Japanese standard elbows are dedicated directional pressure-bearing pipe fittings for industrial pressure pipelines under the Japanese JIS system. They are specially designed for Japanese high-standard precision piping, high-pressure boiler
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Japanese standard elbows are used to change the direction of media transport in pipelines, and are produced according to Japanese JIS industrial standards; ordinary piping implements JIS B2311, while high-pressure boilers and process piping implement JIS B2312. Specifications use the Japanese A series caliber, covering 15A to 1200A, and can also be compatible with DN metric markings; conventional angles are 45°, 90°, and 180°, and bending radii are mainly 1.0D short radius and 1.5D long radius, with custom special radii also supported. Materials cover SS400 carbon steel, SGP piping steel, STPG370, STPT410 high-pressure carbon steel, SUS304/SUS316L stainless steel, and heat-resistant alloy steel. Forming processes include seamless hot pushing, steel plate rolling, and die forging, and can be supplied as complete sets with Japanese standard tees, branch outlets, and flanges. Before purchasing, it is recommended to provide Japanese drawings or specific caliber, material, wall thickness grade, angle, and quantity, and we will assist in confirming the configuration and quoting.
| Product Name | JIS Elbow |
| Product Categories | Elbow |
| The full range of technical parameters for Japanese standard elbows strictly aligns with authoritative Japanese JIS industrial standards, with precise parameters, suitability for Japanese projects, and international high-end exemption from inspection. Core implementation standards | Ordinary piping JIS B2311, high-pressure boiler piping JIS B2312, fully compatible with Japanese industrial pressure piping standards. Specification system: caliber 15A–1200A Japanese-standard sizes, conventional angles 45°, 90°, 180°; bending radius 1.0D short radius, 1.5D long radius mainstream models, supporting custom special radii. Japanese-standard exclusive materials: SS400 carbon steel, SGP piping steel, STPG370, STPT410 high-pressure carbon steel, SUS304/SUS316L stainless steel, heat-resistant alloy steel. Wall thickness grades cover JIS standard wall thickness, Sch40/Sch80 high-pressure thickened wall thickness, compatible with low-pressure, medium-pressure, and high-pressure full-grade pipe networks. Working temperature range: carbon steel- |
| Customization | Our factory possesses deep non-standard customization capabilities for Japanese standard elbows across all categories and specifications, strictly based on the official JIS Japanese standards, precisely fulfilling customization needs for various Japanese drawings, precision working conditions, and Japanese-style equipment matching. We support customization in the full range of genuine Japanese standard materials, covering SS400 carbon steel, SGP piping steel, STPG370/STPT410 high-pressure carbon steel, SUS304/SUS316L stainless steel, heat-resistant alloy steel, and special alloys, precisely adapting to the harsh working conditions of Japanese-style high temperature, high pressure, precision vibration, and offshore salt spray corrosion. We support customization of non-standard parameters, and can produce 22.5°, 30°, 60° irregular angles, special long and short radii, non-standard thickened wall thickness, ultra-high pressure ratings, and large-diameter reducing Japanese standard elbows. We support high-end precision craftsmanship. |
| MOQ | Japanese standard elbows adopt a flexible and loose Japanese-style foreign trade minimum order mechanism, adapting to the diverse procurement needs of Japanese precision trial samples, Japanese-style equipment maintenance spare parts, engineering sporadic replenishment, small-batch stocking, and large Japanese EPC full-order centralized procurement, with no high minimum order threshold. For conventional SS400 carbon steel and SUS304 stainless steel general Japanese standard in-stock specifications, the MOQ is as low as 1 piece, supporting Japanese customers' fine |
| Lead Time | Our factory is equipped with dedicated precision production lines for Japanese-standard pipe fittings and large-scale regular foreign trade inventory. Having deeply cultivated the China-Japan cross-border supply chain for many years, we can efficiently and stably deliver Japanese-system orders worldwide. 15A–400A conventional 90°/45° 1.5D long-radius SS400 carbon steel and ordinary stainless steel Japanese-standard elbows are in ample stock, and can be completed within 24-48 hours after order parameters are checked and confirmed. |
