ड फिटिंग्स DN रेंज

DN 15 — DN 1500

ASME B16.9 / EN 10253 / MSS SP-75

अधिकतम फ्लैंज OD

5 m

फोर्ज + मशीनिंग; ASME B16.47 Series A/B + EN 1092-1

अधिकतम फोर्जिंग टनेज

50 t

कस्टम फोर्जिंग, ब्लॉक, बड़े OD ब्लैंक

प्रेशर क्लास कवरेज

PN 6 — PN 400 / Class 150 — 2500

Class 150 / 300 / 600 / 900 / 1500 / 2500 (ASME B16.5 / B16.47); PN 6 - PN 400 (EN 1092-1)

अस्वीकरण

यह तुलना तालिका सार्वजनिक मानकों के आधार पर तैयार की गई है और केवल तकनीकी संदर्भ हेतु है। अंतिम सामग्री विनिर्देशन अनुबंध के तकनीकी अनुसूची, लागू अनिवार्य मानकों (PED, ASME, CE आदि) और योग्य सामग्री इंजीनियरों की समीक्षा के अनुसार होगा।