TORICH INTERNATIONAL LIMITED
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 35-40 Days |
| Packaging Details | In bundles or in wooden boxes. |
| Outer Diameter | Common chromatography sizes: 1/16", 1/8", 1/4", 3/8" OD; custom metric sizes available |
| Wall Thickness | Common: 0.010", 0.020", 0.028", 0.035"; custom wall thickness by pressure and fitting requirement |
| Preferred Grade | 316L stainless steel for chromatography transfer lines |
| Straightness | ≤1.5 mm/m for precision straight tubing; tighter straightness by agreement |
| Material | 304, 304L, 316, 316L, 321 austenitic stainless steel |
| Base Standard | ASTM A269 / ASTM A213 / ASTM A249; EN 10216-5 / EN 10217-7; JIS G3459; GB/T 14976; GOST 9941 |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Heat Treatment | Solution annealed / bright annealed; ASTM A269 material is supplied in heat-treated condition |
| Length | Straight sticks commonly 6 ft ± 1/2"; base tubing can be supplied in 1–12 m lengths, while Sulfinert-coated straight lengths depend on coating capability and validation |
| Place of Origin | ZheJiang/China |
| Model Number | ASTM A249 |
| Brand Name | TORICH |
| Certification | ISO9001 ISO 14001 TS16949 |
View Detail Information
Explore similar products
super duplex 2507 oil gas stainless coiled tubing
Stainless Steel Tubing Small Medical Decoration Chemical Capillary Pipes
Hot Rolled Precision Steel Tube ASTM A554 Decorative Oval Single Slot Tube
ASTM A312 Seamless Thick Wall Stainless Steel Pipe
Product Specification
| Supply Ability | 60000 Ton/Tons per Year | Delivery Time | 35-40 Days |
| Packaging Details | In bundles or in wooden boxes. | Outer Diameter | Common chromatography sizes: 1/16", 1/8", 1/4", 3/8" OD; custom metric sizes available |
| Wall Thickness | Common: 0.010", 0.020", 0.028", 0.035"; custom wall thickness by pressure and fitting requirement | Preferred Grade | 316L stainless steel for chromatography transfer lines |
| Straightness | ≤1.5 mm/m for precision straight tubing; tighter straightness by agreement | Material | 304, 304L, 316, 316L, 321 austenitic stainless steel |
| Base Standard | ASTM A269 / ASTM A213 / ASTM A249; EN 10216-5 / EN 10217-7; JIS G3459; GB/T 14976; GOST 9941 | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Heat Treatment | Solution annealed / bright annealed; ASTM A269 material is supplied in heat-treated condition | Length | Straight sticks commonly 6 ft ± 1/2"; base tubing can be supplied in 1–12 m lengths, while Sulfinert-coated straight lengths depend on coating capability and validation |
| Place of Origin | ZheJiang/China | Model Number | ASTM A249 |
| Brand Name | TORICH | Certification | ISO9001 ISO 14001 TS16949 |
| Item | Specification |
|---|---|
| Material | 304, 304L, 316, 316L, 321 austenitic stainless steel |
| Base Standard | ASTM A269 / ASTM A213 / ASTM A249; EN 10216-5 / EN 10217-7; JIS G3459; GB/T 14976; GOST 9941 |
| Preferred Grade | 316L stainless steel for chromatography transfer lines |
| Outer Diameter | Common chromatography sizes: 1/16", 1/8", 1/4", 3/8" OD; custom metric sizes available |
| Wall Thickness | Common: 0.010", 0.020", 0.028", 0.035"; custom wall thickness by pressure and fitting requirement |
| Length | Straight sticks commonly 6 ft ± 1/2"; base tubing can be supplied in 1-12 m lengths, while Sulfinert-coated straight lengths depend on coating capability and validation |
| Tolerance Range | OD tolerance controlled according to ASTM A269 or customer drawing; tighter tolerance available for ferrule sealing zones |
| Straightness | ≤1.5 mm/m for precision straight tubing; tighter straightness by agreement |
| Surface Condition | Seamless bright annealed, welded/drawn, electropolished ID, Sulfinert-treated internal surface; external coating optional depending on process |
| Heat Treatment | Solution annealed / bright annealed; ASTM A269 material is supplied in heat-treated condition |
| Testing | Dimensional inspection, visual inspection, hardness test, flaring/flange/reverse flattening where applicable, hydrostatic or nondestructive electric test under ASTM A269 |
| Professional Concern | Practical Solution |
|---|---|
| Active sulfur compounds may adsorb to untreated stainless steel and cause delayed or false chromatographic response. | We specify Sulfinert-treated ID surfaces for trace sulfur, VOC, refinery gas, and environmental sampling lines, reducing memory effect in the sample path. |
| Coating thickness may affect compression fittings or dead volume. | The inert CVD layer is ultra-thin, typically 100-250 nm, so the tubing keeps standard OD geometry and can still be used with chromatography compression fittings when cut and deburred correctly. |
| Buyers need base-metal traceability, not only coating claims. | Tubes can be supplied with stainless steel grade certificate, ASTM A269 dimensional inspection, heat-treatment record, surface condition control, and coating batch documentation. |
| Standard System | Applicable Standard | Short Description |
|---|---|---|
| ASTM | ASTM A269 / A269M | Seamless and welded austenitic stainless steel tubing for general service |
| ASTM | ASTM A213 / A249 | Seamless or welded stainless tubing where heat exchanger or higher test requirements are specified |
| EN | EN 10216-5 / EN 10217-7 | Seamless or welded stainless steel tubes for pressure and technical service |
| JIS | JIS G3459 | Stainless steel pipes for corrosion-resistant and temperature service |
| GB | GB/T 14976 | Seamless stainless steel pipes for fluid transport |
| GOST | GOST 9941 | Seamless cold- and warm-deformed corrosion-resistant steel tubes |
| Grade | UNS | C max | Mn max | Si max | P max | S max | Cr | Ni | Mo | N max | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TP304 | S30400 | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 | -- | 0.10 | -- |
| TP304L | S30403 | 0.030 | 2.00 | 0.75 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | -- | 0.10 | -- |
| TP316 | S31600 | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | 0.10 | -- |
| TP316L | S31603 | 0.030 | 2.00 | 0.75 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | 0.10 | -- |
| TP321 | S32100 | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0-19.0 | 9.0-12.0 | -- | 0.10 | Ti = 5 × (C+N) to 0.70 |
| Grade | Tensile Strength min, MPa | Yield Strength 0.2% min, MPa | Elongation in 50 mm min, % | Rockwell B max | Brinell HB max |
|---|---|---|---|---|---|
| TP304 | 515 | 205 | 40 | 92 | 201 |
| TP304L | 485 | 170 | 40 | 92 | 201 |
| TP316 | 515 | 205 | 40 | 95 | 217 |
| TP316L | 485 | 170 | 40 | 95 | 217 |
| TP321 | 515 | 205 | 40 | 95 | 217 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
#torich-about-brief, #torich-about-brief * { box-sizing: border-box; } #torich-about-brief { --torich-red: #d71920; --torich-dark: #222a31; --torich-text: #4f5962; --torich-muted: #77818a; --torich-line: #e7eaed; --torich-soft: #f6f7f8; width: 100%; color: var(--torich-text); ... #torich-about-brief, #torich-about-brief * { box-sizing: border-box; } #torich-about-brief { --torich-red: #d71920; --torich-dark: #222a31; --torich-text: #4f5962; --torich-muted: #77818a; --torich-line: #e7eaed; --torich-soft: #f6f7f8; width: 100%; color: var(--torich-text); ...
Get in touch with us
Leave a Message, we will call you back quickly!