| Packaging | Japanese standard elbows adopt Japanese-style precision export-grade refined packaging, suitable for China-Japan sea freight, Southeast Asia land transport, Japanese customs inspection, and Japanese-style high-end engineering precision acceptance standards, providing all-round protection to eliminate bumps, bevel damage, oxidation and rust, and precision deviation. Small-diameter precision Japanese standard elbows are equipped with thickened high-strength plastic protective caps at both ends, completely sealing the pipe openings, protecting the precision welding bevels and the cleanliness inside the pipe, preventing the entry of impurities and bump deformation of edges and corners, and meeting the acceptance requirements of Japanese-style clean pipelines. The exterior is double-layer wrapped with waterproof stretch film and thickened bubble wrap to achieve all-round shockproof, moisture-proof, and scratch-proof protection. Small and medium-sized standard products are classified and packed into thickened export cartons, affixed with Japanese-Korean bilingual labels, clearly marked with JIS standards, material, A-series diameter, wall thickness grade, and production batch, |
| Reference Price | Inquiry |
Conventional SS400 carbon steel and SUS304 stainless steel general Japanese standard in-stock specifications MOQ as low as 1 piece; 15A–400A conventional 90°/45° 1.5D long radius in-stock items can be shipped within 24–48 hours after order parameter verification and confirmation. For non-stock specifications, special materials, and customized products, please contact us to confirm the production schedule. Packaging is implemented according to export-grade standards: small diameters are fitted with plastic protective caps, small and medium specifications are packed in thickened export cartons with Japanese-Korean bilingual labels affixed, and large-diameter and high-pressure products are secured with rainproof cloth plus fumigation-free solid wood pallets. Carbon steel is sprayed with anti-rust oil, stainless steel is pickled and passivated then film-protected, and outer packaging can be customized with Japanese-English shipping marks and customer LOGO.
Pre-sales provides Japanese standard working condition diagnosis, JIS material selection, pressure rating matching, and old-new Japanese standard adaptation consultation, assisting in avoiding material mismatch and standard non-compliance issues. During sales, one-on-one foreign trade customer service follows up on orders, synchronizing production, heat treatment, inspection, packaging, and cross-border logistics progress, supporting order parameter fine-tuning, expedited production scheduling, Japanese-Korean bilingual qualification reprinting, and batch traceability inquiries. After-sales is implemented according to international standard warranty service; under compliant working conditions, products with non-human-caused quality defects support free return/exchange and replacement, and the corresponding cross-border logistics costs are borne. We can assist customers in handling Japanese-style engineering inspection submissions, third-party re-inspection, and customs clearance. Long-term customers enjoy inventory reservation, priority production scheduling, and exclusive bottom-price benefits.
JIS B2311 for general piping, JIS B2312 for high-pressure boilers and process piping. These two standards are the pipe fitting standards commonly used in Japanese and Southeast Asian Japanese-style engineering.
Japanese standards adopt the A-series dimensions, JIS-specific wall thickness and material systems; dimensional tolerances, pressure ratings, and acceptance standards differ from national standards and American standards. For legitimate Japanese projects, it is not recommended to mix pipe fittings of other standards.
By selecting the JIS B2312 high-pressure series and STPT high-pressure material, they can be adapted to Japanese boilers, ships, and high-temperature, high-pressure, and vibrating operating conditions. For specific selection, please provide the operating condition parameters, and we will assist in confirming.
Each order comes standard with a Japanese-English bilingual 3.1 certificate and a full set of inspection reports, supporting Japanese third-party inspection and customs clearance.
We support customization according to Japanese drawings, covering all materials, all precision levels, and special-shaped structures. Please provide the drawings and quantity, and we will assist in confirming the configuration and providing a quotation.
Regular SS400 carbon steel and SUS304 stainless steel general Japanese standard in-stock specifications have MOQ as low as 1 piece, and 15A–400A regular 90°/45° 1.5D long radius in-stock items can be shipped within 24–48 hours after parameter verification and confirmation. For non-stock and customized specifications, please contact us for confirmation.
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